. Bulletin of the British Museum (Natural History) Entom Supp. 86 MORPHOLOGY AND TAXONOMY OF ADULT MALES Preoral ridge absent. Tendon-like apodeme short. Cranial apophysis long ; apex truncate, occasionally bifurcate, extending to around the level of the anterior margin of the ventral eyes. Mouth opening irregular. Anterior tentorial pits present, situated anterolateral to mouth opening. Antennae io-segmented, filiform ; 729-901 (average 822) y. long, longer than half body length (ratio 1 : 1-28-1-56, average 139), longer than posterior leg (ratio 1 : 1-36—1-40, average 1-38) and longer t
. Bulletin of the British Museum (Natural History) Entom Supp. 86 MORPHOLOGY AND TAXONOMY OF ADULT MALES Preoral ridge absent. Tendon-like apodeme short. Cranial apophysis long ; apex truncate, occasionally bifurcate, extending to around the level of the anterior margin of the ventral eyes. Mouth opening irregular. Anterior tentorial pits present, situated anterolateral to mouth opening. Antennae io-segmented, filiform ; 729-901 (average 822) y. long, longer than half body length (ratio 1 : 1-28-1-56, average 139), longer than posterior leg (ratio 1 : 1-36—1-40, average 1-38) and longer than penial sheath (ratio 1 : 4-36-6-02, average 4-87). Scape 36-46 (average 41) u. long and 36-40 (average 38) y. wide, with 3 and occasionally one Pedicel with weak, polygonal, dorsal reticulation ; 42-49 (average 45) y. long and 31-34 (average 33) y. wide; with 5-10 , 1-5 (average 3-6) , and a sensillum placodeum. Segment III somewhat club- shaped, 3-0-3-7 (average 3-3) times longer than wide (68-84, average 75 jx long and 23 \i wide); with 0-2 (average 0-7) and 1-6 (average 3-3) , the latter of medium length, 1-2-1-6 (average 1 4) times longer than width of segment ; with 1 or 2 usual sensilla basiconica. Segments IV-IX cylindrical ; lengths of these segments (in \i) 114-158 (average 131), 105-137 (average 122), 95-137 (average 118), 82-106 (average 97), 67-82 (average 74) and 57-72 (average 63) respectively, widths varying from 15 to 23 u., with segment IX somewhat wider than proximal ones ; with 11-24 (average 18), 13-25 (average 20), 20-30 (average 23), 18-28 (average 22), 13-19 (average 16) and 12-20 (average 16) respectively, but no ; antennal bristles on segments VIII and IX not always distinctly different from Segment X : terminal part not constricted ; 46-61 (average 54) \i long and 19-23 (average 20) [i wide ; carrying 4—14 (average 8) , 3 capitate subapical setae and 5 antennal bristles of which the 3 long ones are
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