Gnaptorina (Hesperoptorina)

Shi, Ai-Min, 2013, Three new species of Gnaptorina Reitter (Coleoptera, Tenebrionidae: Blaptini) from Tibet, China, Zootaxa 3637 (4), pp. 462-471 : 463-464

Key to the known species of the Gnaptorina (Hesperoptorina)

1. At least anterior 1/2 (sometimes whole) of outer margin of epipleura visible from above............................. 2

- Less than anterior 1/2 of outer margin of epipleura visible from above............................................ 7

2. Protibiae only with upper spur at apical margin, lower spur absent............................................... 3

- Protibiae with 2 spurs at apical margin, lower spur fine and pointed.............................................. 4

3. Maximum of width of pronotum in anterior 1/3. Propleura not depressed along outer margin, with fine longitudinal rugosity. Intercoxal process steeply sloping behind procoxae. Outer margin of epipleura visible in dorsal view in anterior 2/3and at apex.................................................................................... G. brucei Blair, 1923

- Maximum of width of pronotum in middle. Propleura weakly depressed along outer margin, with thick longitudinal wrinkles and very sparse granules. Intercoxal process obliquely sloping behind procoxae. More than anterior 2/3, sometimes whole, of

epipleural carina visible from above........................................ G. himalayana Shi, Ren & Merkl, 2007 4. Maximum of width of pronotum in middle.................................................................. 5

- Maximum of width of pronotum before middle.............................................................. 6

5. Antennae short, reaching posterior 1/4 of pronotum when posteriorly extended. Anterior margin of pronotum deeply sinuate. Elytral surface between epipleura and sutural margin with two rows of tubercles, dense granules and sparse irregular tubercles......................................................................... G. pilifera Shi, Ren & Merkl, 2007

- Antennae long, reaching pronotal base when posteriorly extended. Anterior margin of pronotum weakly sinuate. Elytral surface between epipleura and sutural margin with sparse fine punctation and dense irregular wrinkles............................................................................................... G. globithoracalis Shi et al., 2007

6. Genal margin arcuately converging before eyes. Prosternum steeply sloping before procoxae. Maximum of width of elytra in middle. At least anterior 1/2, sometimes whole, of epipleural carina visible from above.... G. nigra Shi, Ren & Merkl, 2007

- Genal margin parallel before eyes. Prosternum gently sloping before procoxae. Maximum of width of elytra before middle. More than anterior 1/2 of outer margin of epipleura visible from above......................... G.. medvedevi , sp. nov.

7. Epipleural carina visible from above only in anterior 1/3....................................................... 8

- More than anterior 1/3 of outer margin of epipleura visible from above.......................................... 10

8. Genal margin arcuately converging before eyes. Maximum of width of pronotum in middle. Maximum of width of elytra before middle. Antennae reaching posterior 1/4 of pronotum when posteriorly extended. Protibiae only with upper spur at apical margin, lower spur absent.............................................. G. compressa Shi, Ren & Merkl, 2007

- Genal margin parallel before eyes. Maximum of width of pronotum before middle. Maximum of width of elytra in or behind middle.............................................................................................. 9

9. Anterior margin of pronotum straight. Lateral margins of pronotum arcuately convex in anterior 1/3, shallowly arcuately emarginate in basal 1/3. Pronotal surface without impunctate spots. Maximum of width of elytra behind middle............................................................................................... G. tishkovi Medvedev, 1998

- Anterior margin of pronotum weakly sinuate. Lateral margins of pronotum arcuately convex in anterior half, shallowly arcuately emarginate in basal half. Pronotum with 2 vaguely defined impunctate spots at disc center. Maximum of width of elytra in middle...................................................................... G. sikkimensis Kaszab, 1965

10. Maximum of width of pronotum behind middle. Protibiae with 2 spurs at apical margin, lower spur fine and pointed. Antennae reaching posterior 1/4 of pronotum when posteriorly extended. Maximum of width of elytra before middle............................................................................................. G. dongdashanensis , sp. nov.

- Maximum of width of pronotum in or before middle. Protibiae only with upper spur at apical margin, lower spur absent... 11

11. Genal margin arcuately converging before eyes. Eyes not protruding beyond contour of head. Antennae short, reaching posterior 1/4 of pronotum when posteriorly extended. Anterior margin of pronotum straight, not bordered............................................................................................. G. kangmar Shi, Ren & Merkl, 2007

- Genal margin parallel before eyes. Eyes slightly protruding beyond contour of head. Antennae long, reaching nearly as far as pronotal base when posteriorly extended. Anterior margin of pronotum weakly sinuate, bordered laterally.................................................................................................. G. cuonaensis , sp. nov.