45° CONNECTICUT GEOL. \ND NAT. HIST. SURVEY. [Bull. 



Holotype: Female, 16 July, 1916, Conesus Lake, N. Y. (H. H. Knight) ; 

 author's collection. Paratype: Female, 7 July, 1920, New Haven, Conn. 

 (B. H. Walden). 



Plagiognathus cornicola Knight, new species. 



General coloration fusco-brownish or ligneous, calli darker ; 

 antennal segment ii fusco-brownish, blackish at base. 



Male: Length 3.4mm.. width 1.24mm. Head: Width .69mm., 

 vertex .32 mm. ; brownish, lower half of face, and sometimes the 

 front, more or less blackish. Rostrum, length 1 mm., fusco- 

 brownish. 



Antennae: Segment i, length .19mm., black, extreme tip pale; 

 ii, .78mm., fusco-brownish to fuscous, blackish at base; iii, 

 .52mm., fusco-brownish; iv, .33mm., pale fuscous. 



Pronotum: Length .55 mm., width at base 1.12 mm. ; brownish 

 to fusco-brownish, calli darker. Scutellum uniformly fusco- 

 brownish. Sternum and pleura brownish to blackish; ostiolar 

 peritreme pale brownish. 



Hemelytra : Embolar margin very slightly arcuate ; fusco- 

 brownish or ligneous, somewhat translucent; cuneus evenly 

 colored like the corium ; clothed with very fine pale yellowish 

 pubescence. Membrane fuscous, veins paler, a small clear spot 

 bordering apex of cuneus. 



Legs : Fusco-brownish to blackish, apices of femora pale ; 

 tibial spines with rather prominent black spots at base. Venter 

 brownish black to black. 



Female: Length 3 mm., width 1.33 mm.; slightly more robust 

 than the male but very similar in coloration. 



Holotype: Male, 4 July, 1914, Batavia, N. Y. (H. H. Knight) ; author's 

 collection. Allotype : same data as the type. Paratypes : Males and 

 females (32), taken with the types on Cornus. Massachusetts — Males 

 and females (10), 13 July, from Cornus amomum, male and female, 14 July, 

 1921, Arnold Arboretum, Boston (Harold Morrison). New York — Female, 

 2j July, 1915, Batavia (H. H. Knight). Virginia — Female, 27 June, 1915, 

 Mount Vernon (W. L. McAtee), taken on Cornus stricta. 



P. punctatipes Knight, new species. 



Black, antennal segment ii pale but black at base ; legs yellowish, 

 hind femora with two rows of black spots on anterior face. 



Male: Length 3.8mm., width 1.7mm. Head: Width .72mm., 

 vertex .37 mm. ; black, vertex slightly pale. Rostrum, length 

 1.39mm., reaching to middle of hind coxae; blackish, paler on 

 middle segments. 



Antennae: Segment i, length .25mm., black; ii, .97mm., pale 

 to yellowish, blackish at base ; iii, .66 mm., pale yellowish ; iv, 

 .39 mm., pale to dusky. 



Pronotum: Length .67mm., width at base 1.28mm.; black, 

 shining, slightly pale at lower pleural margin. Scutellum, 

 sternum, and pleura, black; ostiolar peritreme blackish, pale 

 indications around margins. 



