taxonID	type	description	language	source
0391878EFFE9FFFDFF31C4D9FD6EF886.taxon	description	Genitalia study at Lambula hypopolius Rothschild, 1916 proved that this species in fact belongs to Orieosia. The structure of the genitalia match perfectly with that of this genus. It will be described below in the systematic part. The more or less similar patterned Utriculofera tetrastigmata Rothschild, 1916 definitely does not belong to Utriculofera Hampson, 1893 since the males in this genus have remarkable and conspicuous shaped wings and a short and broad abdomen with dorsal anal coremata, while in tetrastigmata there is only a distal anal tuft and the abdomen is long and slender. Study of the genitalia of tetrastigmata made clear that this species also belongs to Orieosia. Both species are therefore transferred to Orieosia: Orieosia hypopolius (Rothschild, 1916) comb. nov. and O. tetrastigmata (Rothschild, 1916) comb. nov.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFE8FFFFFF31C7A6FCF4FA29.taxon	description	(Figs 2 – 3, 10, 13, 16)	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFE8FFFFFF31C7A6FCF4FA29.taxon	description	Note: The other ♀ syntype of hypopolius belongs to the next species and is designated to be a paratype of that species (see below).	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFE8FFFFFF31C7A6FCF4FA29.taxon	diagnosis	Diagnosis: Like most Orieosia, the species has unicolorous forewings patterned with one tiny dark antemedian spot on the cubital vein and one or two tiny postmedian spots at the end of the cell. In size and pattern O. hypopolius is most reminiscent of O. stenoptera spec. nov., but the forewings are broader in hypopolius with arched costa, those of stenoptera are distinctly narrower with a straight costa. The spots in the cell are somewhat more pronounced in hypopolius than in stenoptera. Patagia of hypopolius broader than in stenoptera. Further distinguishing characters are in the genitalia. Orieosia hypopolius has in the male genitalia the slender sacculus extension at the apex with a knob, in the similar O. orientalis (Hampson, 1909) whereas it is sharp and in tetrastigmata (Rothschild, 1916) this extension is large and broader. The rectangular valve in hypopolius at the apex with one thorn, in orientalis this thorn is longer and positioned centrally, in tetrastigmata this thorn is broad and blunt. The aedeagus of hypopolius bears on the vesica distally three long cornuti and dorsally a scobinated field, in orientalis and tetrastigmata the cornuti are numerous and much smaller. Unfortunately no males of stenoptera are presently known so no comparison is possible with this species. In the female genitalia the antrum of hypopolius is shorter than in stenoptera, in tetrastigmata the antrum is much longer and narrow. The sclerotization of the large bursa copulatrix in hypopolius in the upper part of the bursa is one field of ribs and small spikes, while in stenoptera the antrum is longer and slightly broader with on top of the smaller bursa copulatrix the sclerotized cervix bursae consisting of two sclerotized lobes covered with striae and spikes, in tetrastigmata this sclerotized field is fan-shaped with regular striae and with some tiny spikes.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFE8FFFFFF31C7A6FCF4FA29.taxon	description	Description: Fwl. ♂ 8.5 – 9.2 mm, ♀ 8.8 – 9.6 mm. Male and female almost identical. Antennae in male thicker and serrate, in female ciliate. Head and patagia broad. Antennae, head and thorax pale yellowish-buff. Abdomen grey, legs yellow-buff. Forewings broad with arched costa. Ground colour unicolorous yellowish-buff, scarcely sprinkled with brown scales. Dark brown spots in lectotype all three present, very small, in some specimens the distal lower one may be missing. Fringes short, silvery white with a thin dark fringe line. Hindwings broad triangular, termen slightly concave, in male pale yellowish-grey, apically suffused with grey-buff, in female hindwings unicolorous grey. Male genitalia with tegumen high and slender, uncus thin, curved and with sharp apex. Vinculum wide with a flat saccus. Valvae rather narrow, cucullus distinctly broader than sacculus and almost at full length parallel, at base narrow and at apex narrowing to a sharp thorn. Sacculus narrow, slightly broadening in the middle and apically extended with a slender process, slightly bend and with a knob at the apex. Aedeagus slightly “ S ” - curved, coecum with straight bottom. Vesica basally with a small field of small spikes, a larger distal field of tiny chitinous drops and distal-ventrally with three to four large needle-shaped cornuti. Female genitalia with a broad and rather long funnel-shaped antrum, continued by a broad coil with sclerotized ribs running into a broad field of sclerotized ribs and spikes in the upper part of the bursa copulatrix. Bursa with a large membranous lobe, the cervix bursae, at the right side with the connection of the ductus seminalis at its base on the underside of this lobe. Bursa copulatrix large and globular with centrally some excentric wrinkles.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFE8FFFFFF31C7A6FCF4FA29.taxon	distribution	Distribution: The species is widely distributed on New Guinea, on Karkar Island (Madang Province, Papua New Guinea, former Dampier Island), the mainland of Papua New Guinea (Kokoda, Oro Province), and at a wide distance in the far western part of New Guinea, on the Birdshead Peninsula, the Onin Peninsula and on the Raja Ampat Islands Waigeo and Batanta (Papua Barat, Indonesia).	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEBFFFEFF31C703FD07FC90.taxon	description	(Figs 4, 17)	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEBFFFEFF31C703FD07FC90.taxon	materials_examined	Holotype: ♀, RMNH. INS. 1108990, Indonesia, Irian Jaya, Arfak Mts, Warmare Dua, 0 ˚ 58 ′ S – 133 ˚ 53 ′ E, 27. ii. 1996, at light, primary forest / cultiv. area, ZMA-exp. 1996. Paratypes: 4 ♀♀, RMNH. INS. 1108987 - 989, KSP 65151, Indonesia, Irian Jaya, Arfak Mts, Warmare Dua, 0 ˚ 58 ′ S – 133 ˚ 53 ′ E, 27. ii. 1996, at light, primary forest / cultiv. area, ZMA-exp. 1996; 1 ♀, RMNH. INS. 1108999, Indonesia, Papua Barat, Birdshead Peninsula, Arfak Mountains, Maripi, 112 m, 0 ˚ 55 ′ S – 133 ˚ 58 ′ E, 19. xi. 2011, at light, Papua Insects Foundation; 1 ♀ (syntype of hypopolius), NHMUK 010918910, # 956, [Papua New Guinea], Dampier Isl. [Karkar], Feb. Mch. 1914., Meek’s Exped., Rothschild Bequest, B. M. 1939 - 1; 1 ♀, NHMUK 014201615, [Papua New Guinea, Central Province], Papua, Mafulu, 4,000 ft, xii. 1933, L. E. Cheesman, B. M. 1934 - 321.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEBFFFEFF31C703FD07FC90.taxon	diagnosis	Diagnosis: Forewings distinctly narrower compared with the similar O. hypopolius. Head and patagia smaller than in hypopolius. Cell with two or three, tiny obscure dots, less pronounced than those in hypopolius. Hindwings narrower and darker in stenoptera than in hypopolius. Fringes of both wings longer in stenoptera than in hypopolius. Female genitalia with a longer and somewhat broader antrum than in hypopolius. Cervix bursae with two lobes covered with sclerotized striae and spikes, in hypopolius and tetrastigmata this is one field.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEBFFFEFF31C703FD07FC90.taxon	description	Description: Fwl. ♀ 9.0 – 10.2 mm. Male unknown. Female with antennae ciliate. Antennae, head and thorax buff, abdomen dark grey. Legs buff. Forewings narrow with straight costa, near base more arched. Apex rather sharp. Ground colour of forewing buff, marginally slightly suffused with dark grey, in some specimens more or less sprinkled with dark brown scales. Usually with two small dark brown spots in cell, one in the middle on the cubital vein, and one at the end of the cell, in some specimens a small third spot is visible obliquely below the other one, or all spots may be missing. Fringes long, silvery white with a narrow yellowish fringe line. In some contrasted specimens a row of faint marginal spots are visible along the apex. Hindwings rather narrow triangular, termen not concave, apex rather acute. Ground colour of hindwing grey, slightly darker near apex. Female genitalia with a long and broad funnel-shaped antrum. Cervix bursae on top of the bursa copulatrix with two large lobes covered with sclerotized striae and spikes. Bursa copulatrix rather small.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEBFFFEFF31C703FD07FC90.taxon	distribution	Distribution: The species is occurring sympatric with O. hypopolius. It is found on the Birdshead Peninsula at low altitudes in the northern Arfak Mountains (Papua Barat, Indonesia) and in the far East of New Guinea on Karkar Island (former Dampier Island) and in the Owen Stanley Range (Central Province, Papua New Guinea).	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEBFFFEFF31C703FD07FC90.taxon	etymology	Etymology: The species name refers to the relatively narrow forewings (Greek: stenos = narrow, ptera = wing) compared with its sibling species O. hypopolius.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEAFFF9FF31C29BFE9DFEA8.taxon	description	(Figs 5 – 7, 11, 14, 18)	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEAFFF9FF31C29BFE9DFEA8.taxon	description	Paralectotype (here designated from syntypes): 1 ♂, NHMUK 010918914, same locality data as holotype.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEAFFF9FF31C29BFE9DFEA8.taxon	diagnosis	Diagnosis: The smallest species of Orieosia. It is furthermore characterized by the larger size of the spots on the forewing, one antemedian spot on the cubital vein and only one postmedian spot at the end of the cell. In all other New Guinea species these spots are much smaller and in some specimens they have two postmedian spots under each other. More contrasted specimens have marginal spots along the apex (the pale lectotype has these missing). The ground colour is more greyish-buff than the yellow-buff in hypopolius. Male genitalia with the extension of the sacculus broader and longer than in the previous species. The thorn at the end of the valve broad and blunt, in other species narrow and sharp. Female genitalia with long and narrow antrum, in other species much broader. Globular bursa copulatrix with a scarcely sclerotized fan-shaped field of striae and tiny spikes, in other species this is much heavier sclerotized, cervix bursae a large membranous lobe at the right side with the connection to the ductus seminalis underneath.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEAFFF9FF31C29BFE9DFEA8.taxon	description	Description: Fwl. ♂ 6.0 mm, ♀ 6.9 mm. Head, antennae and thorax grey-buff. Abdomen brownish-grey. Forewing of male rather short and relatively broad with rounded termen and arched costa. The ground colour of forewing is grey-buff, which is scarcely sprinkled with dark brown scales. Two prominent black dots in the cell, one in the middle on the cubital vein, another at the end of the cell. Along the apex a row of marginal dots, on the costa in the apical third also some dots may be present. Paler specimens may lack all marginal dots, but the cell spots are present. Hindwing broad triangular, uniformly grey. Fringes on fore- and hindwing pale yellowish-grey. Male genitalia with wide thin tegument and a small and slender uncus with a sharp apex. Vinculum wide, saccus hardly developed. Valvae more or less shallow “ S ” - shaped, the cucullus at costa arched, at the apex with a broad and blunt thorn. Sacculus broadly based, gradually narrowing in a rather broad and long extension with a blunt apex. Aedeaugus simple tube-shaped with a flat coecum. Vesica with a dorsal field of numerous tiny blunt thorn- and disc-shaped cornuti. Female genitalia with a narrow and long antrum, wider at the ostium. Globular bursa copulatrix on top with a thinly sclerotized fan-shaped field of striae and tiny spikes. At the right side the cervix bursae as a globular membranous lobe with the connection to the ductus seminalis at the underside of the cervix.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEAFFF9FF31C29BFE9DFEA8.taxon	distribution	Distribution: The type locality is Dampier Island (Karkar Island, Madang Province, Papua New Guinea) from where two males are known. A female specimen has been found on Mailu Island, at the southeastern coast of Papua New Guinea.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEDFFF9FF31C082FC81F8E4.taxon	description	(Figs 8 – 9, 12, 15, 19)	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEDFFF9FF31C082FC81F8E4.taxon	materials_examined	Holotype: ♂, RMNH. INS. 1108865, Indonesia, Papua, Kecamatan Abenaho, Pass Valley, 1950 m, 3 ˚ 51 ′ S – 139 ˚ 05 ′ E, 11 – 17. ii. 2005, at light, disturbed montane forest, UNCEN-ZMA Expedition, Papua Indonesia 2005. Paratype: 1 ♀, RMNH. INS. 1108866, Indonesia, Papua, Kecamatan Nipsan, Walmak, 1710 m, 4 ˚ 07 ′ S – 138 ˚ 36 ′ E, 31. i – 09. ii. 2005, at light, cultivated area, UNCEN-ZMA Expedition, Papua Indonesia 2005.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEDFFF9FF31C082FC81F8E4.taxon	diagnosis	Diagnosis: Larger than other Orieosia species. The colour of the wings is whitish gray instead of the buff colour in other species. The for Orieosia typical three dots on the forewing are present, as well as some suffusion at the costa and dorsum and a vaguely visible subterminal row of small dots, which is not seen in any other species in the genus. Like in other Orieosia species the apex of the hindwing has a dark suffusion. Male valve with a straight apex with two thorns, one at each corner, in hypopolius and other species the apex is convex with only one thorn. Aedeagus with on vesica a group of numerous small needle-shaped cornuti, instead of the three larger ones in hypopolius. Scobinated field wider and with larger chitinous drops than in hypopolius. Female genitalia with a shorter antrum than in hypopolius, and sclerotized part of the bursa copulatrix smaller, densely covered with fine spikes. Cervix bursae an membranous hanging lobe at the left side.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEDFFF9FF31C082FC81F8E4.taxon	description	Description: Fwl. ♂ 8.5 mm, ♀ 10.5 mm. Head, thorax, including patagia and tegulae, and abdomen gray. Antennae in male rather short and thick, serrate at one side, in female the antennae are much thinner, filiform with scarce setae. Legs greyish white. Forewing in male and female of normal shape for Orieosia, costa in female more arched than in male. Ground colour pale whitish-gray. In male along the costa some suffusion with black scales, more stronger basally and medially as well as at the mid-dorsum. A black dot in the basal part of the cell just above the cubital vein, and two dots obliquely placed at the end of the cell. An obscure row of submarginal dots is visible in the middle. Hindwing of normal shape, below apex slightly excavated. Ground colour pale whitish-gray, apically in a broad area suffused with dark gray. Male genitalia with a rather short uncus, slender, straight and with sharp apex. Tegumen triangular shaped, vinculum widely “ U ” - shaped, no saccus developed. Valvae rather narrow, cucullus almost rectangular with straight apex and at each corner a thorn, the costal thorn larger than the tornal thorn, dorsum of cucullus not sclerotized. Sacculus narrow and apically gradually narrowing to a curved and slender extension with a blunt apex. Aedeagus a short straight tube with an oval carinal plate. Vesica dorsally with a wide scobinated field of larger and smaller chitinous drops and laterally a group of about 20 small needle-shaped cornuti. Female genitalia with a short and broad tube-shaped antrum which just not reaches the bursa copulatrix, it is continued by a short membranous part of the ductus bursae. Bursa copulatrix globular, with at the right side a field of numerous small spikes and some scobinated fields with tiny drops in the middle. Cervix bursae an membranous lobe at the left side where at the underside the ductus seminalis originates.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEDFFF9FF31C082FC81F8E4.taxon	distribution	Distribution: Both known specimens have been found directly East from the Baliem Valley in the Jayawijaya Mountains (Papua, Indonesia) in the Central Mountain Range, at an altitude between 1700 – 2000 meter.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
0391878EFFEDFFF9FF31C082FC81F8E4.taxon	etymology	Etymology: The name albigrisea is derived from the whitish-gray ground colour of the wings of the species which is different from other species in the genus Orieosia.	en	Vos, Rob De (2022): The genus Orieosia Bucsek, 2012 also found in New Guinea, with description of two new species (Lepidoptera: Erebidae, Arctiinae, Lithosiini). Zootaxa 5188 (2): 179-188, DOI: https://doi.org/10.11646/zootaxa.5188.2.7
