5^0 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- 57i ) Coccobaphes 



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

 hemelytra subparallel . (p. 569) Lygidea 



9. ( 1 ) 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 thickness 

 of the segment > • • II 



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 bej^ond 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 • • I 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 IS 



Dorsal surface glabrous, highly polished J 8 



