- i5 — 



tinge. Expanse of wings 30 mm. Length of body 16 mm. 9 examples, j-^ 1 , Q. 

 Truckee, Calif. (C. F. McGlashan,) 



A very pretty species, in which the silvery band is in very strong 

 contrast with the ground color of the wing. Its nearest ally is H. Maih- 

 ewi, Hy. Edw. (Vane. Island) but the present species cannot be con- 

 founded with any other. Mr. McGlashan, who is doing good work 

 among the Lepidoptera of his district, and to whom I gratefully dedicate 

 this interesting form, writes me as follows, regarding its habits: "The 

 moth flits about the meadows for about 20 minutes just at dusk. Great 

 numbers fly then at twilight, during the latter days of August and first 

 days of September. The females seem to remain on the ground, and the 

 males fly swiftly about in quest of them. At 6:40 their flight begins, at 

 7 it is ended. They are found only in grassy meadows.'' 



Larval history of Spilosoma congrua, Wlk. 

 By Geo. D. Hulst. 



Some few weeks since Mr. David Bruce of Brockport, N. Y., made 

 me a visit, and looking over my treasures identified a certain pair of 

 Arctiidce as Spilosoma congrua Wlk. The insect had been in my collec- 

 tion unidentified for 32 years. But having them now identified, I am 

 able to give a brief larval history, which all that time has been awaiting 

 a name. 



On the 8th of June 1882, while walking in the beautiful park in 

 connection with Union College, Schenectady, N. Y., I found a pair of 

 Spilosoma, which, while approaching S. virginica in appearance, were at 

 once recognized as distinct. The insects were, as I had no other means 

 of carrying them, at once pinned in my hat, which often serves as an 

 entomological box. I was called away as soon as I reached my stopping 

 place in the city to an ecclesiastical meeting, which was of so exciting a 

 nature that I forgot all about my insects until the next morning. But 

 then looking for them, I found that the female before dying had laid a 

 few eggs, which were cared for and brought with me to Brooklyn. 



The eggs were laid as are the eggs of S, virginica in a mass with 

 something of regularity, and were pure white, not yellowish as in that 

 species. The larvae emerged June 15th, and resembled the larva? of .S'. 

 virginica, being of a dull somewhat sooty white, the hairs being long 

 silky and scattered. After the first moult the larvae took a form and color 

 which remained practically unchanged through their succeeding history, 

 and 1 give only, and that in brief, their appearance after the last moult. 



