54^ CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



suture and inner angles of the corium; hemelytra sometimes 

 reddish to fuscous. 



Occurs on sedges ; frequently attracted to lights. 



Massachusetts, New York. 

 T. paludum J. Sahlberg. 



Acta Soc. Faun. Fl. Fenn., i, 28, 1875. 



Length 5.2-5.6 mm., width 1. 2-1.5 mm. ; green; antennal seg- 

 ment i except basally, and segment ii, red, segments iii and iv 

 fuscous; hind tibiae red, apices of femora more or less red. 



Occurs on Car ex vesicaria in Finland ; also taken on the same 

 plant in Minnesota by the writer ; frequently attracted to lights. 



Minnesota, New York. 



Trigonotylus Fieber. 



Key to Species. 



1. Head not distinctly elongated between the eyes and. base of anten- 



nae ; eyes usually prominent as seen from above, oval or nearly 



round 2 



Head distinctly elongated between front margin of eyes and base 

 of antennae, the sides at this point parallel ; eyes as seen from 

 above not at all prominent, distinctly longitudinal. Very small 

 slender species, hind tibiae and tarsi reddish, antennae pink confusus 



2. Apices of posterior tibiae, and the tarsi, black tarsalis 



Apices of posterior tibiae not black, tarsi usually reddish 3 



3. Antennal segment i, in length, not greater than distance between 



basal margin of pronotum and a line drawn through middle of 



eyes 4 



Antennal segment i longer, length equal to distance between basal 

 margin of pronotum and a line drawn through point of insertion 

 of antennae ; eyes elongate oval ; pronotum with four longitudinal 

 pale orange stripes, the same often noted on the scutellum and 

 hemelytra . .uhleri 



4. Hind tarsi with segment i slightly longer than remaining two united 



(measured on ventral surface) ; pronotum usually with longitudi- 

 nal fuscous stripes; antennae reddish (at least ordinarily) ruficornis 

 Hind tarsi with segment i slightly shorter than remaining two_ 

 united ; body and antennae uniformly pale brevipes 



T. confusus Renter. 



Acta Soc. Sci. Fenn., xxxvi, No. 2, 6, 1909. 



Length 4.3-5 mm., width .7 mm. ; well described in the key. 



Maryland. 

 T. tarsalis Renter. 



Ofv. Kongl. Sv. Vet-Akad. Forh., xxxii, No. 9, 60, 1876. 



Length 54-6.2 mm., width 1.5 mm. ; pale green to bright green ; 

 apices of posterior tibiae, and the tarsi, black; antennae usually 

 reddish from middle of segment ii to apex of segment iv. 



Breeds on slough grass (Spartina michauxiana) . 



Colebrook, 20 July, 1905 (W. E. B.). 



