252 



PS r CHE. 



[June i?95. 



comparisons, the characters of Besseria 

 being taken from the figures and 

 descriptions given by the authors above 

 mentioned. For the sake of uniformity, 

 it will be assumed that the sex having 



Besseria. 



Front of male destitute of orbit.il bristles. 



Face perpendicular, in profile strongly con- 

 cave; epistoma projecting. 



Facial ridges bare. 



Third joint of antennae less than twice as 

 long as the second. 



Genitalia of female nearly as broad as the 

 abdomen, incapable of being concealed 

 within the latter. 



From this it will be seen that not 

 only are these two genera not identical, 

 but their differences are so great that it 

 becomes a matter of much surprise that 

 the authors above metitioned, who have 



the process on the second ventral seg- 

 ment is the female, to which sex the 

 above authors assign it, although in the 

 genus Celatoria this form undoubtedly 

 represents the male : — 



Celatoria. 



Front of male bearing two pairs of orbital 



bristles. 

 Face retreating, in profile strongly- conve.Vi 



epistoma retreating. 

 Facial ridges bristly to or beyond the middle. 

 Third joint of antennae at least four times 



as long as the second. 

 Genitalia horny, not broader than the tibia, 



capable of concealment in a groove on 



the venter. 



not hesitated to establish new genera 

 on verv trivial characters, should have 

 arrived at the conclusion that these two 

 forms are one and the same. 



THE LARVA OF BUTALIS BASILARIS ZELL. : THE RELATIONS 



OF ITS SETAE. 



BY HARRISON G DYAR, NEW YORK CITY. 



In Butalis basilaris Zeller (deter- 

 mined by Prof. C. H. Fernald) we have 

 a Tineid larva which lives an exposed 

 life. Its superficial resemblance to a 

 Pterophorid is extremely close and it 

 lives in the same situations. The 

 larvae were found eating into the 

 young leaves and buds at the ends of 

 the growing shoots of the blackberry in 

 June and again in August, at Keene 

 Valley, N. Y. 



Larva. Cylindrical, the abdominal feet 

 slender, the circular planta with a ring of six 



crochets regularly distributed. No second- 

 ary hairs ; setae long, with flattened or 

 winged-furcate ends, arising from cylindrical 

 produced tubercles; i and ii approximate, 

 their bases fused; iii lateral, iv and v united, 

 vi subventral posteriorly, vii of three setae 

 on the anterior side of the base of the foot; 

 viii very small, ne.\t mid-ventral line. Color 

 of the body shining green, closely adapted 

 to the color of the young leaves; setae and 

 tubercles white, adding a mossy appearance 

 to the larva and causing it to still further 

 resemble the leaves. Head slightly testa- 

 ceous; width .6 mm., length of larva 5 mm. 

 When mature the larva spins a cocoon of a 

 coarse open network of silk at the ground 



