AMERICAN COLEOPTERA. ' 197 



more slender at base and very suddenly flexed or arcnate. The an- 

 terior tibial spur is stouter in the female. 



€. maculosus, Knocfa. 



Occurs in the Middle States and Canada. 



BihllograpTiy. 

 TKICHirS, Fab. 

 T. piger, Fab., Syst. Ent, p. 40; Gory et Perch. Mon., p. 89, pi. 10, fig. 5, 

 Schaum, Ann. Fr., 1849, p. 292. 

 Drummondi, G. et P. Mon., p. 88, pi. 10, fig. 4. 

 rotundicollis, Kby., Fauna Am. Bor. IV., p. 138, 9- 

 T. texanus, Horn, n. sp. 



T. affinis, G. et P. Men., p. 93, pi. 11, fig. 1 ; Schaum, loc. cit., p. 293. 

 bibens, % var. d Burm., Handb. III., p. 275. 

 mutabiiis, Schaum, Ann. Fr., 1844, p. 400, pars. 

 piger, j: var. b Schaum, Germ. Zeitschr. II., p. 413. 

 variabilis, var. a Schaum, Germ. Zeitschr. III., p. 240. 

 assimilis, Kby., Fauna Am. Bor. IV., p. 137. 

 viridans, Kby., Fauna Am. Bor. IV., p. 137. 

 bistriga, Newm., Ent. Mag. V., p. 170. 

 T. bibens, Fab., Syst. Ent., p. 49; G. et P. Mon., p. 93, pi. 11, fig. 2; Burm., 

 Handb. III., p. 754. 

 bidens, 01. Ent. I. 6, p. 62, pL 10, fig. 87. 

 T. viridulus, Fab., Syst. A pp., p. 820; G. et P. Mon., p. 94, pi. 11, fig. 3; Schaum, 

 Ann. Fr., 1849, p. 293. 

 lunulatus, Fab., Syst. Ent, p. 41; G. et P. Mon., p. 90, pL 10, fig. 6. 

 bibens, % var. b Burm., Handb. III., p. 755. 

 mutabiiis, Schaum, Ann. Fr., 1844, p. 400, pars. 

 variabilis, var. b and e, Schaum, Germ. Zeitschr. III., p. 240. 

 virens, Linn., Syst. Nat. Ed. Gmel. I. 4, p. 1584. 

 T. delta, Forst., Cent. Ins. I., 1771, p. 7 ; G. et P. Mon., p. 91, pi. 10, fig. 7 ; Burm., 

 Handb. III., p. 748. 



GNORimUS, Lep. 

 G. maculosus, Knoeh, Neu. Beytr., p. 109, pi. 2, fig. 2; Burm., Handb. III., p. 

 727; Schaum, Ann. Fr., 1849, p. 291. 

 Bigsbyi, Kby., Fauna Bor. Am. IV., p. 136. 

 dissimilis, G. et P. Men., p. 102, pi. 2, fig. 6. 



