Agnaptoria amdoensis G. Medvedev, 2006

Zhu, Xi-Chao & Ren, Guo-Dong, 2014, The larvae of Gnaptorina felicitana and Agnaptoria amdoensis of the tribe Blaptini from China (Coleoptera: Tenebrionidae), Zoological Systematics 39 (2), pp. 275-282 : 277-279

3.2 Agnaptoria amdoensis G. Medvedev, 2006 ( Figs 15–28 )

Body elongate cylindrical, maize-yellow, shiny. Body wall ossifying. The anterior and posterior border of the first tergite and the posterior borders of 2–11 tergites covered with dark brown platbands, on which blanketed with fine longitudinal grains, and other part of the 1–11 tergites with grainy shallow wrinkles. There are 2 irregular piebalds on the two sides of back of first segment. Median line is obvious at the first 5 segments. Besides the last segment, each tergite has 4 pairs of long hairs, of which 2 pairs are at the anterior section, and 2 other pairs are at the posterior section ( Fig. 15 ).

Clypeus center with 4 hairs, which are inverted trapezoidal arrangement. Epicranial stem Y-shaped. The center of anterior rim of frons with 1 pair of hairs. Vertex with 4 hairs, of which 2 are at the apexes of epicranial stem, and 2 are at the post- median section of head. The sides of head with sparse hairs. Ocelli absent ( Fig. 16 ). Antennae 3-segmented; first

© Zoological Systematics, 39(2): 275–282 and second segments are almost equal in length; the first segment cylindric; the terminal of the second segment expands to clavate, and the sensation circle at apex of second segment C-shaped ( Fig. 17 ); third segment cylinder, obviously short, with 1 long hair at peak; basis of antennal process with 4 long hairs. Labrum slightly concave at anterior margin, with 6 thorn-like hairs at the back center, and 2 center setae and 6 lateral periphiral setae at anterior rim ( Fig. 18 ). Epipharynx with sparse lateral periphiral setae; sting area without short thorn-like processes, but 2 basal thorns; there are 4 small mastoids between the basal thorns, and 6 upon them, which are inverted trapezoidal arrangement. The center of the

© Zoological Systematics, 39(2): 275–282 connected section between epipharynx and clypeus with 2 highly ossified triangular torma ( Fig. 19 ). Three hairs on the basal membrane of mandibles, and 2 on the crest. Molar with 2 leaf-teeth, deeply concave at upper part, irregularly embossed at middle, and flat at base ( Fig. 20 ). Sclerome nearly pentagon, with 2 processus angularis ( Fig. 21 ). Ligula with 2 long hairs at apical part; prementum and submentum with 4 long hairs, and mentum with 6 long hairs ( Fig. 22 ). Labial palp 2 segments, with 2 hairs each first segment. Maxillary palp 3-segmented, with 1 hair at base of first segment, and also 1 hair respectively at interior and lateral sides of the second segment ( Fig. 23 ).

Foreleg thicker than meso- and metaleg. All the tarsus differentiate into highly ossified tarsungulus and weakly ossified base two part. The interior and lateral sides of protarsus with 1 short thorn-like process respectively; meso- and metatarsus with 1 short thorn-like process at lateral sides, and 1 long hair at interior sides. Inner margin hairs of each segment pectinated. The inner margin hairs formula of foreleg is 3(2): 4–5(2): 2(2); center of lateral sides of tibiae with 2 short hairs; lateral sides of femora with 2 hairs; trochanters with 3 hairs at middle of lateral sides ( Fig. 24 ). The inner margin hairs formula of meso- and metaleg are 3(2): 4–5(1): 2(2); center of lateral sides of tibiae with 2 short thorn-like processes, and also 2 long hairs at upper part; lateral sides of femora with 2 short thorn-like processes, and 3 long hairs; lateral sides of trochanters with 3 long hairs, which are triangle arrangement ( Fig. 25 ). Ninth abdominal segment hat shaped, with rounded sides, and its width is almost equal to its length, and 1/3 part at basal contracts to base straightly; its back with 4 long hairs, and 2 short thorn-like hairs each side; with sparse long hairs at its venter. Urogomphi short, coniform, and curved upward slightly; postmedian of its back scrobicula. There are 2 thorn-like processes on sides of the terminal of urogomphi and 2 long hairs at its venter ( Figs 26–28 ).

Larval material examined. Five larvae, Gande , Shanggongma , Qinghai (33°52′N, 99°50′E; elev. 4 164 m), 19 July 2012, collected by Guo-Dong Ren and Xi-Chao Zhu.

Key to known larval species of Gnaptorina and Agnaptoria from China

1. Ninth abdominal segment hat shaped, with 2 short thorn-like hairs each side; ocelli absent ( Agnaptoria Reitter ).................................. .................................................................................................................................................................... A. amdoensis G. Medvedev Ninth abdominal segment triangular, with 3–6 short thorn-like hairs each side; ocelli obvious ( Gnaptorina Reitter ) ..........................2

2. Five ocelli present; mentum with 4 long hairs, submentum with 5 long hairs .................................................. G. cylindricollis Reitter Four ocelli present; mentum with 10 long hairs, submentum with 10 long hairs.................................................... G. felicitana Reitter

Funding This research was supported by the National Natural Science Foundation Project of China (31093430) and the Ministry of Education Doctoral Fund Project of China (2011–2013).

Figures

Figs 15–28. Characteristics of Agnaptoria amdoensis G. Medvedev. 15. Larva. 16. Head. 17. Sensation circle of antenna. 18. Labrum. 19. Epipharynx. 20. Right mandible. 21. Sclerome. 22. Labium. 23. Maxillary palp. 24. Foreleg. 25. Mesoleg and metaleg. 26. Urogomphi in anterior view. 27–28. Ninth abdominal segment. 15–16, 18, 20a, 21, 28. Dorsal view. 20b. Ventral view. 24–25. Posterior view. 26. Anterior view. 27. Lateral view. Scale bars = 1mm.