64 rnoCEEDIXaS of the nation a L MISEUM. vol.xx. 



rounded lobes, separated by balf tbeir own diameter; cerci a little 

 shorter thau the siipraaiial plate, siiiiple, conical, but sHghtly more 

 rapidly tapering on biisal than on apieal half, bluntly acuminate; infra- 

 cereal plates broad triangular, scarcely shorter than the supraanal plate, 

 slightly ridged on its margins; last dorsal segment deeply emarginate. 

 so as to be less thau half as broad in the middle as at the sides. 



Length of body, male, 10 mm., female, 24 mm.; antennae, male, 7.2o 

 mm., female, 8 mm.; tegmina, male, 10.25 mm., female, 10 mm.; hind 

 femora, male, 11 mm., female, 12.5 mm. 



Ten nniles, 10 fe uales. Wellesley, Norfolk C-ounty, ^lassachusetts. 

 July 1(>-August 1 (A. P. Morse); New Jersey (U.S.N.M. [No. 711]): 

 Georgia, Morrison. 



This species has been previously recorded only from New Jersey 

 (Thomas, Thler), where Uhler says it is "not uncommon in the cran- 

 berry fields of Atlantic County;"' and from Wellesley, Massachusetts, 

 by Morse, who tells me that his specimens were taken in a very 

 restricted locality, "a steep gravelly hillside, formiiig the terminal por- 

 tion of a part (^f the gravel-plain formation of Wellesley." where they 

 were captiu 'by sweeping vigorously the short-tufted growth of 

 bunch grass, ^±uaropo(jo}i ncoparius, which with other wild grasses and 

 running blackberry vines sparsely clothed the gravelly soil." All his 

 specimens were taken between mid July and mid August. Since writ 

 ing me this, 3Ir. 31orse has found another locality near the previous, 

 whereon July 10 he tork both sexes mature and nymphs; the surround- 

 ings were similar. 



This species is very closely allied to //. pratensis, but differs from it 

 in its shorter tegmina and wings, the more regularly conical cerci of 

 the male, the slightly different form of the supraanal plate and the 

 markings; it is also of a smaller size. 



7. HESPEROTETTIX PRATENSIS, new species. 



(Plate V, tig. 3.) 



<hn)uat<>h(i)ipiii riritlis Thomas (pars), Hei). U. 8. Geol. Surv. Terr., V (1873), p. 156. 

 Hespero.ettix riihlis UilLKH (pars), Bull. U. S. Geol. Surv. Terr., Ill (1877), p. 



795.— r.uuNER (pars), Rep. U. S. Eut. Comiu., Ill (1883), p. 59; Rep. U. S. 



Eat., 1885 (1886) p. 307. 



Head yellowish green, sparsely punctate with fuscous in front, the 

 lower portion of the face inore or less obscured with purplish, a short 

 fuscous stripe depending from the eye, in front of which the callosity is 

 livid; vertex with a more or less distinct, rather narrow, fuscous or 

 blackish stripe, narrowing anteriorly, and ordinarily with a median 

 thread of yellow, the fastigium generally discolored, sometimes and 

 especially in the female reddish. Pronotum scarcely (male) or slightly 

 (female) increasing in breadth from in front backward, equally through- 

 out and with no angle in the middle, yellowish green, occasionally, 

 especially in Southern examples and ai)parently m the female oniy. 



