THE CANADIAN ENTOMOLOGIST. 191 



Being much interested in tliis discovery, I hastened to communicate 

 it to Messrs. Riley and Howard, at Washington, at the same time sending 

 some of the Bohemian material. A reply came, that Mr. Pergande had 

 examined my specimens and also Comstock's types, the result being that 

 my opinion as to the identity was fully confirmed, and A. pint, Comst., was 

 also added to the synonymy ! Mr. Pergande's report was enclosed, and 

 it is so interesting that I will take the liberty of reproducing it here: — 



" Examined A. abietis, Schr., from Bohemia, and compared it with 

 specimens of Comstock's types of abietis, and found that both are abso- 

 lutely alike. Comstock's description of abietis agrees with the characters 

 of the immature female, in which there are no groups of spinnerets; while 

 in the mature female there are plainly five groups of spinnerets, exactly 

 as in the European form. 



" Among the specimens of Comstock's types of A. abietis I came 

 across one specimen, unlike the rest, with but the two anterior groups of 

 spinnerets present ; and found it, after comparing it with the description 

 of his Asp. pijii, to agree with that sj^ecies in every particular. 



" I prepared specimens of his typical Asp.pinia.nd compared them also 

 with Comstock's and the European A. abietis, and found that all three 

 of them agree perfectly in every respect. 



" Those described by Comstock under the name of A.pini, are nothing 

 else than a younger stage of abietis. " 



(i2.) Aspidiotus ancyhis, Putnam. Prof. L. Bruner lately sent me 

 examples of an Aspidiotus, which occurs commonly in the City of Lincoln, 

 Nebraska, only on the soft maple. These I found to agree with A. 

 ancyhis, except for the fact that I could by no means see the grouped 

 glands of that species. Therefore, using Comstock's synopsis (Cornell 

 Report, 1883, p. 56), they would have to be referred to perniciostis; — 

 although they were not quite like ax\y perniciosus I had ever seen, and the 

 circumstances under which they were found were against such a reference. 



I then sent specimens to the Dept. Agriculture, remarking on this 

 anomaly, but stating that I believed they must certainly be some form of 

 ancylns. Mr. Pergande again gave assistance, and found that the lack of 

 grouped glands, as in A. abietis, was simply a sign of immaturity; this he 

 practically demonstrated by discovering among the material I sent some 

 mature females, which presented the five groups of glands, exactly as in 

 typical ancyhis. 



