. Bulletin of the British Museum (Natural History) Entom Supp. 58 MORPHOLOGY AND TAXONOMY OF ADULT MALES 68-91 (average 78) u. long and 1-79-2-17 (average 1 94) times as wide (width 137-163, average 150 u.) ; with 1-2 (average 1-7) Scutellum 57-68 (average 64) \i long and 160-171 (average 166) [x wide, the ratio being 1 : 1-8-2-2 (average 19) ; not tubular ; without setae. Post- notum with anterior margin irregular, not overlapped by the metathoracic fold ; postnotal apophysis and postalare well developed, the latter densely reticulated distally. Mesopost- phragma small, with moderately d
. Bulletin of the British Museum (Natural History) Entom Supp. 58 MORPHOLOGY AND TAXONOMY OF ADULT MALES 68-91 (average 78) u. long and 1-79-2-17 (average 1 94) times as wide (width 137-163, average 150 u.) ; with 1-2 (average 1-7) Scutellum 57-68 (average 64) \i long and 160-171 (average 166) [x wide, the ratio being 1 : 1-8-2-2 (average 19) ; not tubular ; without setae. Post- notum with anterior margin irregular, not overlapped by the metathoracic fold ; postnotal apophysis and postalare well developed, the latter densely reticulated distally. Mesopost- phragma small, with moderately deep emargination. Mesoplenron. Mesoplenral ridge strong, not interrupted above coxal articulation ; pleural apophysis and pleural wing process well developed, latter connected with episternum by a narrow basalare. Subalare small. Epi- sternum not reticulated ; subepistemal ridge well developed, but below membranous cleft in- distinct and only marked by a band of dark sclerotization. Epimeron small. Later opleurite partlv bounded anteriorly by an extension from marginal ridge. Basisternum large, about 210 [z wide and 151 [i. long, 1-7-2-2 (average 1 -9) times longer than membranous area of scutum ; with strong median ridge and bounded by strong marginal and precoxal ridges ; without setae. Furca well developed. Mesothoracic spiracle with well developed peritreme ; postmesospiracular setae absent. Tegula small, membranous bulge with a small weak sclerite posteriorly and 0-4 (average 1-9) Third axillary wing sclerite with a small ventral projection at its base. Additional sclerite well defined. Antemetaspiracular setae absent. Metathorax. Metanotum with anterior margin desclerotized medially ; sitspensorial sclerites absent ; a small, additional sclerite sometimes present anterior to postnotum. Postnotum consisting of a transverse sclerite on each side. Metatergal setae : occasionally one on each side. Pleural ridge reduced, extending only for a short distance above
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