278 



SYRPHID^E. 



30. f. 6 ; Mq. ; Lw. ; Ztt. Testacea, an tennis luteis, thoracis disco 

 cinereo, alis limpidis, abdominis segmentorum marginibus posticis nigri- 

 cantibus, pedibus fulvis. Long. 4 ; alar. 8 lin. 



Testaceous. Peristoma very prominent. Mouth piceous. Antennae 

 luteous ; fifth joint pubescent, black, tawny at the base. Disc of the 

 thorax grey above and partly grey beneath. Wings colourless ; veins 

 black, tawny towards the base. Halteres pale lemon-colour. Hind 

 borders of the abdominal segments blackish. Legs tawny ; tarsi black, 

 ferruginous at the base. 



Not common. (E. S. I.) 



2. conica, Pz. ! fn. Ix. 20 (1815?); Mg. ; Mq. 

 Testacea, alis subcinereis, abdominis segmentorum 

 nigris. Long. 4 ; alar. 8 lin. 



Testaceous. Fourth joint of the antennas black, 

 grey ; hind borders of the abdominal segments black. 



Rare. In the British Museum. (E.) 



dorsata? Ztt. 

 us posticis 



Wings slightly 

 Tarsi brown. 



Genus XXIII. RHINGIA. 



RHINGIA, Fb. s. i. ii. 460 (1781); LI.; Pz.; Fin.; Mg. ; St. F. et 

 Srv. ; Mq. ; Lw. ; Ztt. ; Ct. ; Rdn. Conops p., L. ; Shr. Musca p., 

 Dg. Stomoxys p., Gm. 



Epistoma productum, porrectum, conicum, capitis posterioris longitudine. 

 Antennae capitis latitudine conjunctim breviores ; articulus tertius dor- 

 mils ; quintus pubescens. Alee areola subapicali Integra, lobo axillari 

 distincto, venis subcostali et radiali ad marginem disjunctis, vena trans- 

 versa prcebrachiali ante areolae discalis medium locata. 

 Head almost semicircular, somewhat compressed in front ; epistoma 

 slightly impressed, drawn out into a horizontal cone, as long as the rest 

 of the head-, peristoma very narrow. Eyes bare; all the facets small. 

 Labrum narrow, long, thin, curved, trilobed at the tip. Lingua thin, 

 acute, transparent, setiform, almost as long as the labruin. Maxillas 

 slender, setiform, acute, as long as the lingua, longer than the palpi. 

 Palpi filiform, somewhat clavate and hairy at the tips, half the length 

 of the labmm. Labium semicylindrical. Antennae 5 -jointed, porrect, 

 nutant, jointly shorter than the breadth of the head, seated on the 

 epistoma; first and second joints of equal length; first small; second 

 larger, cyathiform ; third conical ; fourth very short, seated on the base 

 of the third; fifth pubescent, setiform. Thorax convex, pubescent; 

 scutellum semicircular. Wings lanceolate, finely pubescent, incumbent 

 and parallel in repose, extending beyond the abdomen; subapical 

 areolet entire ; axillary lobe distinct ; subcostal and radial wins ending 

 separately in the margin ; transverse prcebrachial vein placed before the 



