. Bulletin of the British Museum (Natural History) Entom Supp. go MORPHOLOGY AND TAXONOMY OF ADULT MALES width, varying from 17 to 25 (x ; with 22-25 (average 24), 22-30 (average 25), 22-34 (average 28), 20-28 (average 24), 17-27 (average 21) and 15-21 (average 17) , respectively, and occasionally each with one or two ; antennal bristles on segments VIII-IX distinctly thicker than Segment X : terminal part not constricted ; 76-97 (average 90) [i. long and 42-46 (average 43) \x wide ; carrying 9-16 (average 13) , 2 capitate subapical setae and 5 antennal bristles of which the
. Bulletin of the British Museum (Natural History) Entom Supp. go MORPHOLOGY AND TAXONOMY OF ADULT MALES width, varying from 17 to 25 (x ; with 22-25 (average 24), 22-30 (average 25), 22-34 (average 28), 20-28 (average 24), 17-27 (average 21) and 15-21 (average 17) , respectively, and occasionally each with one or two ; antennal bristles on segments VIII-IX distinctly thicker than Segment X : terminal part not constricted ; 76-97 (average 90) [i. long and 42-46 (average 43) \x wide ; carrying 9-16 (average 13) , 2 capitate subapical setae and 5 antennal bristles of which the 3 long ones are less than half as long as the segment and the 2 shorter ones not distinctly different from the ; with 2 sensilla basiconica ventrally, one near apex and the other more proximal. Thorax 562-635 (average 600) \i long. Prothorax. Pronotal ridge strong, but medially interrupted by weak sclerotization. Lateral pronotal sclerites small, without setae. Medial pronotal setae : occasionally one or two Post-tergites very small, without striations and without setae. Pleural structures typical of the family. Sternum with transverse ridge strong, median ridge reduced to a short basal stalk and triangular sclerite bearing numerous small projections. Anteprosternal setae absent ; prosternal setae : 5-11 (average 7-8) and 0-2 (average 0-9) , the setae not occurring in front of spiracles. Mesothorax. Mesoprephragma with shallow emargination. Prescutum about twice as wide as long (average 171 and 90 jx respectively) ; anterior margin almost straight ; laterally bounded by the prescutal ridges and posteriorly by the prescutal suture ; slightly more heavily sclerotized medially but not reticulated. Scutum. Median membranous area subrectangular ; 61-80 (average 70) y. long and 2-10-2-88 (average 2-51) times as wide (width 156-179, average 171 (z); with 3-15 (average 6-6) and 7-15 (average 12) Scutellum 53-80 (average 70) (x long and 144-175 (average 163)
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