No. 34-] HEMIPTERA OF CONNECTICUT: MEMBRACIDAE. 1 73 



1792. Membracis genistae Petagna. Inst. Ent., ii. 617. PI. 9, fig. 2. 



1802. Centrotus genistae Tigny. Ins., 118. 



1833. Smilia genistae German Silb. Revue, iii. 240. 21. 



1839. Oxyrhachis genistae Burmeister. Ent., ii. 133. 2. 



1843. Gar gar a genistae Amyot and Serville. Hem., 538. 



This is an European species which has apparently only recently 

 been introduced into the United States. Its appearance was first 

 called to my attention in the summer of 1919 by Mr. E. H. Gibson 

 who sent specimens for determination. These specimens had been 

 collected by Mr. Edgar L. Dickerson and Mr. H. B. Weiss in New 

 Jersey. Under date of September 15, 1919, Mr. Dickerson wrote 

 that the insect had been observed for a couple of years previous 

 on Caragana arborescens in two nurseries in New Jersey. It 

 seems probable, therefore, that the species was originally introduced 

 into this country on nursery stock. 



The insect was not reported again until March, 1921, at which 

 time Dr. W. E. Britton sent me specimens which had been collected 

 in New Haven, Conn., the preceding summer. 



Gargara genistae may be distinguished at once from Micro- 

 centrus caryae, the only other species of the subfamily Centrotinae 

 found in the New England States, by the fact that in G. genistae 

 the posterior process of the pronotum is long, extending halfway 

 to the end of the abdomen and exposing the scutellum only at the 

 sides, while in M. caryae the posterior process is very short, barely 

 reaching the abdomen, and the scutellum is plainly visible from a 

 dorsal view. 



New Haven, 29 July, 1920 (M. P. Z.). 



Campylenchia Stal. 



One of the two genera of the subfamily Membracinae repre- 

 sented in the State. Distinguished by the fact that the lateral 

 ridges of the pronotal horn are located close to the superior 

 margin of the horn and the inferior half of the horn is not 

 foliaceous. 



C. latipes (Say). 



1824. Membracis latipes Say. Narr. Long's Exp., App. ii, 302. 



185 1. Enchenopa latipes Walker. List Horn. Brit. Mus., 482. 



185 1. Enchophyllum latipes Fitch. Cat. Ins. N. Y., 47. 



1851. Enchenopa antonina Walker. List Horn. Brit. Mus., 488. 



1851. Enchenopa venosa Walker. List Horn. Brit. Mus., 488. 



185 1. Enchenopa frigida Walker. List Horn. Brit. Mus., 490. 



1851. Enchenopa bimacula Walker. List Horn. Brit. Mus., 491. 



1869. Campylenchia curvata Stal (part). Hem. Fabr., ii, 43. 



1876. Enchenopa curvata Uhler. List Hem. West Miss. Riv., 343. 



1877. Aconophora curvata Butler. Cist. Ent., ii, 349, No. 16. 

 1902. Enchenopa rectidorsum Buckton. Mon. Memb., 49. 

 1914. Campylenchia latipes Van Duzee. Can. Ent., 46, 389. 



This species shows a considerable amount of variation in color 

 and particularly in the shape and position of the pronotal horn, 

 and has for this reason been redescribed under a number of names 



