DESCRIPTIONS OF NEW SPECIES AND VARIETIES. 69 



from that genus and from nil other Chalcididau genera with which I am acquainted, 

 iu the antenna- being hut 5-jointed (scape, plus 4 joints), the scape stout and as long, 

 or longer, than joints 2, 3, and 4 together; joints 3 and 4 small and together as long 

 as joint 2 ; 5 very stout, fusiform, and as long as 2, 3, and 4 together. The legs have 

 the trochanters stout and long, the tibia- not quite so long nor so stout as the femora, 

 and with a long tooth ; the tarsi are 3-joiuted, with the joints of equal length and with 

 the claws and pulvilli sub-obsolete. The abdomen is apparently 6-joiuted, the basal 

 joint wide, the 2nd narrower, 2-5 increasing in width till 5 is as wide as 1. The ovip- 

 o-iror of 9 extends a little beyond the apex, aud starts from the anterior edge of the 

 5th joint. [Third Rept., p. 158. Fig. 72. 



The species was provisionally referred to Trichogramma, aiid I subse- 

 quently proposed for it the generic name Pentarthron (Record of Am. 

 Ent. 1871, p. 8). Pentharthrum has, however, been used by Wollastou 

 in beetles, and until allied genera are better characterized than at pres- 

 ent, the old generic name may be retained. 



COLEOPTERA. 



BRUCHUS FAB/E N. Sp. (Fig. 19,) General color tawny-gray with more or less dull 

 yellowish. Body black tinged with brown and with dull yellowish pubescence, the 

 pygidium and sides of abdomen almost always brownish. Head dull yellowish -gray 

 with the jaws dark brown and palpi black ; autenme not deeply serrate in 9 , more so 

 in $ ; dark brown or black with usually 5, sometimes only 4, sometimes 4 aud part of 

 5 basal joints, and with the terminal joint, more or less distinctly rufous, or testaceous, 

 the color being so slight iu some specimens as scarcely to contrast at all with the 

 darker joints. Thorax narrowed before, immaculate, but with the pubescence almost 

 always exhibiting a single pale medio-dorsal line, sometimes three dorsal lines, more 

 rarely a transverse line in addition, and still more rarely (two specimens) forming a 

 large dark, almost black patch each*side, leaving a median stripe and the extreme 

 borders pale and thus approaching closely to erythrocerus Dej. ; base with the edges 

 almost angulated; central lobe almost truncate and with a short longitudinal deeply 

 impressed median line ; no lateral notch ; scutel coucolorous and quadrate with the 

 hind legs more or lest notched. Elytra with the interstitial lines having a slight ap- 

 pearance of alternating transversely with dull yellowish and dusky; so slight how- 

 ever that in most of the specimens it can hardly be traced : the dark shadiugs form a 

 spot on each shoulder and three transverse bauds tolerably distinct in some, almost 

 obsolete in others, the intermediate row being the most persistent and conspicuous : 

 between these dark transverse rows the interstices are alternately more or less pale, 

 especially on the middle of the 3rd interstitial lines. Legs covered with grayish pubes- 

 cence, and with the tibi;e and tarsi, especially of first and second pair, reddish-brown ; 

 the hind thighs usually somewhat darker, becoming black below and inside, and with 

 a tolerably long black spine followed by two very minute ones. Length 0.09 0.14 

 inch[ = 2 3.5 mm ]. Described from 40 specimens all bred from different kinds of 

 beans. Hundreds of others examined. 



This insect has been for several years ticketed in some of the Eastern collections by 

 the name of B. fabce, or else, what is worse, the corruption of it, fabi. The former 

 iiame has been disseminated by my friend F. G. Sauboru of Boston, Massachusetts, who 

 eays that he received the weevil thus named, together with beans attacked by it, in the 

 year 1832 from Rhode Island. The name was credited to Fabricius, but I can find no 

 notice in any of the works I possess of any European Bruchus fabce, and several of my 

 Eastern correspondents who have access to large libraries have been unable to find 

 any description or allusion to a species by that name. Dr. LeConte has given it the 

 MS name ofvaricornis but as his description will not appear perhaps for years to come 

 and as no comprehensive description has yet been published, I have deemed it advis- 



