No. 34-] HEMIPTERA OF CONNECTICUT I PHYMATIDAE. 693 



Key to Species. 



Size large, length 8-10.5 mm. ; membrane brown; sides of pronotum 

 deeply notched at middle erosa 



Size small, length 6.5-7.5 mr n. 1 membrane colorless ; sides of pro- 

 notum shallowly notched at middle vicina 



P. erosa (Linnaeus) (subsp. wolffi Stal.). (PI. xvi, 34.) 



Enum. Hemip., v, 133, 1876. 



Yellow ; a band across abdomen at widest part, reddish brown 

 to black ; dorsal surface of head, apical antennal segment, and hind 

 lobe or entire pronotum, sometimes infuscated ; the female always 

 pale, the male generally dark. 



Head longer than broad ; fourth antennal segment in male dis- 

 tinctly longer than second and third together, in female as long as 

 second and third. Length, 8-10.5 mm. 



This species is usually found lurking in flowers, especially those 

 of yellow color like tansy, where it is scarcely visible and finds easy 

 prey in visiting insects. The closely related subspecies fasciata 

 Gray is common farther south, and may yet be found within our 

 limits. It is usually larger, length 9-12 mm., and rather more 

 robust ; in the male the fourth antennal segment is scarcely as 

 long as the second and third together, in the female one-half to 

 one-third shorter. 



South Britain, 1884 (G. F. Pierce) ; Branford, Aug., 1905 (H. W. W.) ; 

 New Haven, 7 Aug., 1905 (E. B. Whittlesey), 7 Sept., 1910 (W. E. B.) 

 (D. J. C.) ; New Canaan, 14 Sept., 1905 (W. E. B.), 5 Sept., 1914 

 (M. P. Z.) ; Durham, 1 Sept., 1909 (B. H. W.) ; Pomfret, 22 Aug., 1912; 

 Wallingford, 9 Aug., 1912 (D. J. C.) ; Essex, 18 Aug., 1914 (W. E. B.) ; 

 Portland, 7 and 10 Aug., 1913 (B. H. W.) ; Lyme, 20 Aug., 1910 

 (B. H. W.) ; Bolton, 28 Aug., 1919, Cromwell, 12 Aug., 1919 (K. F. C.) ; 

 Salem, 13, 19 Aug., 1914 (H. W. Foote). 

 P. vicina Handlirsch. 



Ann. K. K. Nat. Hofm. Wien., xii, 150, 1897. 



Light yellow ; abdomen with transverse black band ; head and 

 pronotum pale to largely black ; corium pale ; membrane colorless ; 

 coloration darker in male than in female. 



Head half as long again as wide ; fourth antennal segment in 

 male about one-fourth longer than second and third together, in 

 female somewhat shorter than these. Length, 6.5-7.5 mm - 



New Haven, 9 July, 191 1 (B. H. W.). 



Family ENICOCEPHALIDAE. 



By Howard Madison Parshley, Sc.D. 



This family includes a moderate number of very peculiar species 



of small size, now known to occur in all the larger faunal divisions 



of the world. They are especially characterized by having the 



head elongate and divided into two parts by a constriction behind 



