74 2 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



19. Third antennal segment pale 20 



Third segment concolorous 21 



20. Pronotum widest behind middle 17. insignitus 



Pronotum widest before middle 18. uniformis 



21. Pronotum widest well behind middle . . . , 16. borealis 



Pronotum widest near middle 19. tuberculifer 



22. Scutellum distinctly pentagonal, broad, sides very strongly and 



sharply elevated, parallel in basal half ; length about 6 mm. or 



more 20. f unestus 



Scutellum otherwise ; length less than 6 mm 23 



23. Third antennal segment about two-thirds as long as second; male 



genital plate fenestrate 24. falleni 



Third antennal segment usually not more than one-half as long as 

 second ; male plate entire 24 



24. Antennae moderately robust, the second segment strongly narrowed 



in basal third 21. lugubris 



Antennae slender, the second segment slightly and gradually 

 enlarged from near base 25 



25. Antennae with two white bands; pronotum widest well behind 



middle 22. abbas 



Antennae with one white band; pronotum widest slightly behind 

 middle 23. uniannulatus 



1. A. aequalis Say. 

 Het. New Harm., 29, 1832. 



Brown, with yellowish markings ; length 8.4-10 mm. A rare 

 species recorded from Maine and Vermont. 



2. A. crenatus Say. 

 Het. New Harm., 28, 1832. 



Brown, with darker markings, antennae and legs yellowish ; pro- 

 notum widely explanate before middle ; abdomen strongly crenate 

 laterally; length 8-1 1 mm. Not as yet reported from New Eng- 

 land although it occurs in Quebec, Ontario, and New York. 



3. A. quadrilineatus Say. (PI. xviii, 40.) 

 Jour. Acad. Nat. Sci. Phila., iv, 326, 1825. 



Dark brown to black, apex of second antennal segment pale, 

 legs annulate ; length 7.5-9 mm. A common species readily 

 recognized by antennal characters. 



Lyme, 29 May, 1910, 30 Apr., 191 1 (A. B. C.) ; Saybrook, 25 Apr., 1913 

 (D. J. C.) ; Hartford, 11 May, 1914 (W. M.) ; South Meriden, 10 Mav, 

 1914 (H. L. J.). 



4. A. ornatus Say. 



Het. New Harm., 29, 1832. 



A rare and very beautiful species recorded from Pennsylvania, 

 Maryland, etc., but not found as yet within our limits. Dark 

 brown, hemielytra and abdomen pale; length 5.4-6.3 mm. 



5. A. robustus Uhler. 



Proc. Bost. Soc. Nat. Hist, xiv, 104, 1871. 



Nearly uniform dark brown; length 5.5-7 mm. A common 

 species with very thick antennae and broad pronotum. The 

 variety insignis Parshley has the corium, apex of scutellum, and 

 postero-lateral margins of pronotum yellowish. 



