226 Mr. J. R. Mallocli on Exotic Muscaridge. 



tergite, and an even less distinct pair on third. Tarsi 

 fuscous. Cross-veins narrowly brown. 



Each orbit with four or five long bristles ; ocellar bristles 

 very long ; arista long-haired. Presutural acrostichals 

 absent ; postsutural dorso-centrals 3 ; both intra-alars long ; 

 prealar absent ; sternopleurals 1:1:1; hypopleura bare. 

 First and second tergites each with a long bristle on side, 

 third and fourth with long bristles on posterior margins, 

 and the fourth with a median series ; basal portion of 

 hypopygium with some bristles ; fifth sternite with two 

 bristles on each side at base of incision. Fore tibia with 

 one antero-dorsal and one posterior bristle ; mid-tibia 

 with one antero-dorsal and two postero-dorsal bristles; 

 hind femur with some short, widely placed bristles on 

 antero-ventral surface, and one long one before apex ; hind 

 tibia with one or two antero-ventrab two antero-dorsal, and 

 one strong postero-dorsal median bristle. Costal thorn 

 long; veins 3 and 4 parallel apically. Lower calyptra not 

 very large. 



Length 6 mm. 



Type, Embu, Kenya Colony, 20. ii. 19U (G. St. Orde 

 Broivne). 



Genus Spilaria, S. &; D. 



This genus is distinguished from its nearest allies by the 

 possession of the following characters : — Hypopleura with a 

 vertical series of fine hairs below the metathoracic spiracle ; 

 both intra-alar bristles strong, the anterior one in line with 

 or almost in line with the anterior dorso-central bristle j 

 eyes distinctly hairy, generally conspicuously so. 



All these characters apply also to another genus, Euspi- 

 laria^ gen. nov., which may be differentiated from Spilaria as 

 follows : — 



Hypopygium of male small, not promiuent, generally 



almost concealed, the fifth sternite not deeply 



cleft, basal sternite generally with some hairs ; 



praescutellar acrostichals present ; scutellum 



in both sexes with the hairs continued down 



over sides and sometimes invading the ventral 



surface ; parafacials bare in both sexes Spilaria, S. Sl -D. 



Hypopygium of male large, prominently exposed, 



the fifth sternite deeply cleft, basal sternite 



bare ; prescutellar acrostichals absent ; scu- 

 tellum in both sexes with the hairs continued 



down over sides and sometimes invading ventral 



surface ; parafacials in female with some 



setulose hairs in a series which is continued 



below apex of second segment Euspilaria ,^ew .nor . 



