158 THE CANADIAN ENTOMOLOGIST. 



line predominating. Faint indications of an uneven t. a. line. The discal 

 mark almost obsolete. Faint terminal dots may be discerned. Hind 

 wings gray without lines. Two specimens, Savannah, Georgia, in Mus. 

 Brem. 



The more of our species of Catocaline Noctuids, belonging to the 

 group of which Drasteria may be considered typical, the so-called 

 " Grass Moths," I have become acquainted with, the more do I see the 

 necessity for their generic revision. But the material I have had at any 

 one time has been so small and fragmentary that I have been unable to 

 attempt it. 



DESCRIPTIONS OF CERTAIN LEPIDOPTEROUS LARVAE. 



BY HARRISON G. DYAR. 



Colias Behrii, Edw. 



Egg. — Spindle shaped, a little contracted just before the tip, with low 

 longitudinal and transverse ridges, which divide the surface into shallow, 

 rectangular parallelograms. Length, 1.3 mm.; width, .6 mm. The eggs 

 are laid singly on the upper side of the leaves of a species of ground 

 huckleberry, its food plant. 



First stage. — Head rounded, dark brown ; width, .25 mm. Body of 

 normal shape, sordid whitish, apparently without marks ; minutely pilose. 



Fifth stage. — Head rounded, very slightly bilobed, slightly reticulated 

 with brown ; no other marks ; width, 2 mm. Mouth parts brown j ocelli 

 and jaws black. An even, pinkish white dorsal line, very narrowly black 

 bordered, runs the length of the body, tapering a little at each end, 

 obsolete on joints 2, 3 and 13. A broader, even, subdorsal line, nearly 

 white on the edges, salmon coloured centrally, and bordered above by a 

 black lunate shade on the anterior part of each segment. A similar, very 

 even substigmatal band, pinkish centrally ; the bordering black shades 

 surround the spiracles and are larger and more diffuse than those above 

 the subdorsal band, but very faint on the thoracic segments. A faint, 

 even, lateral band, paler than the ground colour, which is probably some 

 shade of green in living specimens. Spiracles white, the pair on joint 12 

 larger than the others. Thoracic feet testaceous. 



Pupa. — This seems not distinguishable from that of other species of 

 Colias. Thorax large, the back arched and cases prominent ; abdomen 



