Structure and Life-history of the Holly-fly. 263 
connects the oral plate with the endocranium ; the hinder- 
Fig. 3. 
g internal anatomy. g, gonad; sg, left salivary gland (the anterior end only of the right 
gland is shown) ; ve, ventral complex of neryous system. (x 145.) 
Larva of first stage, showin 
part lies in the concave median piece of the endocranium, 
and behind this in the space between the diverging 
TRANS. ENT. SOC. LOND. 1907.—ParT 11. (sEPr.) 18 
