Gnaptorina tishkovi Medvedev 1998
Creators: name: Ji, Bao-Yue
name: Guo, Tong-Yang
name: Gu, Mei-Chang
name: Ren, Guo-Dong
name: Li, Xiu-Min
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Tenebrionidae
Gnaptorina
Gnaptorina tishkovi

description: Gnaptorina tishkovi Medvedev, 1998
Examined materials.
Larvae. 14 exx. (MHBU): Qomolangma, Tingri County, Xizang / 28 ° 11.33 ′ N, 86 ° 49.80 ′ E / Alt. 4960 m / 2023 - VII- 20 / Xing-Long Bai, Quan-Yu Ji, Jian Song leg.; 5 exx. (MHBU): Tingri County, Xizang / 28 ° 36.68 ′ N, 87 ° 07.78 ′ E / Alt. 4270 m / 2014 - VII- 24 / Guo-Dong Ren, Xing-Long Bai, Jun-Sheng Shan leg.; 5 exx. (MHBU): Tingri County, Xizang / 28 ° 27.58 ′ N, 87 ° 37.15 ′ E / Alt. 4480 m / 2019 - VIII- 16 / Xiu-Min Li leg.; 10 exx. (MHBU): Dinggyê County, Xizang / 28 ° 08.48 ′ N, 87 ° 42.45 ′ E / Alt. 4700 m / 2014 - VIII- 4 / Guo-Dong Ren, Xing-long Bai, Jun-Sheng Shan leg.; 5 exx. (MHBU): Dinggyê County, Xizang / 2014 - VIII- 4 / Guo-Dong Ren leg.
Description.
Body (Fig. 4 A – C). Larvae length 21.8–23.5 mm, width 2.4–3.0 mm. Body yellowish brown, shiny, body wall ossified; median line obvious on on thorax dorsally and abdominal tergite I.
Head (Fig. 4 B, D – G). Labrum transverse; apical part with six setae; anterior margin with two discal and six slender lateral marginal setae; epipharynx with sparse setae on lateral margin, with two basal spines on central area, between the basal spines with four mastoids, with six mastoids above the basal spines (Fig. 4 G); mandible left-right unsymmetrical, membranous elevation with two setae (Fig. 4 D, F). Epicranial stem Y-shaped, epicranial stem with a pair of pale brown patterns on distal margin; frons convex, with sparse long setae on lateral margins, with four pairs of setae at apex (a pair on upper margin, a pair on middle margin, two pairs on mid-posterior margin) (Fig. 4 D, F). Posterior margin of middle part of frontal pale brown covered. Ocelli evident (Fig. 4 B). Maxillary palpi (Fig. 4 E) three-segmented, cylindrical, and conical at apex; I widest, II longest. Labial palps two-segmented, short; II conical; prementum with two setae on anterior margin, apex with two long setae, lateral sides with two long setae; mentum convex, hexagonal; mentum more slender than prementum, posterior margin with four long setae; submentum with six setae on posterior margin (three on left, three on right). Antennae three-segmented, cylindrical at apex; I longest and widest; III shortest and narrowest (Fig. 4 B, D – G).
Thorax (Fig. 4 A). Pronotum and metanotum with two pairs of elongate setae on anterior margin and a pair of setae on posterior margin. Mesonotum with a pair of setae on anterior, middle, and posterior margin. Anterior and posterior borders of pronotum with brown longitudinal stripes, posterior border of mesonotum and metanotum with a brown longitudinal stripe. Pronotum longest, 1.96 × as long as mesonotum, 1.61 × as long as metanotum, mesonotum shortest.
Legs (Fig. 4 H). Protarsungulus with a strong, long seta on inner side and a strong, short spine on outer side at base. Profemora and protibiae gradually narrowing towards apex; inner margin setal formula of prothoracic leg 3–4 (1–2): 6 (3): 2 (2); outer margin of tibiae with two strong, short spines; outer margin of femora with two setae; trochanter with two short setae. Mesotarsus with a strong, long seta on inner side and a strong, short spine on outer side at base; inner margin setal formula of mesothoracic leg 4: 5 (1): 2 (2); outer margin of tibiae with two spines; outer margin of femora with two spines; outer margin of trochanters with two spines and one seta. Metatarsus with a strong, long seta on inner side and a strong, short spine on outer side at base; inner margin setal formula of metathoracic leg 3–4 (2): 4 (3): 2 (2), outer margin of tibiae with two spines, outer margin of femora with two spines, outer margin of trochanters with two spines and one seta.
Abdomen (Fig. 4 A, C). Not constricted between VIII and IX segments. Approximately 4.20 × as long as thorax; abdominal segments I – VIII subcylindrical, with transverses plicae; ventral side of abdominal segment I with sparse setae on anterior and lateral margins, with four setae on posterior margin (two on left, two on right); ventral side of abdominal segments II – VIII with three pairs of setae on anterior, middle, and posterior margin of lateral margins, respectively. Last segment conical, 0.87 × as long as VIII, distinctly narrower than VIII; surface of convex disc with sparse long setae in ventral view, with a row of short spines on each side (six spines each on left and right); last segment dorsally flattened; urogomphi inconspicuous and apex truncated, with two short spines (Fig. 4 I – K).
Spiracles (Fig. 4 C). Mesothoracic spiracles are almost twice size of abdominal segment I spiracles; lateral margins of abdominal segments I – VIII and mesothorax each with a pair of oval spiracles, abdominal segment I spiracles largest, abdominal segments I – VIII spiracles gradually shrinking.
description: Published as part of Ji, Bao-Yue, Guo, Tong-Yang, Gu, Mei-Chang, Ren, Guo-Dong & Li, Xiu-Min, 2024, Description of five larvae of the genus Gnaptorina Reitter, 1887 from Xizang, China (Coleoptera, Tenebrionidae, Blaptinae), with molecular species delimitation and diagnoses, pp. 295-314 in ZooKeys 1209 on pages 295-314, DOI: 10.3897/zookeys.1209.124184