208 MUSC1D;E. 



b. Legs of moderate length. 



c. Scutellura of the metathorax developed. THEMIRA. 



c c, Scutellum of the metathorax obsolete. SALTELLA. 

 6 b. Legs long. CALOBATA. 



Genus I. SEPSIS. 



SEPSIS p., Fal. ; Meig. ; Wied. ; Latr. ; Curt, Musca p., E. S. ; 

 Gmel. ; Schr. ; Pz. ; Coq. TepJiritis p., F. S. A. Micropeza p., Latr. 

 Micropeza, Desv. 



Metathoracis scutellum bene determinatum. Ala apice nigro-maculattc. 

 Abdomen subpetiolatum, convexum, arcuatum, apice subtus incur- 

 vuni; segmentum primum longum, apice supra tumidum. Pedes 

 graciles; tibia3 areuatae. Mas. Abdomen subclavatum. Femora 

 tibiceque antica subtus dentata et spinosa. Fcem. Abdomen longi- 

 ovatum. 



Scutellum of the metathorax distinct. Wrings with a black spot at each 

 tip ; costal vein ending on the hind border at a short distance from the 

 tip of the wing ; subcostal ending before one-third of the length ; me- 

 diastinal ending before half the length ; radial ending at about seven- 

 eighths of the length ; cubital ending at the tip ; prsebrachial diverging 

 from the cubital between the transverse veins, slightly converging to 

 it between the discal transverse and the tip ; discal transverse nearly 

 straight, parted by much more than its length from the praebrachial 

 transverse and from the border. Abdomen slightly petiolated, convex, 

 arched, incurved beneath at the tip ; first segment long, tumid at the 

 tip. Legs slender ; tibise slightly curved. Male. Abdomen subclavate. 

 Fore femora and fore tibiae dentate and spinose beneath. 



1. cynipsea, L. S. N. ii. 997. 113 (1767) ; D. G. ; Scop. ; P. ; 

 Schr. ; Gmel. ; Oliv. ; Latr. ; Fal. ; Meig. ; Mcq. ; Zett.fulgida, 

 Desv. Nigro-viridis, pedibus niyris, antennis fuscis, alis hyalinis, ab- 

 domine cupreo purpureoque micante. Long. 1-1 ^ ; alar. lf-2i lin. 



Greenish-black. Head aBneous-black behind. Antennae brown ; 

 arista black. Thorax aeneous on each side. Wings limpid. Halteres 

 yellow. Abdomen somewhat cupreous, with a purple band on each 

 segment. Legs black ; coxae brown; fore coxae red ; femora brown at 

 the base and at the tips ; fore tibiae brown with red tips ; middle tibiae 

 with brown tips. Var. /3. Male. Scutellum of the metathorax aeneous. 

 Var. y. Male. Abdomen wholly cupreo-aeneous. Var. 8. Male. Abdo- 

 men aeneous ; first and second segments with blue bands ; fore tibiae 

 and metatarsi red. Var. e. Fern. Abdomen cupreous ; first segment 

 aeneous-green on the hind border, second purple on the disc; hind 

 femora red at the base. 



Generally distributed, and abundant from the spring to the 

 autumn ; sometimes in great swarms. (E. S. I.) 



