39 



rounded, the edge covered with spinules. Wings violaceous purple 

 posteriorly, dull purple anteriorly, the apex green. After Stoll'. 



Expanse of tegmina, ? 187 ""• (Stoll'). 



West Indies, America (Stoll') ; S. America (Burmeister, De Haan). 



I place the reference to Burmeister here because In his description 

 he says, " k>horum fasligio serrulato.''' 



2. T. albipes (De Geer) Scudder, 



Acridium albipes De Geer, Mem., Ill, tab. 40, fig. 7. 



? " " Goeze, Ent. Beitr., II, 113. 



" " Latr., Gen. Crust, et Ins., Ill, 105. 



Gryllus {Locustd) cristatus var. i? Linn., Mus. Ulr. Reg., 137. 



Not Acridium albipes Burm. 



Anteriorly the crest of the pronotum is quadrilobed, each lobe well 

 rounded, smooth. Wings of a dark " solferino " color, or crimson 

 purple; the whole of the apex, and a narrow band running thence to 

 the base of the wing along the upper branch of anal vein, green, the 

 band tinged with purplish. 



Expanse of tegmina, 9 185"™-; S 130 ■™- 



Surinam (De Geer). 



Para, Rio (Peab. Acad.); Lago Alexo (Mus. Comp. ZooL). 



LOPHACRIS (ilogjo?, ay.(>\.i)- 



Head large, full; space between eyes equal to or surpassing the 

 shorter diameter of the eye ; median frontal ridge broader than the 

 length of the first joint of antennas; breadth of labrum equal to the 

 distance from the edge of dypeus to the upper hmit of the median 

 frontal ridge, or one and one half times the longer diameter of the eye, 

 or broader than long ; lateral angles of front not very distinct, barely 

 divergent. Pronotum tapering but little, the anterior breadth being 

 to the posterior as 1:1.13; angle of posterior border a right angle; 

 median crest forming a regular curve from front to hind edge, but 

 rather more prominent anteriorly; prosternal thorn stout, straight, 

 blunt, rather short, not compressed laterally. Tegmina a little 

 more than four times as long as broad, costal edge narrow, outer 

 border not so obliquely docked as In Tropidacris and Lophncris ; 

 secondary veins indistinct; internomedlan vein simple; basal branch 

 of externomedian vein furcate. Wings short and broad, immac- 

 ulate; cross veins at tip degenerating into an irregular anastomo- 

 sis ; area between first and second branches of anal vein noticeably 

 broader than in the adjoining areas, and divided by cross veins into 



PROCEEDINGS B. 8. N. H.— VOL XII. 28 APRIL, 1869. 



