taxonID	type	description	language	source
46BDDBCDE53E51EEA25CAF8B348BB938.taxon	etymology	Etymology. The species name '' Phyllocnistis cretacea " refers to the Cretaceous age of the species.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
46BDDBCDE53E51EEA25CAF8B348BB938.taxon	description	Description of holotype. The caterpillar is 7 mm long and flat, maximum width 1.18 mm (in T 2). The thorax (T 1 to T 3) is 1.06 mm long. Dorsal prothoracic plates of roughly triangular form are present (figuring alike in Hering (1951: fig. 85 a). The broadest segment of the abdomen is A 6 with 0.88 mm, the abdomen is 5.78 mm long. The head is 0.53 mm long and 0.75 mm broad, depressed, triangular, and prognathous. Mandibles are developed, antennae are minuscule. The spinneret is well-developed and 0.05 mm long. Legs and prolegs are not developed. The longest abdominal segment is 0.68 mm (A 3), the shortest abdominal segment is 0.38 mm (A 9). There are each two lateral bulges (dorsal and ventral ones) on either side of all abdominal segments, each bulge carries a prominent seta; these setae are maximal 0.2 mm in length and bent backwards. The terminal segment is 0.28 mm long and 0.5 mm broad. There are several syninclusions preserved in the same amber: Coleoptera (5 taxa), Hymenoptera (a wasp), Psocoptera, trichomes, a 4 mm wood fragment, arthropod feces, undefinable plant, and chitin detritus.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
46BDDBCDE53E51EEA25CAF8B348BB938.taxon	description	Description of paratype I. The caterpillar (coll. Fischer no. 7790) is 6.5 mm long and subcylindrical, maximum width 1.02 mm (in T 3) (Fig. 4). The thorax (T 1 to T 3) is 1.25 mm long. The broadest segment of the abdomen is A 4 with 0.88 mm, the abdomen is 4.41 mm long. The head is 0.39 mm long and 0.65 mm broad, depressed, triangular, and prognathous. Mandibles and antennae are developed. A visible leg is 0.26 mm long. The longest abdominal segment is 0.77 mm (A 4), the shortest abdominal segment is 0.26 mm (A 9). There are no prolegs. There are each two lateral bulges (dorsal and ventral) on either side of all abdominal segments. There are at least two setae in lateral positions on either side of each segment, these are maximal 0.16 mm in length. The terminal segment is 0.3 mm long and 0.32 mm broad. Remark: The paratype is non-compressed, but part of the head is not well preserved. Dorsal prothoracic plates may be present, impressions with similar form are visible. A spinneret is not visible, but the head is partly hidden by some chitinous membrane.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
46BDDBCDE53E51EEA25CAF8B348BB938.taxon	description	Description of paratype II. The caterpillar (coll. Fischer no. 7512) is 4 mm long and subcylindrical, maximum width 0.83 mm (in T 1) (Fig. 5). The thorax (T 1 to T 3) is 1.2 mm long. The broadest segment of the abdomen is A 3 with 0.7 mm, the abdomen is 2.93 mm long. The head is partly retracted in the thoracic segment T 1, 0.69 mm long (visible through T 1) and 0.56 mm broad, depressed, triangular, and prognathous. Head and thorax are significantly thicker than abdomen in general outline. Mandibles and antennae are developed but tiny. There are no legs and prolegs. The abdomen is 2.93 mm in length, the longest abdominal segment is 0.39 mm (A 5), the shortest abdominal segment is 0.17 mm (A 10). There are each two lateral bulges (dorsal and ventral) on either side of all abdominal segments. The terminal segment is 0.17 mm long and 0.3 mm broad. There are no setae visible.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
46BDDBCDE53E51EEA25CAF8B348BB938.taxon	diagnosis	Diagnosis of Phyllocnistis cretacea. Subcylindrical caterpillars, up to 7 mm long (in known specimens and instars), head depressed, triangular and prognathous, head partly retracted or retractable in thorax, mandibles developed, minuscule antennae present, spinneret at least in late instars present, thorax with T 1 having the largest diameter of all segments, tiny legs may be developed, each segments with two lateral bulges (dorsal and ventral) on either side of all abdominal segments, setae can be present, spinneret and dorsal prothoracic plates of roughly triangular form may be developed, there are no prolegs.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
8747796CB844512FA8E0DA959DB7EFCF.taxon	etymology	Etymology. The species name '' Phyllonorycter inopinata " " surprising " refers to the seemingly unlikely find of a leaf mining caterpillar preserved in amber.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
8747796CB844512FA8E0DA959DB7EFCF.taxon	description	Description of holotype. The caterpillar is 5 mm long and subcylindrical, maximum width 0.73 mm (in A 4). The head is 0.36 mm long and 0.5 mm broad, depressed, triangular, and prognathous. Mandibles and antennae are developed. The legs are small (0,15 - 0.2 mm long). The thorax (T 1 to T 3) is 0.45 mm long and 0.63 mm broad. The longest abdominal segment is 0.61 mm (A 4), the shortest abdominal segment is 0.3 mm (A 9). Prolegs at abdominal segments A 3 to A 5 are small. There are three setae in lateral positions on either side of each segment, these are maximal 0.2 mm in length and could not be exactly positioned. The terminal segment is 0.21 mm long and 0.43 mm broad.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
8747796CB844512FA8E0DA959DB7EFCF.taxon	diagnosis	Diagnosis. A differential diagnosis to other Phyllonorycter species is currently impossible. The holotype is the only known specimen of the new species P. inopinata. Consequently, there is no information on variability and differences between subsequent instars. A comparison to similar extant species like P. leucographella or P. platani suffers from the same insecurities. Future findings from Baltic amber may enable a differential diagnosis.	en	Fischer, Thilo C. (2021): In search for the unlikely: Leaf-mining caterpillars (Gracillariidae, Lepidoptera) from Upper Cretaceous and Eocene ambers. Zitteliana 95: 135-145, DOI: http://dx.doi.org/10.3897/zitteliana.95.63317, URL: http://dx.doi.org/10.3897/zitteliana.95.63317
