Apalochrini, Mulsant & Rey, 1867

Tshernyshev, Sergei E., 2021, Pectotibialis paghmanensis Tshernyshev gen. nov. - a new genus and species of soft-winged flower beetle (Coleoptera, Cleroidea, Malachiidae) from Afghanistan, European Journal of Taxonomy 775, pp. 1-14 : 8-10

Key to the genera of the tribe Apalochrini with simple not modified 1 st, 3 rd and 4 th antennomeres

1. Male special structures are indistinct, antennae filiform or flabellate .....................................................2

– Male special structures distinct and located on head, antennae, pronotum, metathorax, sternites or legs ..........................................................................................................................................................10

2. Second segment of anterior tarsi lacking a comb above, elytra with green or blue metallic lustre .............................................................................................................. Apalochrus Erichson, 1840

– Second segment of anterior tarsi with a comb above, elytra entirely black, sometimes with metallic lustre...........................................................................................................................................................3

3. Body of staphylinoid shape, narrow, black, lacking metallic lustre, elytra strongly shortened and not covering abdomen, wings reduced, antennae filiform ............................. Paratinoides Medvedev, 1964

– Body typical of Malachiidae , elytra completely covering the abdomen .................................................4

4. Anterior tibiae simple, not widened or impressed, antennae flabellate of filiform .................................5

– Anterior tibiae widened or impressed distally, antennae flabellate .........................................................9

5. Antennae filiform ......................................................................................................................................6

– Antennae flabellate ...................................................................................................................................7

6. Antennomeres simple, not widened and slightly flattened, lacking impressions or grooves, anterior femora simple, lacking emarginations; surface of the body covered with long erect and short adpressed black pubescence ......................................................................................... Protapalochrus Evers, 1987

– Intermediate3 rdand 6 thantennomereswidened,dorsalsideof5 th –10 thantennomeressulcateinmiddle,anterior femora with oval emargination in apical half covered with white pubescence; surface of the body covered with short semi-erect and adpressed black-brown pubescence ...... Acroapalochrus Tshernyshev, 2020

7. Pronotum simple, lacking longitudinal grooves .............................. Pectapalochrus Tshernyshev, 2016

– Pronotum bisulcate in middle ........................................................................... Airomalachius Pic, 1950

9. Anterior tibiae compressed and widened in apical half, intermediate tibiae impressed and flattened in outer side with weakly widened and curved apices, pronotum convex and narrowly depressed at base, elytra and pronotum uniformly dark with green or blue metallic lustre and covered with long erect grey hairs ................................................................................................... Mesapalochrus Tshernyshev, 2020

– Anterior tibiae slightly widened anteriorly and weakly impressed dorsally, intermediate tibiae simple, not widened and not flattened, pronotum convex, not depressed at base, orange with longitudinal greenbronze stripe in a middle, elytra orange-yellow, each with two bronze metallic oval-triangular spots, surface covered with short erect fine white pubescence ................................ Nudopectinus Evers, 1987

10. Anterior tibiae simple, not widened or emarginate, male special structure is located in apical half of the pronotum as transverse fissure with elevate side and protuberance behind, anterior tarsi with a comb above the 2 nd tarsomere, posterior tibiae slightly but distinctly swollen in basal fourth .................................................................................................. Simoderus Abeille de Perrin, 1891

– Anterior tibiae slightly but distinctly widened, simple or emarginate, pronotum simple or with protruding process in anterior side, male special structures located in femora or tibiae, head, metathorax or abdominal ventrites; anterior tarsi with a comb above 2 nd tarsomere or lacking it ..........................11

11. Anterior tibiae simple, not emarginate, anterior tarsi with a comb above 2 nd tarsomere ......................15

– Anterior tibiae emarginate at apical part, anterior tarsi with a comb above 2 nd tarsomere or lacking it ...............................................................................................................................................................12

12. Head with emarginations and protuberances, antennae serrate or flabellate, abdomen simple ............13

– Head simple, lacking emarginations and protuberances, antennae filiform ..........................................14

13. Pronotum with narrow horn-like process protruding over the head, antennae serrate .............................................................................................................. Troglolaius Wittmer, 1952

– Pronotum simple, antennae flabellate ......................................................... Trogloapalochrus Pic, 1919

14. 4 th and 5 th abdominal ventrites modified and with thorn-like process in the middle ............................15

– 4 th and 5 th abdominal ventrites simple, lacking process .........................................................................16

15. Intermediate tibiae slightly widened and swollen, with the inner side emarginate at apical quarter, trochanters of anterior legs simple .......................................................... Opisthapalochrus Evers, 1987

– Intermediate tibiae simple, not widened or emarginate, trochanters of anterior legs dentate .............................................................................................................. Spinapalochrus Pic, 1919

16. 2 nd tarsomere in anterior legs with a comb above ..................................................................................17

– 2 nd tarsomere in anterior legs lacking a comb above, antennae serrate, anterior tibiae evenly emarginate, intermediate tibiae widened and narrowly emarginate, with pheromone glands .................................................................. Mesopezus Jacobson, 1911 (= Epitinus Evers, 1987 )

17. Eyes extremely large, antennae flabellate ..............................................................................................18

– Eyes simple, not large .............................................................................................................................19

18. Metathorax swollen with appendage in the middle, elytral apices impressed near suture, anterior and intermediate femora swollen, intermediate tibia slightly widened posteriorly and possessing pheromone glands ............................................................................................... Mimapalochrus Tshernyshev, 2015

– Metathorax weakly swollen, lacking appendage in a middle, elytral apices not impressed, simple, all legs simple, not widened or curved, without glands ....................... Oculapalochrus Tshernyshev, 2015

19. Metathorax strongly swollen and possessing gladiate or rudimentary appendage with hairs in the middle ......................................................................................................................................................20

– Metathorax slightly swollen, lacking appendage or hairs .....................................................................18

20. Anterior tibiae slightly emarginate, intermediate tibiae swollen with apical margin simple and lacking setae, pronotum and head simple, lacking relief sculpture, metathorax possesses gladiate appendage in the middle directed to intermediate coxae, elytra completely covering the abdomen ......................................................... Dromanthomorphus Pic, 1921 (= Pectinus Evers, 1987 )

– Anterior tibiae deeply emarginate in apical quarter, apical margin of anterior and intermediate legs surrounded with pectinate setae similar to that in tarsal comb; intermediate tibiae slightly widened, not stout, with longitudinal groove within, pronotum with protuberance in basal half, forehead bituberculate, metathorax slightly swollen and impressed in the middle with two appendages, one lamellate transverse above, and the other appendage longitudinal with vertical round semi-transparent lamellate apex below, elytra not covering two apical segments of the abdomen ................ Pectotibialis Tshernyshev gen. nov.

21. Anterior tibiae strongly modified, deeply emarginated with lamellate processes, inner spurs of the anterior legs modified, antenna flabellate or filiform .............................................................................22

– Anterior tibiae slightly widened or weakly emarginate, simple, spurs short and simple, antenna filiform .....................................................................................................................................................23

22. 1 st tarsomere in anterior legs enlarged and compressed, leaf-shaped, dorsally with a row of golden hairs forming a tuft, 2 nd tarsomere very short, almost completely covered by the vane-shape longitudinal comb, anterior tibiae strongly emarginate, with a stretched apex bearing enlarged hook-like spur, intermediate tibiae strongly widened and modified, emarginate within and possessing a row of long hairs inside the emargination, antennae flabellate ................................. Hapalochrops Bourgeois, 1908

– 1 st tarsomere in anterior legs slightly enlarged and swollen, round-quadrate, 2 nd tarsomere with a simple short comb above, outer spur in anterior tibiae long and strong, thorn-like, intermediate tibiae with deep emargination in apical quarter, and a long narrow appendage bearing hair tuft in apex of inner side of the emargination, antennae filiform ........................................................ Tibipectinus Tshernyshev, 2020

23. Anterior tibiae weakly widened distally, not emarginate, intermediate tibiae widened in apical half and sulcate in the middle of inner side, lacking emarginations ................. Protopectinus Tshernyshev, 2020

– Anterior tibiae weakly emarginate in dorsal or ventral side, intermediate tibiae stout and emarginate or thin and not emarginate ..........................................................................................................................24

24. Anterior tibiae emarginate in dorsal side, intermediate tibiae strongly dilate and convex, with triangular perpendicular process in a middle of inner side and strongly emarginate beneath it ..................................................................................................................... Hadrocnemus Kraatz, 1895

– Anterior tibiae emarginate in ventral side, intermediate tibiae not widened and with a row of long erect thin hairs on inner side ................................................................................... Setapalochrus Evers, 1988