. Diptera Brachycera. Brachycera. 370 coifOPiD^. little curved downwards, in the manner typical oE ConopiDjE ; six- segmented ; 6th segment very long and narrow in 5 ; genitalia in (S conspicuous and complicated *, in $ very elongate, sub- cylindrical, somewhat like those of Tipttlid^ in general appearance. Legs long, slender, simple, practically bare ; tarsi as long as or longer than tibiae; hind legs much longer than the others ; hind femora slightly but obviously dilated from beyond the base. Winr/s cuneiform at base; auxiliary vein extremely short, sub- costal cross-vein present, though so
. Diptera Brachycera. Brachycera. 370 coifOPiD^. little curved downwards, in the manner typical oE ConopiDjE ; six- segmented ; 6th segment very long and narrow in 5 ; genitalia in (S conspicuous and complicated *, in $ very elongate, sub- cylindrical, somewhat like those of Tipttlid^ in general appearance. Legs long, slender, simple, practically bare ; tarsi as long as or longer than tibiae; hind legs much longer than the others ; hind femora slightly but obviously dilated from beyond the base. Winr/s cuneiform at base; auxiliary vein extremely short, sub- costal cross-vein present, though sometimes rudimentary; 1st posterior cell closed well before the wing-border, elongate; anterior. Fig. 78.—Stylogaster orientalis, sp. nov. cross-vein considerably beyond middle of discal cell ; the latter is very long and very narrow at the base; 2ikI basal cell short, less than half as long as 1st; anal cell very short, shorter than 2nd basal; 6th vein distinct to wing-border (in some New V\"orld species it is shortened) ; 7th vein rudimentary or absent ; squamae obsolete. * In tlie African species, S. complexa, Big., the c? genitalia are complex and conspicuous, protected by a large sheath (like that found in Connps) on the 5th segment. There is a large bowl-sliaped ventral plate, narrowed at the base; a pair of long, slender, horny, fingei--like processes slightly curved ; a smaller pair of clavate processes behind them ; and a longer, pointed, median organ witii a few bristly hairs at the tip ; all these parts are pale yellow and practically bare, except the ventral plate, wliich bears short, soft, pale yellow hairs on the imder side. In a North American species of uncertain identity the genital parts are different, though apparently of the same general plan, but the condition of the specimen precludes any Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance
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Photo credit: © Paul Fearn / Alamy / Afripics
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
