No. 34-] HEMIPTERA OF CONNECTICUT: MIRIDAE. 561 



15. Body above and below clothed with silky, sericeous or tomentose 



pubescence (p. 598) Polymerus 



Body clothed only with simple pubescence, never tomentose 16 



16. Head broad, eyes practically in contact with pronotal angles, hind 



margin of eyes sulcate and forming an arcuate line with base of 



vertex (p. 597) Dichrooscytus 



Head not unusually broad, eyes convex behind and well removed 

 from pronotal angles 17 



17. Antennal segment iv at least equal to thickness of segment ii at 



base; width of collar (measured cephalo-caudally) scarcely 



greater than thickness of antennal segment iv 



(p. 610) Adelphocoris 

 Antennal segment iv distinctly thinner than segment ii at base ; 

 width of collar (measured cephalo-caudally) distinctly greater 

 than thickness of segment iv (p. 610) Calocoris 



18. Rostrum short, scarcely surpassing the anterior coxae 



(p. 607) Poecilocapsus 

 Rostrum longer, at least reaching to posterior margin of middle 

 coxae (p. 607) Horcias 



Tropidosteptes Uhler. 



T. cardinalis Uhler. 



Proc. Bost. Soc. Nat. Hist, xix, p. 404, 1878. 



Length 5.5mm., width 2.6mm.; bright red; antennae, tylus, 

 legs except apices of front and middle femora, hemelytra for a 

 space either side of the commissure, and membrane, black. 



Food plant: White ash (Fraxinus americana) , and occasionally 

 other ash trees ; occurs most frequently on young ash trees. 



Hamden, 28 May, 1911 (B. H. W.), 9 June, 1915 (Q. S. L.) ; Lyme, 16 

 June, 1918 (M, p. Z.) ; Meriden, 3 June, 1910 (W. E. B.) ; New Haven, 

 3 June, 1908 (B. H. W.) ; North Branford, 8 June, 1907 (B. H. W.) ; 

 Yalesville, 27 June, 1907 (B. H. W.). 



Neoborus Reuter. 



Key to Species. 



1. Dorsum practically glabrous 2 



Dorsum strongly pubescent or hairy 5 



2. Rostrum not extending beyond posterior margin of sternum ...... 3 



Rostrum attaining hind margins of middle coxae ; line bordering 



outer margin of radius, widening apically, and curving mesad 

 across apical area of corium, black palmeri 



3. Antennal segment i pale, rarely somewhat dusky 4 



Antennae brownish black; scutellum brownish black, basal angles 



pale ; hemelytra brownish black to piceous. basally on corium and 

 embolium and extending farther along radius, pale or yellowish 



glaber n. sp. 



4. Dorsum uniformly black, cuneus pale except apically ; sometimes^ 



with a small pale spot at base of corium geminus 



Dorsum more or less pale, frequently marked with red, scutellum 

 always with some pale or yellow amoenus 



(a) Chiefly pale, apical area of corium, and frequently marks _ 

 on pronotum, reddish; membrane pale variety amoenus typical 



(b) Chiefly blackish, lateral and median vittae on pronotal disk, 

 scutellum except basal angles and median line at base, and corium 



