286 THE CANADIAN ENTOMOLOGIST. 



curved and having at apex beneath a prominent, curved, subacute tooth, 

 which is flattened and dilated at base ; tarsi brownish-black. Abdomen 

 black, shining, clothed with erect, pale pubescence, longest at base and 

 more or less mixed with black on segments 4-6 ; segments 2-6 with dis- 

 tinct, white, marginal fascia ; apical segment bilobate. Venter clothed 

 with white pubescence. 



Habitat : Berkeley, Cal. ; May and June. Three males. This species 

 is closely allied to D. anstralis, which, however, has the second sub- 

 marginal cell smaller and not narrowed above. It may readily be distin- 

 guished from the male o( D. enavata by the longer third antennal joint, 

 the much more prominent lobes of the apical segment of the abdomen, etc. 



4. Didasia enavata^ Cress. (=:D. tricincta, Prov.). — Santa Catalina 

 Island, Santa Barbara, and Redlands, Cal. (H. O. Woodworth); June. 

 Numerous specimens. 



DESCRIPTION OF THE LARVA OF HADENA MISELOIDES, 



GUEN. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Egg. — A little less than spherical, the base flat. Twelve sharp ribs 

 run to the vertex, which is large, circular, reticulate, with a central 

 elevation at the micropyle ; one-third of the way down these ribs neatly 

 alternate with twelve others, forming twenty-four ribs around the base. 

 Ribs straight; space distinctly, regularly cross striate. Diameter .8, 

 height .7 mm. 



Stage /. — Head rounded, mouth pointed ; shining yellowish ; width 

 .5 mm. Body thickened at thorax and joint 12, robust, sharply tapering 

 at joint 13, which is placed almost under joint 12. Translucent 

 yellowish, shining and sticky like a slug, the food showing by trans- 

 parency. Sette minute and pale, not glandular, tubercles obsolete. 

 Rests curled on the back of the leaf j several larv;\3 on the same leaf, but 

 not gregarious. Hatched wiien found. 



Stage II. — Head whitish, shining ; width .7 mm. Body as before, 

 but less yellowish, shining, but not sticky and green from the food. 

 Joint 2 in front is yellowish, and the sides of joint 12 are whitish from 

 the large tracheae showing through the skin. Seta? nearly imperceptible. 



Stage III. — Head small for the body, somewhat retracted, pale 

 luteous ; width i.i mm. Body robust, thorax and joint 12 enlarged, the 

 latter somewhat angular, shining, translucent green, appearing all dark 



