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



vertex .34mm. Antennae: Segment i, length i.imm. ; ii, 

 2.6 mm.; iii, 1.36 mm.; iv, 1 mm. 



Holotype: Male, 7 Aug., 1918, Hampton, N. H. (S. Albert Shaw); 

 author's collection. Allotype: Female, 14 July-5 Aug., 1912, Black 

 Mountains, North Carolina (Beutenmuller) ; Cornell Univ. collection. 

 The writer has also seen a third specimen which is in the United States 

 National Museum collection. 



P. onustus Van Duzee. 



Proc. Calif. Acad. Sci., ser. 4, ix, 244, 1920. 



Length male 7 mm., width 2.4 mm.; length female 7.4 mm., 

 width 2.56 mm. Suggestive of eximius but larger and usually- 

 darker colored ; distinguished in the key and by the genital claspers 

 (fig. 149:. 9). 



The writer collected this species most frequently on the bark of 

 hickory (Carya) trees situated in shaded humid surroundings. 



Massachusetts, Maine, New York, Vermont. 

 P. spicatus Knight. 



Bull Brook. Ent Soc, xv, 55, 1920. 



Ad ale: Length 6 mm., width 2 mm. Slightly larger than eximius 

 and more broadly black ; antennal segment ii uniformly black 

 except for the white annulation at base ; front largely black, trans- 

 verse striae evident ; hind femora as in eximius only darker, one 

 distinct pale annulation just before apex ; flagellum and right 

 genital clasper distinctive of the species (fig. 149: 10). 



Female: Length 6.8 mm., width 2.2 mm.; very similar to the 

 male only slightly larger. 



This species comes nearest to cortitectus but is readily distin- 

 guished by the sharp basal spike on the right clasper and by the 

 darker coloration; also approaches onustus but is smaller and 

 more blackish. 



Maine, Massachusetts, New York. 

 P. cortitectus Knight. 



Bull. Brook. Ent. Soc, xv, 55, 1920. 



Male: Length 6 mm., width 2 mm. Very similar to eximius; 

 pale parts of hemelytra more translucent, infuscations paler; front 

 of head transversely striate with fuscous each side of the median 

 line ; antennal segment ii more uniformly fuscous, but with a pale 

 reflection apparent throughout the infuscation; genital claspers 

 and flagellum distinctive of the species (fig. 149: 11). 



Female: Very similar to the male but slightly more robust. 



The writer took specimens only on the trunks of elm trees 

 (Ulmus) where the species is admirably concealed as it crouches in 

 crevices of the bark. 



New Hampshire, New York. 

 P. lacunosus Knight. 



Bull. Brook. Ent. Soc, xv, 56, 1920. 



