. Bulletin of the British Museum (Natural History) Entom Supp. 184 MORPHOLOGY AND TAXONOMY OF ADULT MALES (244) [i. Midcranial ridge well developed and cruciform ; dorsal arm short, joining the lateral and the ventral arms at the apex of the head. Postoccipital ridge laterally bending posteriorly and giving off short, heavily sclerotized extensions anteriorly. Pre- and postocular ridges well separated ; preoral ridge slender. Eyes : Dorsal simple eyes slightly projecting beyond the outer margins of the head in dorsal view ; their corneae 24-27 (26)\l in diameter and separated by 128-137 (134)(
. Bulletin of the British Museum (Natural History) Entom Supp. 184 MORPHOLOGY AND TAXONOMY OF ADULT MALES (244) [i. Midcranial ridge well developed and cruciform ; dorsal arm short, joining the lateral and the ventral arms at the apex of the head. Postoccipital ridge laterally bending posteriorly and giving off short, heavily sclerotized extensions anteriorly. Pre- and postocular ridges well separated ; preoral ridge slender. Eyes : Dorsal simple eyes slightly projecting beyond the outer margins of the head in dorsal view ; their corneae 24-27 (26)\l in diameter and separated by 128-137 (134)(x, 5-0-5-6 (5-3) times their diameter apart. Ventral simple eyes equal to the dorsal in diameter and 37-40 (39) u. apart. Lateral ocelli large, closely attached to post- ocular ridge. Cranial apophysis apically bifurcate. Anterior tentorial arms join the cranial apophysis separately ; tentorial bridge stout. Dorsal head setae 10-14 (11 -8) on each side ; each gena with 4-6 (5-0) genal setae. Ventral head setae : Setae between the ventral eyes absent ; 3-5 (4-1) just anterior to the preocular ridges, forming on both sides a transverse irregular row ; 2-3 (2-5) on each side of the ventral arm of the midcranial ridge. One and sometimes two (av. 1-2) small bodies of unknown homology (X) occur dorsally on each side of the dorsal arm of the midcranial ridge, near the apex of the head. Antennae : Rather moniliform ; 10-segmented ; 625-677 (653)^ long, somewhat shorter than half the length of the body, the ratio being 1 : 2-2-2-4 (2-3). ar*d equal or slightly shorter than the hind legs, the ratio 1 : 1-0-1-2 (it). Scape 52-55 (54)^ long and 55-58 (57)[i wide at base ; with 4-5 (4-5) Pedicel 67-70 (69) (j. long and 49^ wide ; with 3-5 (4-0) , 2—4 (3-0) and a sensillum placodenm. Flagellum : Flagellar segments IV to VII 31-37 (34) \x wide ; segments III and X slightly narrower and segments VIII and IX slightly wider. Segment III club-shaped and longest of all, t
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