182. 

 RHINGIA CAMPESTRIS. 



I 



Order Diptera. Fam. Syrphidse Lat., Leach. 



Type of the Genus Conops rostrata Linn. 



Rhingia Scop., Fab., Lat., Meig., Panz. — Conops Linn. — Musca 

 DeGeer. 



AntenncE inserted in front on an elevated portion of the head, 

 porrected; 5-jointed, basal joint small, 2nd larger subclavate 

 pilose, 3rd the largest subcordiform, 4th minute, inserted on 

 the side of the 3rd near the base producing a long slightly 

 pubescent bristle (fig. 3). 



Labrum long broad, hollow thin transparent, trilobed at the 

 apex (1, b). 



Tongue nearly as long as the labrum, thin transparent, lanceo- 

 late (c). 

 Mandibles none. 



MaxillcE as long as the tongue, slender acute (e). Palpi long, 

 united to the maxillae at their base, detached towards the ex- 

 tremity, which is bent clavate and slightly hairy (f). 

 Lip retractile long fleshy pilose, terminated by 2 long lobes (g). 

 Proboscis very long. (2 g). Head subtrigonate. Nasus produced, form- 

 ing a long conical horn, hollow to receive the proboscis. Eyes con- 

 tiguous in the males, remote in the females (2 *). Ocelli 3 in tri- 

 angle at the base of the head. Thorax globose. Scutellum semi- 

 orhicular. Abdomen ovate shorter than the Wings, which are 

 horizontal and incumbent when at rest, containing about 13 cells. 

 Halteres small clavate. Legs simple. Tarsi 5-jointed, basal joint 

 the longest and robust in the hinder pair, 4th joint minute. Pulvilli 

 and Claws distinct (8, afore leg). 



Campestris Meig. Syst. Besch. v. 3. p. 259. n. 2. — rostrata DeGeer, 

 V.6. tab.7.f 21— 23. 



Nose ohcraceous black at the apex. Eyes rosy black. Thorax 

 aeneous black, with 2 pale abbreviated lines on the back, Scu- 

 tellum dull castaneous. Abdomen bright ochre ; basal joint, 

 margins of the segments, a line on each side, and another down 

 the back tapering to the apex, dark brown. Wings slight) v iri- 

 descent, yellowish fuscous, darkest at the costa, nervures brown. 

 Legs dull ochre. Thighs black at the base : tibiae with a dark 

 ring in the middle most distinct in the hinder pair : tarsi black- 

 ish above. 



In the Author's and other Cabinets. 



