706 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



segment. Costal area of hemielytra with areoles irregularly 

 arranged in two or three confused rows ; rather broadly oval. 

 Length 3.4 mm. 



Brookfield, 25 July, 1910 (E. L. D.) ; Portland, 15 Mav, 1914 

 (B. H. W.). 



P. brevirostris Osborn and Drake. 



Ohio St. Univ. Bull., xx, 243, 1916. 



Nearly uniform dull brown ; eyes, apical portion of fourth 

 antennal segment, and sternal region darker. 



Rostrum short, scarcely reaching the middle coxae. Length 

 3.3-3.5 mm. 



New Haven, 16 June, 5 July, 1920 (B. H. W.) ; 9 May, 1921 (M. P. Z.) ; 

 Milford, 2 May, 1921 (M. P. Z.). 



Leptoypha Stal. 

 L. mutica (Say). 



Het. New Harm., 2^ ', 1832. 



Grayish brown, with oblique dark band on discoidal area, length 

 3 mm. Occurs in Massachusetts. 



Melanorhopala Stal. 



Species of elongate depressed form, the hemielytra flat or show- 

 ing only the slightest convexity ; antennae usually rather long and 

 slender, the third segment usually cylindrical, usually somewhat 

 curved and enlarged toward the apex in varying degrees. Prono- 

 tum tricarinate ; hood small and not produced anteriorly ; paranota 

 narrow, uniseriate, reflexed vertically or against pronotal surface. 

 Hemielytra in the long-winged form widely overlapping and 

 broadly rounded at apex, in the short-winged form very slightly 

 overlapping, acute and distinctly divaricate at apex ; main veins 

 distinctly costate ; costal area usually uniseriate, sometimes irregu- 

 larly biseriate ; subcostal area biseriate. A single species occurs 

 in New England. 

 M. clavata Stal. (PI. xvii, 3.) 



Enum. Hemip., iii, 130, 1873. 



Yellowish brown; eyes, enlarged apex of antennae, tarsi, ros- 

 trum, and some of the main hemielytral veins, dark brown. 



First antennal segment longer and thicker than the second ; third 

 slender, enlarged at apex ; fourth conical, narrower than third at 

 apex. 



This species is occasionally taken in sweeping. It is peculiar 

 among the Tingidae in exhibiting sexual dimorphism in the struc- 

 ture of the antennae. In the male the third segment is but slightly 

 enlarged at apex, in the female very strongly so. In the short- 

 winged form the pronotum is reduced in area, the sides straight, 

 the disk flat, while the hemielytra are somewhat shortened, the 

 lateral margins curved, the apices acute and extending distinctly 

 beyond the abdomen. 



