. Diptera Brachycera. Brachycera. CHRYSOTOXUM. 297 moderately wide black median stripe whicli is sometimes narrowly orange on each side ; cheeks sometimes pale orange, with an indis- tinct blackish intervening stripe. Proboscis short, black. Occiput black, yellow-dusted, with yellow pubescence on upper part, whitish towards margins and with whitish pubescence on lower part. : dorsum black, with the usual two yellowish-grey median stripes ; side margins ratiier broadly yeJlowisli ; pleurae blackish with a brassy tinge and some yellow pubescence, a yellow spot of the usual kind on mesopl
. Diptera Brachycera. Brachycera. CHRYSOTOXUM. 297 moderately wide black median stripe whicli is sometimes narrowly orange on each side ; cheeks sometimes pale orange, with an indis- tinct blackish intervening stripe. Proboscis short, black. Occiput black, yellow-dusted, with yellow pubescence on upper part, whitish towards margins and with whitish pubescence on lower part. : dorsum black, with the usual two yellowish-grey median stripes ; side margins ratiier broadly yeJlowisli ; pleurae blackish with a brassy tinge and some yellow pubescence, a yellow spot of the usual kind on mesopleuraaiid sternopleura. Scufellum lemon-yellow to rather brownish, with pale yellow to brownish pubescence. Abdomen noininally yellowish ; 1st segment orange- brown : 2nd with an arcuate, transverse, rather narrow black line across middle of segment, the ends not quite reaching hind margin, a short vertical stripe connecting it with a narrow])^ black front margin ; hind margin occupied by a very broad, low, some- what orange-tinged area filling up the remaining surface of the segment. ;3rd segment yellow, a pair of elongate, black,. Fig. G3.— Chrysofoxum haph/ms. Walk, {citronellum, Briin.), c?, thorax and abdomeu. diagonally placed stripes, their inner ends pointed, nearly con- tiguous towards middle of anterior margin,a large orange triangular space oi\ hind margin similar in colour to that of 2nd segment. 4th segment similar to 3rd; otli segment black, with a pair of comparatively large yellow elongate spots placed diagonally, and a large orange-yellow apical spot. Pubescence of abdomen short, yellow, tliH margin with a fringe of short black hairs, anterior corners with yellow pubescence. Venter from orange to yellow, hind margins of segments blaclc. Le(is mainly yellow ; fore coxa) yellowish, posterior pairs brown, with a little concolorous jiubes- cence ; hind femora in cJ sdmetimes l)i-o\\uish apicallv, hind tibiae sometimes with about apical halt' orange or brownish ; h
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
