THE FLIES THAT CAUSE MYIASES IN MAX 



109 



Segment 10 vent rally without an anterior row of spines : posterior bands of 

 spines present on segment 10 ventrally and on segments 8 and 

 dorsally ; posterior spiracles not divergent (figs. 56, B 57, B). 



lineatum (Villers) 



HYPODERMA DIANA Brauer 



The Deer Warble Fly 



Synonym. — Atelecephala (liana (Brauer) of Townsend. 



Recognition Characters.— Adult : This is a beelike species, but does not have 

 the strung resemblance to a bumblebee that E. bovis dues: it is also much less 



Figure 56. — Mature larva, dorsal view: A, Hypoderma diana; B. H. lineatum. 



(After Cameron (23, p. 136).) 



robust. The body is grayish-yellow haired, with some darker hair on the middle 

 part of the abdomen dorsally, more in the female than in the male. The 

 mesonotum bears four polished longitudinal stripes which are interrupted at 

 the suture. The legs are yellowish brown, the femora more or less extensively 

 blackish. Length 10-12 mm. Larva (figs. 56, A and 57, A) : Sufficiently char- 

 acterized in the key. 



Geixjraphical Distribution. — Palaearctic Region : Central and southern 

 Europe: Scotland. France, Germany, Austria. Bulgaria. 



Life History and Pathogenesis. — The normal hosts are the red 

 deer (Cervus elaphus) and the roe deer (Cervus capri olus) of Europe. 

 Its biology, as far as known, is similar to that of Hypoderma bovis. 



Literature.— Cameron (22 and 23) ; Patton (107). 



