Aglyptinus, Cockerell, 1906

Peck, Stewart B. & Cook, Joyce, 2014, A review of the small carrion beetles and the round fungus beetles of the West Indies (Coleoptera: Leiodidae), with descriptions of two new genera and 61 new species., Insecta Mundi 2014 (397), pp. 1-76 : 41-43

Key to species of male Aglyptinus of the West Indies

1. Occurs in the Bahamas or Greater Antilles ................................................................................. 2

— Occurs in the Lesser Antilles ...................................................................................................... 17

2(1). Occurs in Bahamas; pale maculae at elytral apices; aedeagus ( Fig. 70 ) roundly arched dorsoventrally, sinuate before apex ............................ A. bahamensis Peck and Cook , n.sp.

— Occurs in Greater Antilles; elytra usually without pale maculae at elytral apices; aedeagus not roundly arched dorsoventrally and sinuate before apex ........................................................... 3

3(2). Occurs on Cuba.............................................................................................................................. 4

— Occurs elsewhere in the Greater Antilles ..................................................................................... 8

4(3). Small, length usually less than 1.5 mm; eyes and wings reduced ............................................... 5

— Larger, length usually greater than 1.5 mm; eyes large, wings fully developed ........................ 6

5(4). Eyes and wings strongly reduced; aedeagus ( Fig. 78, 79 ) short and broad, dorsoventrally angulate near base; parameres absent ............................................. A. minutus Peck and Cook , n.sp.

— Eyes and wings slightly reduced; aedeagus ( Fig. 72, 73 ) elongate, slender, evenly curved dorsoventrally; parameres present ................................ A. biseriatus Peck and Cook , n.sp.

6(4). Antennae long, reaching base of pronotum; aedeagus ( Fig. 74, 75 ) strongly arched, apex abruptly narrowed, downturned ................................................. A. capitaneus Peck and Cook , n.sp.

— Antennae shorter, not reaching base of pronotum; aedeagus weakly to moderately arched, apex not downturned .......................................................................................................................... 7

7(6). Aedeagus ( Fig. 80, 81 ) moderately, evenly arched dorsoventrally; apex rounded in dorsal view; extreme tip of apex upturned, sinuate in lateral view ..... A. sinuatus Peck and Cook , n.sp.

— Aedeagus ( Fig. 76, 77 ) weakly arched dorsoventrally, depressed before apex; apex acute in dorsal view ......................................................................... A. fortipunctatus Peck and Cook , n.sp.

8(3). Occurs on Jamaica......................................................................................................................... 9

— Occurs elsewhere in the Greater Antilles ................................................................................... 13

9(8). Eyes strongly reduced, wings strongly reduced; aedeagus ( Fig. 90, 91 ) evenly arched dorsoventrally, abruptly narrowed apically in dorsal view .................. A. parvoculus Peck and Cook , n.sp.

— Eyes not strongly reduced, wings at least one-half narmal length; aedeagus not evenly arched dorsoventrally and abruptly narrowed apically in dorsal view .............................................. 10

10(9). Aedeagus ( Fig. 84, 85 ) short and broad, weakly angled dorsoventrally; in dorsal view, widened before apex ................................................................................................ A. jamaicensis Peck

— Aedeagus elongate, strongly arched dorsoventrally ................................................................... 11

11(10). Yellowish macula at apex of each elytron; aedeagus ( Fig. 88, 89 ) strongly arched dorsoventrally; apex narrowly rounded in dorsal view ............................. A. maculus Peck and Cook , n.sp.

— Elytra not maculate; aedeagal apex acute in dorsal view .......................................................... 12

12(11). Aedeagus ( Fig. 82, 83 ) moderately arched dorsoventrally, depressed before down-turned apex; apex broad in dorsal view ....................................................................... A. dimorphicus Peck

— Aedeagus ( Fig. 86, 87 ) strongly arched dorsoventrally, apex upturned; apex narrow in dorsal view ............................................................................... A. hemipterus Peck and Cook , n.sp.

13(8). Male metasternum with short median longitudinal carina in posterior half. Occurs on Puerto Rico and the Virgin Islands................................................................. A. puertoricensis Peck

— Male metasternum not carinate. Occurs on Hispaniola ............................................................ 14

14(13). Eyes strongly reduced; wings strongly reduced; maxillary palps elongate, penultimate palpomere broadly expanded; aedeagus ( Fig. 98, 99 ) with parameres absent .............................................. ................................................................................................ A. longipalpus Peck and Cook

— Eyes and wings not reduced; maxillary palps not elongate, penultimate palpomere not broadly expanded; parameres present ................................................................................................... 15

15(14). Aedeagus ( Fig. 94, 95 ) strongly arched dorsoventrally, angulate at middle, apex not drawn out in lateral view ..................................................................... A. angulatus Peck and Cook , n.sp.

— Aedeagus roundly arched dorsoventrally, apex drawn out in lateral view ............................... 16

16(15). Aedeagal apex in dorsal view ( Fig. 97 ) acute ....................... A. grandis Peck and Cook , n.sp.

— Aedeagal apex in dorsal view ( Fig. 101 ) broadly rounded .............................................................. ................................................................................. A. hispaniolensis Peck and Cook , n.sp.

17(1). Occurs on Guadeloupe................................................................................................................. 18

— Occurs elsewhere in the Lesser Antilles ..................................................................................... 19

18(17). Minute species, total length 1.2 mm; head and pronotum impunctate (after Hlisnikovsky 1964). Aedeagus unknown ...................................................................... A. guadelupensis Portevin

— Larger species, total length 1.5–2.0 mm; head and pronotum finely, sparsely punctate. Aedeagus ( Fig. 102, 103 ) roundly arched dorsoventrally; apex rounded in dorsal view ............................ ........................................................................................................... A. kaszabi Hlisnikovsky

19(17). Occurs on Dominica. Aedeagus ( Fig. 104, 105 ) strongly, roundly arched dorsoventrally, with depression before apex; apex truncate in dorsal view .... A. dominica Peck and Cook , n.sp.

— Occurs elsewhere in the Lesser Antilles. Aedeagal apex not truncate ...................................... 20

20(19). Occurs on Martinique. Aedeagus ( Fig. 106, 107 ) evenly, roundly curved dorsoventrally; flattened and narrowly rounded at apex .............................. A. martiniquensis Peck and Cook , n.sp.

— Occurs elsewhere in the Lesser Antilles. Aedeagal apices not evenly, roundly curved dorsoventrally; not flattened and narrowly rounded at apex ........................................................................... 21

21(20). Occurs on St. Lucia..................................................................................................................... 22

— Occurs on St. Vincent or Grenada.............................................................................................. 23

22(21). Minute, length 1.1–1.2 mm; aedeagus ( Fig. 110, 111 ) short and broad, angulate dorsoventrally at basal third; not constricted before apex .............................. A. parvus Peck and Cook , n.sp.

— Larger, length more than 1.4 mm; aedeagus ( Fig. 108, 109 ) roundly arched dorsoventrally; in dorsal view, constricted before apex ...................................... A. luciae Peck and Cook , n.sp.

23(21). Occurs on St. Vincent. Aedeagus ( Fig. 114, 115 ) elongate, slender, moderately curved dorsoventrally, with apical third curved upward ............ A. vincentii Peck and Cook , n.sp.

— Occurs on Grenada. Aedeagus ( Fig. 112, 113 ) shorter, more strongly, evenly curved dorsoventrally; apical third not curved upward ................................. A. grenadensis Peck and Cook , n.sp.

Figures

Figures 70–91. Aedeagi, lateral and dorsal apical views, of Aglyptinus. 70, 71) A. bahamensis. 72, 73) A. biseriatus. 74, 75) A. capitaneus. 76, 77) A. fortipunctatus. 78, 79) A. minutus. 80, 81) A. sinuatus. 82, 83) A. dimorphicus (from Peck 1972). 84, 85) A. jamaicensis (from Peck 1972). 86, 87) A. hemipterus. 88, 89) A. maculus. 90, 91) A. parvoculus. Scale line = 0.30 mm, Fig. 70–73, 76–85, 88, 89; 0.35 mm, Fig. 74, 75, 90, 91; 0.45 mm, Fig. 86, 87.

Figures 92–115. Aedeagi, lateral and dorsal apical views, of Aglyptinus. 92, 93) A. puertoricensis (from Peck 1972). 94, 95) A. angulatus. 96, 97) A. grandis. 98, 99) A. longipalpus. 100, 101) A. hispaniolensis. 102, 103) A. kaszabi. 104, 105) A dominica. 106, 107) A. martiniquensis. 108, 109) A. luciae. 110, 111) A. parvus. 112, 113) A. grenadensis. 114, 115) A. vincentii. Scale line = 0.30 mm, Fig. 92-95, 98-115; 0.45 mm, Fig. 96, 97.