N0.1215. iiEvjsiox OF nil': okxis tiiimkr()troi>is— McNeill. 411 



very variable either obsolete, except on the front edge of the prozone 

 or more or less developed throughout; metazone about twice as U^ng 

 as the prozone with the disk smooth and the proces.s obtuse^ anguhite 

 its margins slightly sinuate and tip shar]); lateral lobes with the poste- 

 rior angl(>s rounded, oi' with a slight tooth, hut then the lower marcnn 

 is .strongly sinuate anteriorly. Tegmina isabelline without ])ands, 

 sometimes faintly clouded on the basal half; last branch of the radial 

 sector distant from the fork only a little less than half the length of 

 the sector; intercalary vein distant apicalh^ from the median l)y more 

 than (male) oi- several times (fenrale) its width; cul)ital and median 

 forks free or united by a cross vein; area of cubital forks tilled by 

 several rows of irregulai- cells. Wings long, twice as long as wide 

 with the apex attenuated; disk faintly yellow with a fuscous band of 

 variable width, but never as much as one-sixth the length of the wing, 

 continued but a little way on the posterior border, spur extending 

 about half way to the base; apex hyaline. Posterior femora ])ale on 

 the insid(>, with traces of three dark Ixmds, lower surface pale, outer 

 side without distinct bands. Posterior tibife obscure som(^tim(>s with 

 a white sub-basal cloud on the outer side. 



Length of body, male, 24 nun., female, 34 mm.; length of tegmina, 

 male, 25 mm., feuiale, 35 mm.; length of posterior femora, male, 13 

 mm., female, 17 mm. 



Atlantic States, from Virginia northward and along thi^ shores of 

 the Great I^akes west to Illinois. 



TRIMEROTROPIS OCHRACEIPENNIS Blanchard. 



()('dip()(laitr./tr(ireipe))nis Bl.vxciiakd, in (iu_v, Jli.'^t. Fisu; de C'liilc, Zool., VI, 1851, 



p. 77. 

 Ocdipoda cwcn'i^cens Blanchahd, in Gay, Hist. Fisic de Cliiic, Zool., VT, 1851, 



p. 78. 

 Oi'dipoda ])laci.da StIl, Freg. Eiig. Resa, Ins. Orth., 1860, }>. .S44. 

 Trimerotropis j^lacida StIl, Keren. Orth., I, p. 134. — Saussure, rroilr ( )c(lip., 1884, 



p. 172. 



I have been unable to recognize this species among any of the forms 

 I hav'e seen. I append Saussure's description: 



Very Hiniihir to Trimerotropis marUimd, )>ut smaller, with the iiead and i)r(in()tnni 

 nigulose; vertex rugalose; lateral foveohe elonj^ute or triangular. Pronotiun densely 

 punc^tate; erest of the prozone rather prominent and strongly bilobate, with the lobes 

 inclined backward; disk of the metazone granulate, distinctly carinate. Tegmina 

 fusco- trifasciate. Wings with the disk sulphurous, with a narrow arcuate fuscous 

 ))and composed of separate clouds, vanishing upon the posterior margin; two poste- 

 rior areas (median and cubital ) of the anterior lobe very unecpial. Posterior femora 

 a little swollen, banded- var — a, axillary vein of the tegmina confluent with the anal; 

 /', fuscous band of the wing continuous (Oc//rr//'e/p<>wm'.s Blanchard); <-, fuscon^ band 

 in separate spots {Signatipennk Blanchard). 



Length, male, 22 mm.; female, 2S nun.; tegmina, mal(\ 2«i mm., 

 female, 31 mm. 



