10 Veterinary Medicine. 



Family HIPPOBOSCID^ (hippoboscus feeding on horse), 

 PUPIPARA, IvOUSE FI.IKS. Adults live like lice on 

 skin; winged, wingless, or lose wings as mature. Antenna 

 one jointed with terminal bristle. Ova hatched in parent's 

 body. 



Hippobosca Equina (boskein to feed). Hoesb Tick. 

 Spider Fi,y. Winged. Attacks horses, (cattle and dogs). 



H. Canina. Attacks dog. 



H. Taurina. Attacks cattle. 



Melophagus Ovina. (Melon sheep, phagein to eat). Sheep 

 Tick. Wingless. Lives on coarse and middle wooled sheep. 



Olfersia Americana. Winged. Lives on birds. LipopTERA. 

 Young, winged on birds ; mature wingless on mammals. 

 Family BRAULID^. Bee Lice. 



Braula C^ca. On honey bee. Reproduction like Hippo- 

 boscidse. 



Family CESTRID^. Bot Flies. Proboscis rudimentary: 

 Palpi wanting or dwarfed. Larva hybernate in mammals. 



CEstrus (Gastrophilus. Gastrus) Equi. Fly brownish 

 yellow. Europe, Asia, Africa, N. America. Stomach (left 

 sac): horse. 



CE. (Gastrophilus, Gastrus) Haemorrhoidalis. Fly 

 blackish brown, yellow abdomen. Larva in pharynx, gullet, 

 left sac of stomach, duodenum, rectum. 



CE. (Gastrophilus, Gastrus) Pecorum. (pecus beast of 

 burden). Fly, iron yellow. Larva in stomach and intes- 

 tines ; horse and ox. 



CE. (Gastrophilus, Gastrus) Nasalis (Duodenalis, Salu- 

 taris. Fly black with brownish or golden thorax : larva in 

 duodenum, posterior nares, pharynx, gullet and stomach : 

 horse : goat ; in brain and spinal cord : horse, ass. 



CE. (Gastrophilus, Gastrus) Flavipes. Fly with yellow 

 feet. Larva in stomach. Horse. Spain, Dalmatia, North 

 Africa. 



CE. (Gastrophilus, Gastrus) Inermis. Larva unknown. 

 Pupa in horse dung. 



CE. (Gastrophilus, Gastrus) Lativentris. Broad bellied 

 fly. Courland. Larva unknown. 



