. Bulletin of the British Museum (Natural History) Entom Supp. II4 MORPHOLOGY AND TAXONOMY OF ADULT MALES Head subcorneal in dorsal view ; in lateral view obliquely elongated dorsoventrally, with anterodorsal bulge pronounced ; length from apex to pronotal ridge 243-277 (average 261) \i, width across genae 247-281 (average 265) jx. Median crest well sclerotized and distinctly poly- gonally reticulated ; with 15-32 (average 24) fleshy and 10-17 (average 13) hair-like dorsal head setae. Midcranial ridge dorsally absent ; ventrally narrow but well defined, reaching ocular sclerite posteriorly, su
. Bulletin of the British Museum (Natural History) Entom Supp. II4 MORPHOLOGY AND TAXONOMY OF ADULT MALES Head subcorneal in dorsal view ; in lateral view obliquely elongated dorsoventrally, with anterodorsal bulge pronounced ; length from apex to pronotal ridge 243-277 (average 261) \i, width across genae 247-281 (average 265) jx. Median crest well sclerotized and distinctly poly- gonally reticulated ; with 15-32 (average 24) fleshy and 10-17 (average 13) hair-like dorsal head setae. Midcranial ridge dorsally absent ; ventrally narrow but well defined, reaching ocular sclerite posteriorly, surrounding area showing distinct polygonal reticulation. Genae large, sclerotized, polygonally reticulated ; each with 14-24 (average 19) fleshy and 6-13 (average 6-9) hair-like genal setae. Eyes : two pairs, subequal ; corneae of dorsal eyes 23-27 (average 25) (x in diameter and 2-7-3-3 (average 3) times as much apart ; those of the ventral eyes 23-30 (average 26) y. in diameter and 1-1-1-5 (average 1-3) times as much apart. Ocellus small. Ocular sclerite well sclerotized and polygonally reticulated throughout. Preocular ridge extend- ing only a short distance below articular process. Postocular ridge well developed dorsally and lateroventrally, but usually weak posteromedially ; below ocellus the ridge usually has a weak anterior branch. Interocular ridge absent. Dorsal ocular setae : 2-8 (average 4-2) and 0-4 (average i-6) on each side. Ventral head setae : 44-60 (average 51) and 8—15 (average 10) , scattered over the ocular sclerite, occasionally with a fleshy seta occurring in front of the sclerite, and with 9-16 (average 13) and 0-1 (average o-6) between and behind the eyes. Preoral ridge present. Tendon-like apodeme long. Cranial apophysis of medium length ; apex bifurcate, sometimes with central bulge, not reaching level of anterior margin of ventral eyes. Mouth opening irregular. Anterior tentorial pits absent. ;g®P^^s£^. Fig. 39. Parthe
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