172 DAVENPORT ACADEMY OF NATURAL "SCIENCES. 



quadrate ( ^ 1, a half longer than the finely punctate metazona. Pros- 

 ternal spine erect, cylindroconical, very blunt; interspace between 

 mesosternal lubes fully half as long again as broad (d) or scarcely 

 longer than broad (?), the metasternal lobes attingent (d) or approx- 

 imate (?) Tegmina slightl}' longer than the ]jronotum, overlapping, 

 apicall}' acuminate, fusco-testaceous. fore and middle iVmora some- 

 what tumid in the male, te.-taceous or fusco-testaceous ; hind femora 

 testaceous or flavo-testaceous, more or less obscurely bifasciate with 

 fuscou'^, the inner and lower faces flavous, the geniculation infuscated ; 

 hind tibiae red. the spines black in the ajjical half, i i-i 2, generally 11, 

 in number in the outer series. Extremity of male abdomen clavate 

 and considerably recurved, the supraanal plate triangular with acutan- 

 gulate ajjex, the Jateral margins thickened and elevated, especially in 

 the basal half, the median sulcus rather broad and subequal, extending 

 over the basal two- thirds ; furcula consisting of a distinct fork, the 

 arms forming a u, fiattened, tapering, parallel and acuminate, cross- 

 ing the basal third of the supraanal plate; cerci rather small, curved 

 upward and scarcely inward, each formed (.>{' a compressed lamina, 

 which tapers rap:dl\ in the basal half to less than half the basal width, 

 the apical half etjual, apically rounded, outwardly feebly sulcate or 

 rather dimpled ; subgenital plate rather small, subconical, of equal 

 length and width, the apical margin strongly rounded as seen from 

 above, feebly elevated and entire. 



Length of body, d", 14 mm , ^ , 18 mm.; antennae, 9, 6 mm.; 

 tegmina, cf , 4-5 mm., + , 5 mm.; hind femora, cJ'? , 9 mm. 



2 J*, I 9 . Brown's Valley, Traverse Co., Minnesota, Oct. 26, O. 

 Lugger. 



This species is closely allied to the geographically distant M. cancri 

 of Cape St. Lucas, differing from it in the greater length of the teg- 

 mina and furcula, and in the form of the subgenital plate ; other dis- 

 tinctions would doubtless appear if we possessed fresher specimens of 

 the southern species. 



Alelanoplus usitatus sp. nov. 



Of about medium size, fuscous, the male with a decided plumbeous 

 tinge, dull flavous beneath. Head not prominent, dull olivaceous or 

 pale testaceous, more or less heavily flecked with fuscous, especially in 

 the female, fuscous above, with a broad postocular piceous band, some- 

 times edged above w ith pale testaceous ; vertex gently convex, scarcely 



