Sept.,i9io.] Matausch : Observations on Membracid.«. 167 



3 females, one of which I kept aHve until July 2, but as a rule they 

 died within 2 or 3 days. I collected all the material alive, so as to 

 get the eggs, and to watch the mating of the sexes if possible. I 

 was disappointed in the latter, but eggs were obtained from several 

 females. I observed that they deposited the eggs on the lower part 

 of the stem, either singly or in groups of 2 or 3. These were im- 

 bedded for about half their length in crevices of the bark. The 

 eggs are about i mm. long, somewhat bent, the lower half sonie- 

 w^hat more acutely so, than the upper portion, which is furnished 

 with a rough skin-like cap ending in a point on the convex side, and 

 so placed that it more or less completely fills out the crevice of the 

 park, thus protecting the egg. On examining a lot of females for 

 eggs, I was surprised to find only 6 in each specimen, except in one 

 which had 5. It is hardly probable that this represents the full num- 

 ber of eggs, for it is very likely that they are laid as I suspected 

 in the case of Ccrcsa diceros. I could not determine from the speci- 

 mens in captivity the entire number of eggs deposited by one female, 

 and so I have reserved this question for further observation. 



9. Acutalis semicrema Say. 



The first insects of this species w^ere found July 19, under Sam- 

 bncus on Solidago, both sexes in equal numbers. July 22 I collected 

 2 nymphs, which at first sight seemed to be about half-grown Ceresa 

 pahncri. But the pronotum does not rise vertically above the head 

 as in that species, but is rounded off. It differs also in the closely 

 appressed dorsal projections of its segments, which are totally lack- 

 ing in the full-grown nymph of C. pahncri. One of these nymphs 

 developed into an adult female the following morning, but I had to 

 kill the other to make a drawing. The last examples of this species 

 were collected by me as August i. At this time the females were the 

 more numerous. Mr. E. A. Bischoff also collected 3 females August 

 12. at Irvington, N. J. 



10. Micrutalis calva Say. 



September 26 I collected one female of this species at Irvington, 

 N. J., on a Robiiiia bush, growing in a patch of Solidago. 



11. Carynota mera Say. 



June 20 I found the first nymph on Jiiglaiis. The next morning 

 it moulted, but died shortly afterwards. July 3 I found the first 



