taxonID	type	description	language	source
0392A002FFA3FFA4FF2219C6FD58693E.taxon	description	(Figs 2 – 13) Final instar larva: Total length 40 – 45 mm (N = 4). Background color of head and notal sclerites yellowish-brown to reddish-brown (Fig. 2). Head: Head capsule width 3 – 4 mm (n = 4). Entire head (Figs 3 − 4) yellowish-brown with median reddish-brown band on frontoclypeal apotome, median band extending from anterior margin to posterior angle of frontoclypeal apotome, suddenly wider posterior of setae no. 5; small pale spot surrounding base of each seta no. 11, 14, and 17 (Fig. 3); small dark muscles scars evident on posterior half of head (Figs 3 − 4, 6). Labrum (Fig. 3) with anterolateral brushes of hairs, setae no. 5 and setae no. 6 longer than other setae. Right mandible (Figs 3 − 4) triangular with acute apex, one blunt dorsal tooth and two ventral teeth on mesal margin, left mandible triangular with 3 teeth; basolateral margin of each mandible with 2 pairs of long setae. Labium (Fig. 4) with submental sclerite forming lightly sclerotized, V-shaped strap; maxillary lobes each represented by a slender finger-like process mesal of its maxillary palp; transverse cardines (Fig. 4) triangular; ventral apotome (Fig. 4) narrowly triangular. Thorax: Pronotum (Figs 6, 9) yellowish-brown with black posterior margin; several pairs of short and long setae along lateral and anterior margins and on pronotal surface; pale muscle scars present near posterior edge; prosternal horn (Fig. 7 arrow) and dark triangular prothoracic sternellum present. Mesonotum (Figs 6, 9) largely membranous; large mesonotal sa 1 sclerites contiguous mesally; mesonotal sa 2 sclerites present but very small and separate; mesonotal sa 3 sclerites ovoid, each with 12 – 14 long setae. Metanotal setae in positions sa 1 and sa 2 each have small, sclerotized area around base (Figs 6, 9); metanotal sa 3 sclerites ovoid, each bearing 10 long setae. Legs brown (Figs 10 − 12); forelegs somewhat raptorial, each with forefemur broad, flat; midfemur broader than hind femur, but narrower than forefemur; lower edges of trochanters and femora each with row of fine setae (arrows). Coxal combs small, each comb appearing as tiny, raised, transverse band (individual teeth not evident at 50 X magnification), combs distributed over much of mesoventral surfaces of fore- and midcoxae (Fig. 13, arrows). Abdomen: First abdominal segment with three well-developed humps (one dorsal and two lateral) (Figs 2, 8, 9, arrows). Abdominal gills single on segments I to VIII (Table 1). Lateral fringe on each side of segments III to VIII (Fig. 8, arrows). Tergite IX (Fig. 14) heart-shaped with reddish brown dots (arrow); with 4 pairs of setae, mesal pair longest, lateral pair about one-third as long as mesal pair. Abdominal segment X lateral sclerite (Fig. 14) with reddish-brown markings, and lateral and posterodorsal setae; basal tuft consisting of 3 stout, longer setae; anal proleg claw (Fig. 14) with 2 accessory hooks (Fig. 15, arrow). Larval case (Fig. 5) of Eubasilissa maclachlani of 5 ring-like sections of rectangular leaf pieces fastened side by side, with rings joined end to end. Length of larval case up to 40 mm.	en	Panich-Pat, Thanawan, Prommi, Taeng On (2021): The larva of Eubasilissa maclachlani White 1862 (Trichoptera: Phryganeidae) from Thailand, with notes on its biology. Zootaxa 5081 (2): 286-294, DOI: https://doi.org/10.11646/zootaxa.5081.2.7
0392A002FFA3FFA4FF2219C6FD58693E.taxon	materials_examined	Material examined: THAILAND: PHITSANULOK PROV.: Phu Hin Rong Kla National Park, Mhun Daeng Noi stream, 1600 m a. s. l., 16 ° 57 ’ N, 101 ° 03 ’ E, 17 - i- 2003, 3 larvae, 1 male adult, leg. Viteepradit. CHIANG MAI PROV.: Doi Inthanon National Park, Siriphum Waterfall, 1380 m a. s. l. 18 ° 32 ’ N, 98 ° 31 ’ E, 13 - i- 2003, 1 larva, 1 male adult, leg. Thamsenanupap.	en	Panich-Pat, Thanawan, Prommi, Taeng On (2021): The larva of Eubasilissa maclachlani White 1862 (Trichoptera: Phryganeidae) from Thailand, with notes on its biology. Zootaxa 5081 (2): 286-294, DOI: https://doi.org/10.11646/zootaxa.5081.2.7
0392A002FFA3FFA4FF2219C6FD58693E.taxon	discussion	Bionomics. The larval specimens of E. maclachlani were collected from slowly flowing streams where leaves accumulated (Fig. 1). The water temperature was under 20 ºC on average (Malicky & Chantaramongkol 1993; Changthong & Chantaramongkol 2005; Thamsenanupap 2005). An annual physicochemical analysis revealed that larvae grow in well-oxygenated (7.63 mg / L) and low-mineralized waters with a pH range of 5.8 – 6.8, alkalinity of 1.80 mg / L, and nitrate nitrogen, orthophosphate, and ammonia nitrogen of 0.9, 0.05, and 0.31 mg / L, respectively. The turbidity of water was 15.25 NTU. The guts of the larvae contain leaf fragments. Larvae of E. maclachlani can be found throughout the year in various instars (Changthong & Chantaramongkol 2005), but the adult stage was only found in the cool months (November to January) (Thamsenanupap 2005). Himalopsyche acharai Malicky & Chantaramongkol 1989, Rhyacophila petersorum Schmid & Denning 1971 (in Denning & Schmid 1971), Arctopsyche hynreck Malicky & Chantaramongkol 1991 a, Trichomacronema paniae Malicky & Chantaramongkol 1991 b, and Ugandatrichia maliwan Malicky & Chantaramongkol 1991 a, are other caddisfly species that appear together with E. maclachlani (Thamsenanupap 2005).	en	Panich-Pat, Thanawan, Prommi, Taeng On (2021): The larva of Eubasilissa maclachlani White 1862 (Trichoptera: Phryganeidae) from Thailand, with notes on its biology. Zootaxa 5081 (2): 286-294, DOI: https://doi.org/10.11646/zootaxa.5081.2.7
