428 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



ample with the fuscous band broad or very broad, at least more than 

 a fifth the length of the whig. Posterior femora mostl}^ black on the 

 disk of the inner face, with one or two light bands. Posterior tibite 

 red with a ^yellowish cloud at the base on the outer side. 



TRIMEROTROPIS LATIFASCIATA Scudder. 

 Trimerotropi>< latifasciata Scudder, App. II, 2d Rept. U. S. Ent. Com., 1880, p. 26. 



Yellowish brown, plain except for the moderately distinct tegminal 

 bands; size large, robust. 



Frontal costa sulcate aboye the ocellus for a xevj short distance, 

 aboye rounded; scutellum of the yertex )>roader than long (female) 

 scarceh' sulcate without a trace of the median carina; median and lat- 

 eral faveolse lightly impressed. Pronotum with the median carina 

 coarse and strong, barely cut by the first sulcus, so that, seen from 

 the side, the crest recalls the genus Arjj/ua; metazone less widened 

 posteriorly than usual, with disk finely and eyenly granulate, with 

 the process obtuse angular, the sides straight, and the tip rounded. 

 Tegmina with the median and basal ])ands directly transverse, very 

 narrow, and well defined; the apical band composed of four narrow 

 transverse groups of annuli, the two basal ones extending nearly across 

 the tegmina. Wings moderatel}^ ample and rather broad, the length 

 being nearly one and three-quarter times the width; apex very slighth^ 

 attenuate; fuscous band broad, being a little less than one-fourth of 

 the wing in width, continued along the posterior border to the anal 

 angle, spur very short, reaching less than a third of the way to the 

 base. Posterior femora yellow, more or less suffused with red on the 

 inner face with three black bands, the median one not larger than 

 the subapical and widely separated from the base; lower sulcus red- 

 dish yellow with one subapical black band, outer face with the sub- 

 apical fuscous band rather distinct. Posterior tibia3 orange red with 

 a j^ellow sub-basal cloud on the exterior. 



Length of body, female, 34 mm. ; length of tegmina. 32 mm. ; length 

 of posterior femora, 161 mm. 



One female, 4,300 feet. Salt Lake Valley, Utah, August 1-4, 1877; 

 determined by S. H. Scudder. Two females, Wallula, Washington, 

 September 1; Lake Point, Utah, August 14. 



The species is apparently a rare one, as it seems to have been reported 

 by no one else except Bruner, and his specimens, I think, belong to 

 Trimerotrop is Jatlc in da . 



TRIMEROTROPIS LATICINCTA Saussure. 

 lYimerotropis laticincta Savssvre, Prodr. ffidip., 1884, p. 169. 

 Large and robust, with very ample wings; color reddish brown, 

 with moderately distinct and broad tegminal l)ands. 



Scutellum shallowly sulcate, with a slight but rather distinct median 

 carina. Pronotum with the metazone finel}^ granulate with a few 



