GENUS STYGEROMYIA 371 



then returning to its resting place, to repeat the manoeuvre after 

 a short time. 



Although a most vigorous search was made for the larvae in Kodaikanal, 

 they were not found. A few were bred in cow dung, but with great 

 difficulty. The egg is almost black when laid and in general structure 

 simulates that of Stomoxys. 



GENUS HAEMATOBOSCA, BEZZI 



Medium-sized brownish files very similar in general appearance to 

 Haematobia and Bdellolarynx, but with slenderer bodies. The head in 

 profile is not unlike that of Haematobia. There is no sexual colour 

 dimorphism. Frons in male narrow; in female about half the total 

 width of the head. Arista with six to seven bristles on its upper surface, 

 and one to two on its lower. Palp as long as proboscis, but less club- 

 shaped than in Haematobia and Bdellolarynx. Thorax covered with 

 small bristles and marked on its dorsnm with four narrow longitudinal 

 bands. Chaetotaxy as in Bdellolarynx. Abdomen with a central 

 longitudinal band and lateral brown patches. Wings greyish or tawny ; 

 fourth longitudinal vein curves up to a greater extent than in the case of 

 Haematobia and Bdellolarynx. The first posterior cell is narrowly open 

 as in Stygeromyia (at least S. maculosa ). First and third longitudinal 

 veins without any basal spines. 



Haematobosca atripalpis, Bezzi, the type species, is found in Central 

 Europe. The only other species, H. perturbans, Bezzi, is found in North 

 China. The early stages of both these flies are unknown. 



GENUS STYGEROMYIA, AUSTEN 



Medium-sized flies resembling Stomoxys and Lyperosia in general 

 appearance. Head flattened somewhat from before backwards. Frons 

 at vertex in male narrow, about one-third total width of head. Arista 

 with eleven or twelve bristles on its upper surface, none on the lower. 

 Palpi as long as the proboscis, club-shaped and curving upwards. 

 Thorax greyish, with two or more clove brown stripes. Thoracic chaeto- 

 taxy (macrochaetae} : Humeral 3 ; posthumeral I ; notopleural 2 ; presu- 

 tural I ; supra-alar I ; infra -alar I ; post -alar 2 ;' dorsocentral 6, one in 

 front and five behind the suture; acrostichal I ; mesopleural 9 or 10; 

 sternopleural I , arranged : I. Abdomen greyish with spots and longi- 

 tudinal median band. Wings pale to clove brown : first posterior cell 

 narrowly open at the tip ; apical portion of fourth longitudinal vein 

 perfectly straight and not bent up at the extremity, or only slightly so. 



