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



Holotype: Male, 22 Aug., 1916, Whiteface Mountain, N. Y. (H. H. 

 Knight) ; author's collection. Allotype : same data as the type. Paratypes : 

 Males (3) and females (4), taken with types. Massachusetts — Female, 

 5 July, 1914, Beach Bluff (H. M. Parshley). Female, 28 July, 1916, Pigeon 

 Cove (C. E. Olsen). New Jersey — Male, 15 June, 1908, Lakehurst 

 (Wm. T. Davis). New York — Male, 22 July, 1920, Conifer (H. Osborn). 

 Female. 12 Aug., 1920, Wanakena (C. J. Drake). Nova Scotia — Male, 17, 

 July. Truro (W. H. Brittain). 



Plagiognathus suffuscipennis Knight, new species. 



Color aspect suggestive of Plesiodema pinetellum (Zetterstedt) 

 but tibiae with black spots at base of spines ; antennal segment i 

 and base of ii, black. 



Male: Length 3.4 mm., width 1.3 mm. Head: Width .68 mm., 

 vertex .36 mm. ; black, moderately shining, scarcely paler on 

 vertex. Rostrum, length 1.2 mm., reaching upon hind coxae, 

 yellowish, base and apex becoming blackish. 



Antennae : Segment i, length .23 mm., black, slenderly pale at 

 apex ; ii, .81 mm., yellowish tinged with fuscous, blackish at base, 

 cylindrical, not equal to thickness of segment i; iii, .54 mm., 

 yellowish ; iv, .36 mm., yellowish. 



Pronotum : Length .45 mm., width at base .98 mm. ; dark 

 brownish black ; pubescence yellowish to dusky. Scutellum black, 

 yellowish pubescent, minutely transversely rugulose ; mesoscutum 

 moderately exposed, black. Sternum, pleura, and ostiolar 

 peritreme black. 



Hemelytra : Embolar margins distinctly arcuate ; uniformly 

 brownish translucent, yellowish pubescent, slightly shining. Mem- 

 brane uniformly pale fuscous, margins appearing slightly darker, 

 veins yellowish brown. 



Legs : Yellowish testaceous ; coxae fuscous except apices ; 

 femora with two series of fuscous spots on anterior face, a group 

 of six or eight spots on apical half of posterior face ; tibiae yellow- 

 ish, spot on knee, spines and small spot at base of each, blackish. 

 Venter black, moderately shining, clothed with very fine pale 

 yellowish pubescence. 



Female: Length 3.2 mm., width 1.37 mm.; very similar to the 

 male in coloration but in form more robust. 



Food plant : Picea mariana. 



Holotype: Male, 11 July, 1914, Rochester Junction, N. Y. (M. D. 

 Leonard); author's collection. Allotype: same data as the type. Para- 

 types: Female, 11 July, female, 18 July, 1914, topotypic (M. D. Leonard), 

 collected on spruce (Picea). Maine — Male, 26 July, 1920, Peaks Island 

 (G. A. Moore). Minnesota — Males and females (32), 12 Aug., 1922, 

 Beaver Dam, Cook County (H. H. Knight), on Picea mariana. 



Microphylellus Reuter. 



Key to Species. 



1. Hemelytra uniformly blackish 2 



Hemelytra more or less pale ; embolium, cuneus, and basal half of 



