so 



186. 

 CERIA CONOPSOIDES. 



Order Diptera. Fam. Syrphitlae Lat., Leach.^ Meig. 

 Type of the Genus Musca conopsoides Linn. 



Ceria Fab., Lat., Meig., III., Leach. — Syrphus Panz. — Musca Linn. 



Antennce inserted at the extremity of a peduncle in front of the 



head, pubescent, 4-jointed, clavate, basal joint cylindric-clavate, 



2nd and 3rd robust lanceolate compressed and velvety, the 4th 



forming an acuminated apex (fig. 3). 



Labrum not so long as the lip, horny rounded, hollow to receive 



the tongue (1, b). 



Tongue shorter than the labrum, acuminate (c). 



Mandibles none. 



Maxilla: short, bent and compressed fe). Palpi as long as the 



tongue, membranous compressed dilated, biarticulate, basal 



joint long, 2nd rhomboidal pubescent (f). 



Lip large fleshy, terminated by 2 slightly pilose lobes (g). 

 Proboscis short, vertical (2 g). Head large vertical, with a horn in 

 front (2 a). Eyes contiguous in the males (2*), remote in the fe- 

 males. Ocelli 3 in triangle. Thorax quadrate rounded behind. 

 Scutellum semicircular. Abdomen cylindric, subclavate, more ro- 

 bust in the females. Wings divaricating? containing about 10 per- 

 fect cells. Halteres small. Legs rather robust. Tibiae subclavate. 

 Tarsi 5-jointed, basal joint the longest, 4th very short, deeply cleft. 

 Claws rather small. Pulvilli distinct (8, a fore leg). 



Conopsoides Linn. Faun. Suec. 1790. — clavicornis Fab. Ent. Syst. 

 4. 277. 1. Meig. Syst. Besch. 3. 160. 2. 



Black, shining, thickly and minutely punctured, covered with 

 very short pubescence. Head variegated with yellow, the pro- 

 cess to which the antennae are attached very long and ferruginous, 

 base and apex of antennae brown. Thorax with the anterior 

 angles and 2 spots on each side above the insertion of the wings 

 yellow, base of scutellum and halteres of the same colour ; basal 

 angles of abdomen and the margins of the 2nd 3rd and 4th 

 segments pale yellow. Wings yellowish fuscous, a broad stripe 

 upon the costa brown, nervures deep brown. Legs pale fer- 

 ruginous ; thighs black, except at their extremities ; tibiae fus- 

 cous towards their apex j posterior tarsi dull castaneous. 



Li the Cabinet of the British Museum. 



