76 ENTOMOLOGICAL SOCIETY 



MARCH 10, 1904. 



The iS5th regular meeting was held at the Saengerbund Hall, 

 314 C Street N.W. Dr. Hopkins presided, and the following 

 members were present : Messrs. Ashmead, Barber, Benton, 

 Burke, Busck, Catidell, Currie, Doolittle, Dyar, Fiske, Gill, 

 Heidemann, Howard, Kotinsky, Morris, Patten, Piper, Schwarz, 

 Warner and Webb. 



Dr. Dyar presented the following notes : 



NOTE ON THE LARVA OF THERINA SOMNIARIA HULST. 

 By HARRISON G. DYAR. 



This species has been referred as a variety of T. fervidaria 

 Hubner, but is really distinct. The characters pointed out by 

 Hulst are constant. A series of 46 specimens is before me from 

 Mt. Hope, Oregon (F. Epper), and Gray's Harbor, and Satsop, 

 Washington (H. E. Burke). Mr. Burke has found the larvae com 

 mon on oak (Quercus garryana], which adds another distin 

 guishing character between the forms, since the larvae of T. fer 

 vidaria are addicted to spruce. I have specimens bred at the De 

 partment of Agriculture on spruce (Abies balsamca} from King, 

 Maine, under the number 8698. Mr. Burke brought home a num 

 ber of the larvae of 7 . somniaria in alcohol. They may be de 

 scribed as follows : 



Larva. Shaped and colored as in the other species of Therina and very 

 variable. Head wide bilobed, flattish before, clypeus depressed, lobes full, 

 wider than high; white with sparse gray spots over the lobes, a black 

 spot on tubercles i and ii; sutures, jaws and ocelli dark. Body moderate, 

 rather flattened ; light gray, nearly white, smooth. Subdorsal line broad, 

 white, narrowly dark edged; venter broadly white. Between these 

 marked variably in black. The lightest form has a faint, double, crinkled 

 addorsal line, black spots on tubercles i and ii, two black lines represent 

 ing the edges of an obsolete lateral line with a black bar below tubercle 

 ii between the subdorsal and lateral lines; spiracles black; two fine black 

 lines in the subventral area. The dark forms are checkered with black in 

 large quadrate patches, forming a smaller checkered pattern on the dorsum 

 and large blotches on the sides. 



The pupa is nearly white, thickly spotted with black on the 

 abdomen and streaked on the cases. The last segment is entirely 

 black : the cremaster has a few stout hooks. 



