6 INSECUTOR INSClTlit MENSTRUUS 



on vein 1 , the outer similarly curved just above the inner margin ; fringe 

 brown tipped. Hindwing w^hite. 



Cotypes, two males, three females, No. 181 13, U. S. Nat. Mus. ; St. 

 Jean and St. Laurent, Maroni River, French Guiana, October, Novem- 

 ber, and December, 1 904 ; Omai, British Guiana (W. Schaus). 



Similar to T. pura Walker, but the forewing not white. 



NOTES ON CERTAIN CALIFORNIAN LEPIDOPTERA 



By W. S. WRIGHT 



Oncocnemis nita Smith. 



I recently found the original description of this species while arranging 

 my literature and was led to examine my specimens of O. augustus {?) 

 through Professor Smith's reference to the likeness of the two. 



I studied 39 specimens — 1 5 females, 24 males. The females are 

 uniformly smaller, 2 7 to 3 1 mm. with an average of a little less than 29 

 mm. The males measured 26 to 36 mm. with an average of 31.50 mm. 



Two of the specimens examined were identified by Professor Smith 

 as O. augustus during the year 1909. They are the ones he speaks of 

 in his note as having been " received from Mr. George Field bearing the 

 number 7 1 ." The two specimens are quite gray in color and when 

 placed beside fresh specimens appear to be badly faded. They are also 

 badly rubbed. Their measurements are, for the male 29 mm., for the 

 female 36 mm. Beside them are also two other specimens, likewise male 

 and female, taken at the same time and in the same locality. These two 

 latter specimens agree exactly with the description of nita, the color being 

 perhaps a trifle deeper. 



Thirty-five of the specimens examined were captured in 1 9 1 I between 

 September 22 and October 15, all in one locality, the crest of a hill 

 about four city blocks in extent and about three-fourths of a mile eastward 

 from the first locality. These specimens run a little smaller than the four 

 above mentioned but do not differ in maculation. 



On the whole the general color of the primaries is nearest to clay 

 color (R. V. 8). In several specimens a suspicion of tawny (R. v. 1) 

 appears and one specimen is suffused with tawny to such an extent that 

 it appears to be a faint red-brown. 



The lines are practically as described. The orbicular varies from 



