56o CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Tribe CAPSINI. 



Key to Genera. 



1. Pronotum punctate, sometimes only very finely punctate but usually 



distinctly so ; strongly shining, calli usually prominent 2 



Pronotum impunctate, or with fine aciculate punctures only 9 



2. Antennal segment ii linear or practically so 3 



Antennal segment ii clavate; juga tumidly convex; vertex broad, 



transversely striolate each side near eyes; short oval, convex, 

 black species (p. 571) Capsus 



3. Antennal segment ii distinctly thinner at base than apex, some- 



times sublinear but then distinctly thinner than segment i 4 



Antennal segment ii linear although noticeably thickened, nearly 

 as thick as segment i, entirely sublinear (male) or slightly anten- 

 nuate toward base (female) ; both segments bearing heavy black 

 pubescence 8 



4. Pronotum between calli and anteriorly before collar, punctate ... 5 

 Pronotum between calli and anteriorly before collar, impunctate, 



subelevated 7 



5. Lateral margins of pronotum carinate, form more ovate 6 



Lateral margins of pronotum ecarinate, form more elongate and 



sub-parallel , (p. 567) Xenoborus 



6. Antennal segment i distinctly thicker than segment ii, both seg- 



ments black; color, red and black (p. 561) Tropidosteptes 



Antennal segment i slender, scarcely equaling thickness of seg- 

 ment ii at apex ; if colored reddish, then antennal segments i and 

 ii pale or yellowish (p. 561 ) Neoborus 



7. Frons transversely striolate, dorsum practically glabrous ; rostrum 



attaining base of seventh abdominal segment .... (p. 572) Platylygus 

 Frons nonstriolate, but if so, then the dorsum distinctly pubescent; 

 rostrum rarely extending beyond tips of hind coxae . . (p. 572) Lygus 



8. (3) Vertex convex, polished, carina nearly obsolete; form broad 



and rather convex, distinctly widened behind middle ; large red 



species (p. 571 ) Coccobaphes 



Vertex with base more flattened, distinctly carinate ; body oblong, 

 hemelytra subparallel (p. 569) Lygidea 



9. ( I ) Antennal segment i thickened and clothed with numerous flat- 



tened hairs (p. 615) Neurocolpus 



Antennal segment i devoid of flattened hairs _ 10 



10. Pronotum with two subexcavated, opaque black spots situated 



behind the callosities ; antennal segment i clothed with long black 



hairs and setae (p. 610) Paracalocoris 



Pronotum without black spots, or if present, superficial and seg- 

 ment i of antennae without prominent long black hairs or_ setae ; 

 length of hairs on antennal segment i rarely exceeding tliickness 

 of the segment _ n 



11. Antennal segment ii strongly incrassated, fusiform 



(p. 615) Garganus 

 Antennal segment ii linear, or only very slightly thickened at tip 12 



12. Hind femora long, extending much beyond tip of abdomen, flat- 



tened, broadest before middle and tapering to more slender at 



apex (P- 615) Phytocoris 



Hind femora shorter, not . or scarcely extending beyond tip of 

 abdomen ^3 



13. Segment i of hind tarsi shorter than segment iii 14 



Segment i of hind tarsi distinctly longer than segment iii 



(p. 614) Stenotus 



14. Dorsal surface distinctly pubescent, opaque or nearly so i."? 



Dorsal surface glabrous, highly polished 18 



