FAMILY OESTRIDAS 



273 



the backbone, about six or eight inches from it and between 

 the shoulders and the hips. The time of the appearance 

 in that location and the time when the larvae are taken into 



Fig. 218.- — Hypoderma lineata: ovipositor of female: a, from side; h, 

 tip, from below — enlarged. (From Insect Life.) 



Fig. 219. — Hypoderma lineata: second stage of larva from esophagus: 

 a, larva; b, enlargement of cephalic segments, end view; c, mouth parts; 

 d, enlarged end view of anal segment, showing spiracles and spines. (From 

 Insect Life.) 

 18 



