NO. 34.] HEMIPTERA OF CONNECTICUT I MEMBRACIDAE. 181 



Van Duzee (Catalogue of Hemiptera, p. 529) considers this a 

 variety of the preceding and such may prove to be the case. 



This form is abundant throughout eastern United States and is 

 common in New England as indicated by locality records. 



It may be distinguished from A. tartar ea by the hyaline tegmina 

 with thin veins and by the fact that in semicrema only the anterior 

 part of the pronotum is black, the posterior half being green or 

 greenish, so that the general appearance of the insect suggests its 

 specific name. 



Very little is known of its life history. 



Hosts : Hop-tree, giant ragweed, locust, white oak, soapwort. 



Cornwall, 17 July, 1921 (M. P. Z., B. H. W.) ; North Haven, 4 Sept., 

 1921 (B. H. W.). 



Micrutalis Fowler. 



Closely related to the preceding genus but distinguished by 

 having only four apical cells in the tegmina with the veins very 

 obscure. Two species are found in the State. 



Key to Species. 



Size large, 4-5 mm. ; anterior part of pronotum black dorsalis 



Size small, less than 4 mm. ; entire pronotum usually black calva 



M. dorsalis (Fitch). 



1 85 1. Tragopa dorsalis Fitch. Cat. Ins. N. Y., 52. 



1856. Acutalis dorsalis Fitch. Rept. Ins. N. Y., iii, 390. 



1903. Horiola dorsalis Buckton. Mon. Memb., 158. 



1908. Micrutalis dorsalis Van Duzee. Stud. N. A. Memb., 53. 



The commonest and largest species of the genus. The first 

 Connecticut record which has been seen for the species was that 

 by Mr. Woodruff whose field notes record that it was taken while 

 "beating clematis." Its life history is not known. 



Hosts: Locust, wild grape, hickory, clematis. 



Litchfield, 17 Aug., 1912 (L. B. W.) ; Cornwall, 17 July, 1921 (M. P. Z., 

 B. H. W.). 

 M. calva (Say). (PI. iv, 11.) 



1831. Membracis calva Say. Jour. Acad. Nat. Sci. Phila., vi, 242. 



1834. Membracis melano gramma Perty. Del. An. Art., pi. 35, fig. 10. 



1835. Smilia flavipennis Germar. Silb. Rev., iii, 240. 



1846. Acutalis flavipennis Fairmaire. Rev. Memb., 497, No. 5. 



1851. Ceresa calva Walker. List Horn. Brit. Mus., 1141. 



1851. Acutalis melano gramma Walker. List Horn., Brit. Mus., 591. 



1856. Acutalis calva Fitch. Rept. Ins. N. Y., iii, 391. 



1893. Acutalis Illinoiensis Godging. Can. Ent., 25, 53. 



1907. Micrutalis calva Baker. Can. Ent, 39, 116. 



Common. Very minute, 3-3.5 mm. ; one of the smallest species 

 of Membracidae in the United States; usually strongly marked 

 with black although the color is variable; pronotum shining; 

 abdomen yellowish ; tegmina hyaline, veins very indistinct. 



Hosts: Wormwood (especially the species Artemisia annua), 

 soapwort, sycamore, red-bud. 



