Plate XX 

 Sfructiird} Details of Vcntfoixxioiviniv 



Psi'udoculicoldrs })iufal)i]is, hypopyginiii, one side. 



The same, a])ieal five antemial joints of male. 



('idicoldcs Itantiifopoius, lateral arm of hYpo])yginm. 



Gulicoidcs s(tn(juisu(j}{s, a])i<'al foiii' antennal joints of male. 



Culicoides li(vm<ifopoi\{s, a])i('al four antennal joints of male. 



(Julicoides varipcnnis. hy])o])yginm, one side. 



Culicoides crepuseuhiris, a])ieal four antennal joints of 

 male. 



Culicoides varipcnnis, a])ieal four antennal joints of male. 



Culicoides san(/uisu(/us, tliird joint of llagellum of antenna 

 of female. 



The same, palpus of female. 



Culicoides varipeunis, i)upa, lateral view. 



The same, dorsal view of one half of tiiii'd abch)minal seg- 

 ment of pui^a. 



The same, dorsal view of a]K'x of ])U])a. 



The same, third joint of flagellum of antenna of female. 



The same, tarsal elaw of male. 



Culicoides crepuscularis, hyiiojiygium, one side. 



Culicoides veiripennis, thoracic respiratory organ of pupa. 



Culicoides sanguisugvs, hypopygium, one side. 



