252 SYRPHID^E. 



V- 



tical scutellum semicircular, somewhat convex, with an undefined edge. 

 Wings lanceolate, diverging, finely pubescent ; subapical areolet entire, 

 narrowed in the middle; axillary lobe distinct; subcostal and radial 

 veins ending separately in the margin ; transverse prcsbrachial vein placed 

 beyond the middle of the discal areolet. Alulae large, double. Halteres 

 covered. Abdomen obconical. Legs stout ; hind femora thick, armed 

 beneath with a large tooth ; hind tibia3 curved. Male. Eyes united. 

 Abdomen almost cylindrical. Fern. Eyes parted. Abdomen nearly oval. 

 The larvse feed on the bulbs of the 



1. clavipes, Fb. s. i. ii. 427. 29 (1781) ; LI.; Mg. ; Mq. ; Ct.! 

 b. e. 98. curvipes, Gm. gravipes, Rsi. Niger, alis subcinereis ; Mas. 

 thorace fulvo-hirto nigro-fasciato, abdomine aureo-hirto; Fcem. tho- 

 race rufo-hirto, abdomine basi incisurisque aureo-hirtis. Long. 8; 

 alar. 12 lin. 



Black. Wings pale grey. Male. Thorax clothed with tawny hairs 

 with the exception of a broad black band. Abdomen clothed with 

 gilded hairs. Fern. Thorax clothed with reddish hairs ; abdomen with 

 gilded hairs at the base and at the sutures. 



Very rare; has been found in Northamptonshire. In the 

 British Museum, and in Mr. Desvignes' collection. (E.) 



Genus VIII. TROPIDIA. 



TROPIDIA, Mg. zw. iii. 347. 2 (1822) ; St. F. et Srv. ; Mg. ; Lw. ; 

 Ztt. ; Ct. ; Rdn. Eristalis p., Fin. 



.Epistoma carinatum. Antenna capitis latitudine conjunctim breviores ; 



articulus quintus nudus. Scutellum depressum, acutum. Areola sub- 



apicalis integra; lobus axillaris distinctus; vence subcostalis et radialis 



ad marginem disjunct^; vena transversa prabrachialis trans medium 



areola discalis inserta. Femora postica acie angulata armata. 



Body rather broad, convex. Head semicircular ; epistoma keeled. 



Labrum long, emarginate at the tip. Lingua slender, acute, as long as 



the labrum. Maxillas sublanceolate, nearly as long as the lingua. 



Palpi slender, pilose, shorter than the maxillas. Labium rather large. 



AntennaB 6-jointed, approximate, inserted in a small cavity at the upper 



part of a protuberance in the middle of the face, jointly shorter than the 



breadth of the head ; first joint short, cylindrical ; second stouter, pilose, 



cyathiform ?, oblique at the tip ; third patelliform, truncate at the tip ; 



fourth and fifth extremely short ; fourth seated on the third a little before 



the middle; sixth setiform, bare, very long. Thorax subquadrate, slightly 



rounded ; scutellum semicircular, fiat, with a sharp edge. Wings finely 



pubescent, incumbent, parallel, somewhat deflexed ; subapical areolet 



entire; axillary lobe distinct; subcostal and radial veins 'ending sepa- 



