377. 

 CONOPS MACROCEPHALA. 



Order Diptera. Fam. Conopsidae. 

 Type of the Genus, Conops flavipes Linn. 



CoNOPS Linn., Fab., Lat., Meig., Curt. Guide Gen. 1262 &c. 



Antennce attached to a protuberance at the upper part of the face, 

 approximating, as long as the head, clavate, composed of 6 or 7 

 joints, basal joint short, 2nd the longest pilose and subclavate, 

 3rd pyriform, much shorter and rather stouter, 4th very short, 

 5th larger, produced on one side, 6thsubpyriform, terminated by 

 a short obtuse spine (3). 

 Labrum slender and rigid (1, b). 

 Tongue longer, very slender and transparent (c). 

 Mandibles and Maxilla none. 



PaZpj inserted near the apex of the mentum, short, uniarticulate, 

 producing a few bristles at the apex (f). 



Mention ? rather long and vertical ; Labium porrected obliquely, 

 and forming an angle with it, twice as long as the tongue, robust, 

 slenderest in the middle, slightly pilose and terminated by 2 

 lobes (g). 

 Proboscis long and geniculated (1). Head large broad and short, the 

 face coriaceous and inflated, with a large cleft to receive the base of 

 the proboscis. Eyes remote in both sexes, large and oblong. Ocelli 

 none. Thorax globose. Scutellum small. Abdomen very convex 

 above, incurved at the apex, clavate, the basal joint very short, gene- 

 rally with a tubercle on each side, the 2nd sometimes elongated and 

 slender, the remainder more or less ovate, the antepenultimate with a 

 large process attached beneath, in the male (7). Wings incumbent and 

 parallel when at rest, tvith a large submarginal cell, pointed at tJie 

 apex and terminated by a pedicle {9). Halteres short and capitate. 

 Legs rather stout. Tibiae slightly curved in profile, compressed and 

 dilated at the apex, sometimes having a transverse suture, as if they 

 had been broken. Tarsi rather broad and 5-jointed, basal joint the 

 longest, 4th lunulate, oth elongate-obtrigonate. Claws and Pulvilli 

 large and distinct (8, a fore-leg). 



Macrocephala Linn. Faun. Suec. 467, 1902. 



Black, slightly cinereous, clothed with very short hairs : head 

 broader than the thorax, castaneous-black ; face yellow, with a 

 brown streak from the crown to the antennae, and a triangular 

 one below them : eyes and proboscis dull castaneous : antennae 

 ferruginous : thorax with a silvery spot on each shoulder : wings 

 tinged yellow, the costal portion brown, nervures ferruginous: 

 halteres ochreous, black at the base : abdomen transversely stri- 

 ated, with the margins of the segments silvery yellow, basal joint 

 short and broader than the 2nd, which is long and rather slender, 

 the remainder forming an incurved and ovate club : legs ferru- 

 ginous ochre : coxae and base of thighs dark brown. 



In the Cabinet of Mr. Dale. 



