280 



SYRPHID^l. 



costal and radial veins ending separately in the margin ; transverse pra- 

 brachial vein placed at or beyond the middle of the discal areolet. 



1. cuprea, Spl. e. c.(1763); Edn. ruficornis, Fb.; Esi.; Gm.; Pz.! 

 fn. Ixxvii. 20 ; LI. ; Fin. ; Mg. ; Mq. ; Ztt. ; Gmtl. Nigricans, epi- 

 stomate luteo immaculato, antennarum articulo tertio testaceo, thorace 

 vittis quatuor cinereis, abdomine teneo, epistomate scutello antennarum 

 articulo tertio pedibusque luteis, alis fusco-bimaculatis. Long. 4-5 ; 

 alar. 9-12 lin. 



Black. Head tawny ; crown black. Proboscis piceous. Antennae 

 red, black above ; fourth joint black. Thorax with four grey stripes, 

 beset on each side with black bristles ; scutellum greyish-tawny. Wings 

 pale grey, slightly tawny along the fore border, with two brown spots 

 on the veinlets in the disc. Halteres yellow, with brown knobs. Ab- 

 domen seneous, thickly clothed with short tawny hairs. Legs tawny. 



Generally distributed. The larva feeds on fungi. (E. S. I.) 



Genus XXV. CHEILOSIA. 



CHEILOSIA, Mg. ; Lw. ; Edn. Musca p., L. ; Dg. ; Gm. SyrpJms 

 p., Fb. s. i. ; LI. ; Pz. ; Fin. ; Mg. ; St. F. et Srv. Eristalis p., 

 Fb. s. a. ; LI. ; Ztt. Milesia p., Fb. s. a. Conops p., Spl. 



Frons cribrata vel canaliculata. Epistoma vix elongatmn, ad os promi- 

 nens. Antenna capitis latitudine conjunctim breviores, basi disjunct^; 

 articulus quartus dorsalis, quintus nudus vel pubescens. Alee areolis 

 discali et subapicali margine posteriore fere aqualiter remotis et illi 

 parallelis, areola subapicali Integra, lobo axillari distincto, venis 

 subcostali et radiali ad marginem disjunctis, vena transversa prabra- 

 chiali ante areola discalis medium locata. Abdomen segmentis 5 (vel 6) 

 tantum conspicuis. 



Head semicircular ; front pitted or channelled ; face concave ; epi- 

 stoma but little elongated horizontally, a little compressed beneath the 

 antennae, with a slight tubercle above the peristoma^ro^mm^ towards 

 the mouth, notched in front. Peristoma oval. Eyes hairy. Labrum 

 long, stout, terminating in two lobes which have a spine between them. 

 Lingua attenuate, acute, shorter than the labrum. Maxillae slender, 

 curved, nearly as long as the lingua. Palpi slender, nearly linear, 

 pubescent, slightly pilose, rounded at the tips, as long as the labrum. 

 Labium large, rather long. Antenna 5 -jointed, jointly shorter than the 

 breadth of the head, separated at the base, seated on a slight projection 

 in front ; first and second joints bristly ; first long, clavate, obliquely 

 truncate ; second subcyathiform, shorter and broader than the first ; 

 third large, elliptical, velvety ; fourth very minute, seated on the third 

 near the base ; fifth setiform, pubescent, bare at the tip, of moderate 



