PLATYCEPHALA. 



223 



SUBFAMILY VII. OSCINIDES. 



OSCINIDES, Hal. Oscinides p., Fal. ; Zett. Heteromyzides p., Mcq. 

 Oscinida, Bigot. 



Alarum vents subcostalis et mediastinalia conjunct^ ; radialis ab apice 



remota. Metatarsi postici graciles. 



Subcostal and mediastinal veins united ; radial vein not extending be- 

 yond three-fourths of the length of the wing. Hind metatarsi slender. 



The Oscinides comprise the following genera : 



1. PLATYCEPHALA. 



(long 

 long ; second joint \ 



shorts 



(.short 



Hind femora thick ; hind tibiae curved 



2. CAMAROTA. 



3. MEROMYZA. 



{Cubital vein ending at the 

 tip of the costal ... 4. CHLOROPS. 

 Prsebrachial vein ending at 

 the tip of the costal . 5. OSCINIS. 



Genus I. PLATYCEPHALA. 



PLATYCEPHALA, Fal. Oscinid. (1820) ; Meig. ; Mcq. ; Curt. ; Westw. ; 

 Zett. Musca p., F. E. S. Oscinis p., F. S. A. 



Corpus mediocre. Caput supra depressum. Frons conica, valde pro- 

 ducta. Facies perobliqua. Antenna porrecta ; articulus secundus 

 longus, oblique truncatus ; tertius elongato-conicus, secundo vix longior ; 

 quintus longus ; sextus pubescens, quinto triplo longior. Thorax 

 punctatus. Abdomen thorace paullo longius. Femora postica crassa ; 

 tibia postica arcuata. 



Body moderately long. Head flat above. Front conical, much pro- 

 duced. Face extremely oblique, almost horizontal. Proboscis and 

 palpi short. Antenna porrect ; second joint long, obliquely truncated; 

 third elongate-conical, hardly longer than the second; fifth long; sixth 

 pubescent, rather stout, about thrice the length of the fifth. Thorax 

 thickly punctured. Wings of moderate size ; costal vein ending on 

 the fore border at a little distance in front of the tip of the wing ; sub- 

 costal ending at beyond one-third of the length ; radial ending at a 

 little beyond two-thirds of the length ; cubital ending at the tip of the 

 costal ; prsebrachial ending on the hind border at some little distance 

 from the tip ; prabrachial ending before two-thirds of the length of the 

 hind border ; discal transverse straight, slightly oblique, parted by its 

 length from the prffibrachial transverse, and by near thrice its length 



