12.S8 FAMILY LIV. — RHITCIITD/F.. 



B. crueniains Horn, leiiiith :> iniii., was described from Georgia, 

 Illinois and Texas; />. n'ujrinns ITorn. length 3-3.5 mm., is known 

 fnmi tlio":\Iiddle States." 



Group B. 



key to spfx'ies of gkol'p b. 



(/. Hind fonmr with a tocitli in .'ulditinn to donticles. 

 b. Hind fcninr witli ono tooth and two dciitit-les. 



e. Elytra dnll re(hlisli-y(>llow ; Ixxly hcnoatli hlack, ahdonien reddisli. 



2291. PECTORALIS. 



cc. Elytra entirely hlaek or dark piceous. 

 0. Legs all bLnek. 



c. Scutellnni ronnd, densely elothed with white pubescence. 



2202. A LBOSCUTELLArr s. 



cc. Scntelhnn more or less elongate. 



f. Pubescence of elytra variable in color, grayish; interrupted 

 on intervals, which are coarsely punctured. 



2293. DiSTiNGUENDUS, male. 



//. Pubescence uniform in disposition and color, that of elytra 



very sparse. 2204. calvus. 



dd. Legs bicolored, front and middle ones reddish, hind femora black 



in part. 



g. Abdomen reddish or brow^lish-yellow^ 2295. obtecti's. 



(lil. Abdomen and entire under surface black. 



/(. Pubescence of elytra interi-upted on the intervals by darker 



spots ; spur of hind tibife of normal length. 



i. Thorax roughly punctured; elytral intervals with coarse 



punctures. 2203. distinguendus, female. 



a. Thorax not roughly punctured ; elytral intervals finely 



punetulate. 220G. hibisci. 



/(//. I'nbescence sparse, forming an X-like design; terminal spur 



of hind tibia; nearly half the length of the tibia itself. 



2297. T.ONGISTILUS. 



hh. Hind fcMuur with one tooth and three denticles. 



j. Oval, robust ; black, clothed with grayish hairs. 220.S. musculus. 

 jj. Oblong-oval; black, the elytra in great part rufous. 



2299. EXiGuus. 

 (/(/. Hind femur with a few small denticles only. 



A-. Antenna' not as long as head and thorax. 2.300. SEAriNUiAiM. 



hk. Antenna' longer than the entire Imdy. 2301. maorocerus. 



2201 (7141). Bruchus pectoraeis Horn. Trans. Amer. Ent. Soc, IV, 1873, 



Ohloiig-oval, i-atlier I'obust. Elytra ;ind ididomen dull red, the former 

 sparsely clofheil with silken yellowish pubescence; head, thorax, meso- and 

 nietasterna Iilack: antenn:e black, three basal joints rufous; legs pale 

 rufous. I)as('s of hind femora and til>ia' piceous. Thorax scarcely as wide 



