OF THE UNITED STATES. 385 



Pangus seems distinct both from Selcnophorus and Harpalus, by tlie form of the ligola 

 and paraglossse: the former is broad, dilated and truncate at the extremity; the paragloc 

 are broad, rounded and llat, not extending beyond the ligula; the mentum is not at all 

 toothed in P. cal iginosu s and P. testaccus, and very obsoletely toothed in Har- 

 palus fraternus Lcc. (Ann. Lye. 5, 185,) which musl be placed in this genus. 1 cannot 

 find any description of this genus in the books; it was proposed in manuscript by Ziegler, 

 many years ago, but as he apparently had no rational motive for founding it, or at least 

 expressed none in any tangible form, systematic authors -rem to have abandoned it as 

 untenable: for this reason I have placed no authority after the genus in the Bynoptic table. 

 The diagnosis of the new species is: 



P. testaceus, elongato-oblongu3, rufo-testaceus, nitidus, thoracc latitudine plus scs<jui bnvi 

 lateribus angnste fortiter deprcssis, subpunctatis, antice rotundatis, angalia posticifl rectis, prominulis, 

 ad basin utrimjuc breviter imprcsso, elytris apice vix sinuatis, striis obsolete pnnctatis, Lnterstitiis 

 subconvexis, 3'° unipunctato. Long. -45. 



Two specimens, Illinois ; Mr. Willcox: one of the specimens has no puncture on the 

 third elytra! space. The sharp posterior angles of the thorax will distinguish this from 



any American species of Harpalus. 



• Bradycellus Er. 



This genus contains many closely allied species, some of which so closely resemble in 

 appearance species of the next genus, that in every instance it is necessary to examine the 

 mentum before deciding on the genus to which any particular species belongs: I have 

 tried without success to find some empirical character to remove this difficulty. 



Although recojinisinii the dillbrencc between this genus and Stenolophus, I was led, in 

 my Catalogue of Gcodephagous Colcoptcra, to consider it as Geobsenus Dej.% which. 

 however, as there remarked, appears, by its brush-like dilated tarsi, to belong to the pre- 

 ceding division of the group. The excellent work of Erichson* afterwards made known 

 to me the real differences of the genera of this group. In this genus musl be placed 

 Harp, dichrous Dej. (tricolor Say;) H.vulpc cuius Say (nigripennis Dej.) and II. 

 obesul ii s Lee. ' \nn. Lye 5, 185:) the first of these, from its general app< arance, was 

 formerly considered by me as a Eury trichus, but the examination of a male specimen Bince 

 obtained, ;md the careful study of the ligula, has shown its relation i" the other Bpecii 

 this genus. 



Stenolophus badii pen n i a Hold. (Proc. Ac.NatSc. 1,202) also belongs in this genua 

 in my Catalogue of Geod. Col. it is falsely placed as Bynonymoua with Trechus ruficrua 

 Kirby, (Faun. Bor. Ann. 17,) which is unknown to me. 



Acupalpus suturalis Lee. | Ann. Lye. l, ill.) also belongs here, but the name being pre- 

 occupied by a European species, it must be called B. n e 1> n I o s u s . M\ i Ii venth pecii - 

 of Geobamus, (G. neglectus,) having no mentum tooth, belongs to Stenolophus. 



Si BNOLOPH1 B Dej. 



Of this genus there arc in my collection about twenty-nine speci ev« ral ol these are 



