Cutitevebra and its Allies in the British Museum. 391 



2:en. nov. 



^ ... 7 J^ 



Large, compact, and thick-set flies, resembling Cutiterehra 

 general appearance, but with the arista bare and the tarsi, or 

 at least the front and middle pairs, not expanded. 



Allied to Rogenhofera, Brauer (Verb. k. k. z.-b. Ges. Wien, 

 1863, and 'Monographic der Oestriden,' 1863, pp. 215-216), 

 but difi'ering as follows : — Profile of the head much more 

 nearly semicircular than that of Rogenhofera as shown in 

 Brauer's figure (' Monographic,' &c. tab. iv. fig. 8 a) ; viewed 

 from in front the outline of the head much more nearly circular 

 than that of Rogenhofera as figured by Brauer (' Mono- 

 graphic,' &c. tab. vi. fig. 14) ; eyes occupying rather more 

 than the upper half of the head in profile, but not projecting 

 above the vertex — rather on a slightly lower level when 

 viewed from in front ; with the head in its natural position, 

 no space visible between it and the thorax, when the insect 

 is viewed from the side ; antennary pit small, in length equal 

 to about one fourth of the greatest length of the eyes, and, 

 when the head is viewed from in front, extending from a 

 point opposite the centre of the inner margin of the eye to 

 another slightly lower than the middle of the lower half of 

 the latter ; antennai small, first two joints very short, third 

 joint rounded at the tip, rather longer than the first two joints 

 taken together ; arista short, stout, tapering only at the tip, 

 first segment somewhat elongated and arising from the third 

 joint of the antennae at a point about one third of its length 

 from the base ; proboscis short, concealed in the oral cleft, at 

 least in the typical species ; occipital orbits very conspicuous ; 

 first pair of legs slender, the tarsi not expanded ; middle and 

 posterior legs, though stouter, with tarsi but slightly dilated, 

 scarcely broader than the tibiee, their middle joints ovate, not 

 semilunar; wings shorter than in Rogenhofera, tapering to 

 their tips, with no appendix to the angle of the fourth vein ; 

 alulce large, quadrate, with the anterior angles rounded, very 

 prominent when the wings are at rest ; abdomen bluntly 

 conical, the basal angles rounded off abruptly. 



Pupa-case viewed from above subpyriform, much more 

 regular in outline than that of Cutiterehra, since the segments 

 bear no ridges as in the genus alluded to ; viewed from the 

 side, the under surface slightly concave, the upper strongly 

 convex ; upper surface of the first four segments forming a 

 cap (" Deckel "), as in Cutiterebra, to facilitate the escape of 

 the imago ; terminal segment concealed in a narrow trans- 

 verse slit, bearing a notch on the lower instead of the upper 

 margin, as in Cutiterebra ; the eighth segment the longest ; 



