— 17— 



While collecting in Middlesex Co., N. J., last summer, after beating 

 a grape vine I found the species cyanella and quercata both in the net. 

 This led to a careful search of the vine. I found the two species in large 

 numbers flying about in company, and after watching them for nearly 

 an hour was rewarded for my patience by the happy discovery of the two 

 in copulation. 



Continuing my search upon this and other vines in the vicinity I 

 succeeded in capturing twenty-two pairs all copulated. 



This proves Dr. Horn's surmise to be correct, that cyanella is the 

 female form of quercata, and thus one of our prettiest species is lost to us, 

 as has often been the case before, by uniting its fortunes with those of a 

 male. I am now more strongly than ever of the opinion that the species 

 viridifrons and viridicorms bear this same relation to each other, and that 

 among the numerous aliases of cEneogaster the female will be found. 



It is to be hoped that other collectors, with myself, will search for 

 the species of Anlhaxia next season, and endeavor to establish their re- 

 lationship to each other. 



Book Notices. 



In Part III of Tr. Ent. Soc. London for 1885 there is a note "On 

 two remarkable cases of mimicry from Elopura, British North Borneo", 

 by H. J. S. Pryer; one referring to a Sesiid bearing a close resemblance 

 to a wasp, but not more so than some others of this family, and the other 

 to a Cerambycid (Coloborhombiis fasciatipennis Waterh.), which bears a 

 most remarkable resemblance to a Scolia like wasp. This latter is a very 

 interesting and remarkable instance of protective mimicry. We have in 

 the American fauna several species which in flight may easily be mistaken 

 for wasps, notably in the north Bcllamira scalaris, but when the insects 

 are at rest this resemblance ceases. 



In the Proceedings of the Society at the April Meeting, the following 

 communication deserves notice. 



"Mr. R. M Christy, who was present as a visitor, read the follow- 

 ing note: As requested by my friend Mr. Wm, Cole, I wish to bring 

 under your notice what I think will be regarded as a remarkable obvious 

 case of naturally protective coloring. I was in America in the autumn 

 of 1883, and on the 26th of August, near Carberry, Manitoba, I found 

 a large larva feeding ravenously on the leaves of a small bush {Ekagnus 

 argenha), which is so common on many of the drier parts of the prairies, 

 of the Canadian Northwest. A short search brought to light quite a 

 number of others, all feeding on the leaves of the same bush. These 1 



ENTOMOLOGICA AMF.RICANA. 3 



