682 FAMILY XXIX. — MIRID.E. 



KEY TO EASTERN GENERA OF RESTHENINI. 



o. Head short, vertical, when viewed from the side nearly square at 

 apex; gula short, almost invisible; stricture of pronotal collar in- 

 terrupted at side, not joining base of coxal cleft; second joint of 

 hind tarsi not more than half the length of first. 



I. Platytylellus, p. 682. 

 act. Head longer, declivent, when viewed from the side oblique, produced 

 and narrowed to apex; gula rather long, oblique; stricture of pro- 

 notal collar joining base of coxal cleft; second joint of hind tarsi 

 nearly or quite as long as first. II. Opistheuria, p. 689. 



I. Platytylellus Reuter, 1907, 71. 



Elongate or oblong, opaque, impunctate species having the 

 head short, broad, vertical, immersed in thorax to eyes, vertex 

 without a median groove; eyes prominent, male, less so, 

 female; beak reaching or surpassing middle coxse; pronotum 

 subcampanulate, apex one-half to two-thirds narrower than 

 base, front lobe with collar wide, very prominent, sides obtuse, 

 not margined, hind lobe convex, declivent, its basal margin 

 broadly rounded, hind angles obtuse; scutellum smooth, con- 

 vex, shorter than pronotum; elytra entire, longer than ab- 

 domen, their sides feebly, very broadly, curved, membrane 

 with two cells, the larger one elongate. 



Of the 14 species included by Van Duzee in his Catalogue, 

 eight occur in the eastern states, while four species and a 

 number of varieties have since been described by Knight. Sev- 

 eral of the species are based on color characters alone and part 

 of them will, in time, doubtless prove to be synonymous. They 

 have in the past been mostly recorded under the generic name 

 Resthenia. 78 



KEY TO EASTERN SPECIES OF PLATYTYLELLUS. 



a. Basal joint of antennae not as long as width of vertex. 

 b. Larger, length to end of elytra 8 or more mm.; head wholly black- 

 ish or with a black spot. 660. confraternus. 

 bb. Smaller, length less than 7.5 mm.; head red, its front rarely with a 

 black spot. 

 c. Disk of pronotum with a median red stripe; length of joint 1 of 

 antenna? not more than one and a half times the lateral width 

 of an eye. 



T - Walker (1873, 91) mint ions a specimen of CapstlS ilirisn H.-S. from St. John's 

 Bluff, Fla., as being in the British Museum. China writes that the species is not 

 at present in the .Museum. Van Duzee, in his Catalogue, presumably on the Walker 

 record, gives "Fla." in the distribution notes. Barber (1906, 21s i records P. divisus 

 from Texas, and statrs that it has not been previously reported from the United 

 states, it is therefore not considered in this work. The Capsus incisits Walker 

 (1873, 92), listed by Van Duzee (1917, 1 3 1 2 1 as a Platytylellus, is said by China 

 t Ms. i to be a Paracalocoris. 



