98. 

 AlERODON CLAVIPES. 



Order Diptera. Fam. Syrphidse Lat.^ Leach. 



Type of the Genus Merodon spinipes Fab. 



Merodon Fab., Lat., Meig. Syrphus Fab., Panz. Eristalis Fab., 

 Lat. Milesia Fab., Lat. 



Anteiince short, nutant, contiguous, inserted near the top of the 

 face, pubescent, 3-jointed, J st joint somewhat cup-shaped, pi- 

 lose at the extremity, 2nd very pilose dilated internally, trun- 

 cated obliquely, 3rd large ovate, with a 3-jointed naked seta in- 

 serted above near the base, 2 first joints minute, 3rd long, slen- 

 der, subulate (fig. 3). 



Labrum short, horny, robust, divided at the apex into a spine, 

 2 lobes and 2 intermediate minute spines (lb). 

 Tongue nearly as long as the labrum, hollow subulate, very 

 acute (c). 

 Mandibles none. 



Maxillee short, broad, rounded (e). Palpi exarliculate, hairy 

 towards their extremity (f). 



Lip retractile, fleshy, dilated, short, pilose, terminated by 2 large 

 lobes (g). 

 Proboscis short vertical. Head vertical (2), broad, short, obtuse. 

 Hypostoma not projecting, villose. Eyes converging above in the 

 males, with a space behind on which are placed 3 Ocelli, distant in 

 the females. Thorax somewhat globose. Scutellum broad, scarcely 

 emarginate. Abdomen cylindric, somewhat attenuated in the males, 

 ovate in the females. Wings rather short, incumbent, parallel, con- 

 taining about 1 1 cells, A or 5 being costal, and 5 discoidal, the nerve 

 dividing the external discoidal cell from the terminal costal one being 

 very much sinuated (9). Halteres smaZZ, concealed. Legs rather 

 short. Posterior thighs very much incrassated, truncated, with a 

 serrated tooth at the inferior angle. Posterior tibiae bent, slightly 

 angulated towards their base. Tarsi 5 -jointed, basal joint the longest, 

 especially in the posterior pair, 2 following joints small, 4thbilobed, 

 5th trigonate. Claws small. Pulvilli distinct (Sf a hind leg). 



Clavipes Fab. Ent. Syst. t. 4. p. 292. n. 50. Meig. Syst. Besch. t. 3. 

 p. 3o\. n. I, 



Male : Blueish black, shining, pubescent. Eyes dull cupreous, 

 pubescent. Hypostoma covered with long aureous hairs, ante- 

 rior half of the thorax and scutellum covered with ochraceous 

 hairs leaving a transverse black band in the middle, base of ab- 

 domen and incisures blackish, 1st joint covered with yellowish 

 hair, the terminal joints completely covered with aureous pu- 

 bescence. Halteres minute, fuscous. Wings fuscous, ferrugi- 

 nous at the base. Antennae, tibiae and tarsi cinereous, pubescent. 

 Claws and pulvilli orange, the former tipped with black. " Fe- 

 male: Thorax rufous, tomentose, abdomen black, base and in- 

 cisures aureous tomentose.'' Meig. 



In the Cabinet of the British Museum. 



