44 6 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



juga, lora, and lower margin of genae, black. Rostrum, length 

 1.39 mm., nearly attaining hind margins of posterior coxae, yellow- 

 ish, basal segment and apex blackish. 



Antennae : Segment i, length .25 mm., black, slender apex pale ; 

 ii, .86 mm., pale yellowish, basal one-fourth black ; iii, .64 mm., 

 pale; iv, .39mm., pale. 



Pronotum : Length .61 mm., width at base 1.16 mm. ; black, 

 central area of disk, inner angles of calli, and just before calli, pale 

 or whitish; clothed with rather prominent pale yellowish pubes- 

 cence. Scutellum pale, median line rather broadly, and the 

 mesoscutum, black. 



Hemelytra : Embolar margin moderately arcuate ; white, inner 

 half of clavus, apical half of corium and invading embolium, black ; 

 cuneus pale translucent, apical half infuscated, corium bordering 

 base of cuneus pale ; clothed with rather prominent, pale to yellow- 

 ish pubescence. Membrane pale, veins white, smaller areole and 

 spot bordering base of cuneus clear; apical half with broad fuscous 

 ray just beyond clear spot at tip of cuneus ; larger areole dusky. 



Legs : Pale yellowish ; hind femora with two rows of prominent 

 black spots, anterior pairs with three or four spots forming a line ; 

 tibiae with prominent black spots at base of spines. Venter black, 

 basal half of segments 4-8, pale. 



Mr. Hussey collected the type on Alniis incana. 



Holotype : Female, 5 July, 1920, New Buffalo, Berrien County, Mich. 

 (R. F. Hussey); author's collection. Paratype: Connecticut — Female, 

 7 July, 1920, New Haven (B. H. Walden). 



Plagiognathus rosicola Knight, new species. 



Fulvo-testaceous, antennae, tylus, sternum, and prominent spots 

 on femora, black; length of antennal segment ii exceeding width 

 of pronotum at base ; rostrum reaching to middle of venter. 



Male: Length 4.3 mm., width 1.64 mm. Head : Width .75 mm., 

 vertex .33 mm. ; fulvo-testaceous, tylus black, lora blackish 

 apically. Rostrum, length 2.12 mm., reaching to near middle of 

 venter, becoming blackish on basal segment and apex. 



Antennae: Segment i, length .31mm., black, apex narrowly 

 pale; ii, 1.42mm., black, base and the apex very slenderly pale; 

 iii, i.omm., fuscous; iv, .44mm., fuscous. 



Pronotum: Length .66mm., width at base 1.22mm.; fulvo- 

 testaceous, lower pleural margin slightly paler. Scutellum very 

 slightly darker than pronotum; sternum piceous, episternum 

 except for dark spot above, and pleura, pale to fulvo-testaceous ; 

 ostiolar peritreme pale yellowish. 



Hemelytra: Embolar margin nearly straight, widest just before 

 cuneus ; fulvo-testaceous to f usco-brownish, clothed with yellowish 

 or golden pubescence ; cuneus slightly darker on its disk. Mem- 

 brane rather uniformly fuscous, a pale spot bordering apex of 

 cuneus ; veins fulvo-testaceous. 



Legs : Pale to yellowish and tinged with brown, coxae f usco- 



