THE itM'Hackotts itivrNfi rketi.ks. 225 



KEY TO INDIANA SPICCIKS OK AOABl'S. 



(/. Outer fnint tnrsnl claw n\' iual(> clon^alc and dilated or tliif-kcnod Itc- 

 iioatli. 

 h. Klytra hn.wuisliytdli.w ; Icnirlii "■».;■") nun. kkythhoi'tkiu's. 



/(/(. Klytra black. tiuiMy and densely reticulate; len^'th V,~,1.V, nun. 



430. ANTIIUACINUS. 



It. Outer front claw of nioderato leniitli, not dilated beneath. 



('. Front tarsal claws of male compressed, obtusely dentate at base. 

 (/. Elytra brownish, more or less pale; inner marj^in of hind tibire 

 without punctures; prosternal spine acutely carinate along the 

 middle; length 8.5-9.5 mm. 437. confinis. 



ihl. Elytra black or brassy black; inner margin of hind tibiae with a 

 row of punctures: prosternal spine broad, nearly fiat; length 9- 

 10 nun. 438. seriatus. 



<■(-. Front tarsal chnvs of male simple or acutely dentate. 

 r. Front claws of male simple. 



/. Inner margin of hind tibine without punctures. 

 ;;. Prosternal spine rather narrow, convex. 



/). Elytra dark reddish-brown, very shining, without a submar- 



ginal pale stripe, their surface not coarsely reticulate; 



length 7.5-8.5 mm. 439. punctatus. 



hh. Elytra fuscous with a reddish-yellow submarginal stripe; 



their surface coarsely and unequally reticulate; length 



8 mm. reticulatus. 



</!/. Prosternal spine broad, fiat, polished; elytra black, each with 



a dull yellow submarginal stripe. 



/. Broadly ovate ; under surface reddish-brown ; length 10 mm. 



440. STAGNINUS. 



a. INIore narrowly ovate; under surface black; length 7.5-8 mm. 



obtusatus. 



//". Inner margin of hind tibijie with a row of deep punctures; thorax 



finely margined; elytra uniform piceous. shining; length 9 mm. 



441. gagates. 

 ec. Outer front claw of male acutely dentate near the base, 

 y. Elytra dull yellow with black stripes. 

 k. Body beneath wholly red; first joint of middle tarsi equal to 

 the next three combined : length 9 mm. t.eniolatis. 



7, 7,-. :Meso- and metasterna and coxj^ black; first joint of middle 

 tarsi less elongate ; length 7.5-8 mm. 442. disintegrati'S. 

 jj. Elytra not dull yellow. 



/. Elytra reddish-i)iceous with a greenish or brassy tinge, finely 



punctulate; length 7 nun. 443. .eneolus. 



n. Elytra black. 



m. Form broad, subdepressed ; elytra with a subapical pale 



stripe; length 8.5-9 mm. 444. semivittatus. 



7)111). Form narrow, convex: elytra without pale stripe but with 



numerous irregular punctures; length (3-7 mm. 



445. SEMIPUNCTATUS. 



