274 THE CANADIAN ENTOMOLOGIST. 



The body-colour is dark brown, approaching to black. The antennae are 

 moniliform and somewhat clavate ; for part of their length they are pale 

 green and for the rest light brown. The thighs are brown, and the tibise 

 and tarsi are pale green. The tarsi are four-jointed. 



This insect, I take it, is the Cassida viridis of Linnaeus, advanced 

 from Europe. It is in such numbers that it is evidently well established— 

 is come to stay; and, as it feeds on the burdock and Canada thistle, 

 nobody, I presume, will object to its advent. 



HYDRCECIA NELITA, STRECKER. 



In Supplement No. i to his work " Lepidoptera, Rhopaloceres and 

 Heteroceres, Indigenous and Exotic," dated Sept. 15th, 1898, Dr. 

 Herman Strecker described a species under the above name as follows ; 



"At first glance might be taken for a small JVi/c/a, but it is a darker, warmer colour, 

 more towards a rich chestnut. The t. p is not so conspicuous, and is much more 

 upright, and its course is rather from the costa outwardly oblique than inwardly oblique. 

 One example has the space from the base to t. p. chestnut brown, exteriorly the t. p. is 

 accompanied by a broad, paler ashen shade, beyond which the brown again prevails. 

 In another the whole wing is brown, the t. p. only being discernible on the closest 

 inspection. Beyond what I have mentioned, the differences between this and Nitela, 

 excepting size, are not very marked. Expands one inch. Types, two examples from 

 Chicago, Illinois." 



When I attended the annual meeting of the A. A. A. S. at Pittsburg, 

 at the end of June and beginning of July last, I took with me, among 

 other things, two of my types of Gortyna Airata. When I showed my 

 specimens to Dr. Holland, he immediately expressed the opinion that 

 these two belonged to Necopina, showing that he also saw the close 

 resemblance to that species. 



When, however, I showed them to Dr. J. B. Smith, he asked me if 

 the flown specimen which Mr. Winn had given to Mr. Bird was of the 

 same species, for if so, the species was Nelita, Strecker. I immediately 

 arranged to visit Reading, in order to see the types of Strecker's species, 

 and upon comparing the types of .^Erata with them, I was forced to the 

 conclusion that Dr. Smith was right. 



I greatly regret having created a synonym, but I have sinned in the 

 best of entomological company, and do not think 1 can be blamed for 

 not having recognized in my beautiful bred specimens the species so 

 inadequately described by Dr. Strecker from a pair of flown dwarfs. 



