3IO ENTOMOLOGICAL NEWS [] u ty, ' ll 



and distributed in different collections, are not really the 

 isame species, and in most of such cases the British Museum 

 specimens have the best claim to be considered the determin- 

 ing forms. And so in the case of the Acronycta, I have ac- 

 cepted the references of Vol. VIII, except where I feel 

 reasonably certain that they will not stand the test of future 

 comparisons, or where for some reason an error would follow 

 an acceptance of the conclusion. 



With the method of arrangement adopted by Hampson, 

 I do not agree at all ; but that is a purely subordinate matter 

 based on a difference in the fundamental characters used in 

 making the subdivisions. 



My own views are sufficiently given in the Monograph of 

 the genus, Proc. U. S. Nat. Mus., XXI, i 194, 1898. 



Acronycta hastulifera S. & A. 



Hampson records this species as unknown to him. Under 

 the name insita Wlk., he figures on PL CXXVII f. 3, a species 

 that is almost certainly the species in my collection and in 

 others under the name hastulifera. My denvera is cited as a 

 synonym of insita, which it is not, if insita is really 

 hastulifera, as I believe. The descriptions of larvae differ ; but 

 whether Dyar, who furnished both descriptions, had the larva 

 of the Colorado form or not, I have no way of determining. 



I believed my denvera to be a form of dactylina; in that I 

 was probably in error, and it may be nearer to hastulifera. 

 If there is a species insita, so near to hastulifera that neither 

 the description nor the picture avail to separate the two, I 

 do not know that species. I saw insita in 1900, and at that 

 time compared the $ with $ dactylina. 



Acronycta lepusculina Gn. 



This species had been altogether misidentified in American 

 collections and is the form I had determined as insita. 



Hampson has pointed this out after an examination of the 

 type and gives the name chionochroa to the form mistakenly 

 characterized in the monograph under the Guenee name. 



