SUBFAMILY IX. — PHYLIN^. 927 



half shorter than width of vertex; 2 and 3 dusky red, 2 four and a half 

 times longer than 1, 3 three-fifths as long as 2; 4 dusky, one-half as long 

 as 3. Beak reaching middle of hind coxae. Pronotum twice as wide at 

 base as long, calli indistinct, disk smooth, both it and corium sparsely 

 clothed with very fine prostrate hairs. Length, 3.4 mm. 



Lakehurst, N. J., June 27 (Davis). This is the type locality, 

 and it is not definitely recorded elsewhere. Uhler, in his notes 

 following the description of R. vanduseei says: "A red variety 

 of this insect, but of smaller size, occurs in Maryland, Virginia, 

 North Carolina and Florida." He probably referred to Knight's 

 mitiiatus. This is the only Florida record of a member of the 

 genus. 



IV. Plagiognathus Fieber, 1858, 320. 



A large genus of small, oval, more or less shining species, the 

 males being usually elongate or oblong, with sides subparallel, 

 the females slightly more robust with margins of embolium 

 feebly curved. They have the head wider across eyes than 

 apex of pronotum, its front strongly declivent or subvertical ; 

 tylus narrow, convex ; antennae slender, about half the length 

 of body, joints variable in length as to species, the second 

 always much longer than width of head ; beak reaching or 

 surpassing hind coxae ; pronotum trapezoidal, sides of disk 

 strongly declivent, their margins rounded, not carinate, 

 straight or feebly sinuate ; calli low but distinct, usually more 

 or less confluent, with an impression between the middle of 

 their bases ; hind lobe convex, declivent forward, its hind mar- 

 gin slightly rounded ; mesoscutum rather broadly exposed ; 

 scutellum triangular, equilateral ; elytra entire, surpassing ab- 

 domen, clavus deflected to corium, cuneus deflexed, the base of 

 its outer margin incurved to form a slight notch ; legs usually in 

 great part pale with femora more or less mottled or dotted with 

 brown or fuscous; tibial spines (except in Group A) with a 

 black spot at base ; joint 2 of hind tarsi longer than 3. Thirty- 

 five species and numerous varieties are known from the eastern 

 states. For convenience of study these are separated into three 

 groups. 



KEY TO GROUPS OF EASTERN SPECIES OF PLAGIOGXATHUS. 



a. Tibial spines yellowish or pale brown without distinct black spots at 

 base; general color pale greenish-yellow. Group A, p. 928. 



aa. Tibial spines dark with a black spot at base of each spine, the spots 

 sometimes wanting toward apex of tibiae. 



