1- jt3A 



397. 

 DRAPETIS ATERRIMA. 



Order Diptera. Fam. Tachydromidae. 



Type of the Genus, Drapetis exilis Meg. 



Drapetis Meg., Meig., Hal., Curt. 



Antenme inserted between the eyes in the middle of the face, as 

 long as the head, contiguous, compressed, 4-jointed, basal joint 

 the smallest, 2nd obovate-truncate, producing a few bristles, 

 3rd the largest ovate-conic, 4 th setiform and pubescent, forming 

 at the base an obtuse angle (3). 



Labrum long horny and very strong, broad ovate and convex at 

 the base, lanceolate and curved at the apex (1 b, and l*b). 

 Tongue very horny, as long as the labrum, broadest at the base, 

 pointed and curved at the apex (c). 

 Mandibles and Maxillce none. 



Palpi incumbent, large and ovate, furnished with a few bristles (f). 

 Lip not very large, terminated by 2 pilose lobes (g), 

 Trophi produced in a short beak. Head subovate, furnished with a few 

 bristles on the top. Eyes covering nearly the whole head, oval, con- 

 tiguous in front of the Face which is ovate (2*). Ocelli 3 in triangle, 

 elevated on the crown of the head (2, head in profile). Thorax sub- 

 globose. Scutellum semicircular. Abdomen somewhat ovate, or 

 trigonate-conic, composed of 7 or 8 narrow annulations. Wings in- 

 cumbent and parallel ivhen in repose, pubescent, costal nervure ex- 

 tending to the 4th at the apex, marginal cell reaching the middle of 

 the casta, 2 short cells at the base, the inferior one the longest and 

 narrowest, from these issue 4 long nervures extending to the margin. 

 Halteres clavate. Legs long. Thighs slightly incrassated. Tibiae 

 simple and slender, the 4 anterior spurred at the apex. Tarsi long, 

 5-jointed, basal joint the longest and stoutest in the posterior pair. 

 Claws bent and acute. Pulvilli bilobed (8, afore leg). 

 Obs. The dissections and descriptions are taken from D. aterrima. 



Aterrima Haliday's MSS. — Curt. Guide, Gen. 1210^. 



Shining black, slightly pubescent : wings iridescent pubescent, 

 nervures brown, ochreous towards the base: halteres very pale 

 ochreous : knees and tips of posterior tibiae ferruginous. 



In the Cabinets of Mr. Haliday and the Author. 



Through the zeal and kindness of my friend Mr. Haliday I 

 am enabled to figure a new species of Drapetis, which he 

 has discovered since the publication of my Guide. 



D. aterrima Hal. — Curt. Brit. Ent. pi. 397. 



Mr. Haliday says, " It is distinguished from D. exilis by 

 the abdomen being entirely deep glossy black in the living in- 



