432 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



Pronotuiii with the prozone eonsiderabl}^ elevated and bilobate when 

 seen from the side, the anterior being much longer than the posterior 

 lobe; metazone about one and three-quarter times as long as broad, 

 with the disk finely granvdate and the process a little less or somewhat 

 more than a right angle; lateral lobes with a large tooth. Tegmina with 

 the basal band distinct and usually" solid, preceded l)y a rouged area 

 punctate with fuscous and followed by an unspotted light band wider 

 than itself; median band never quite as well defined as the basal, but 

 larger and subtriangular, l)roader on the posterior margin, followed 

 by a light l)and narrower than the first; distal third occupied by 

 rather luimerous annuli, which imperfectly arrange themselves into 

 three or more narrow, transverse bands. Wings narrow, about twice 

 as long as Avide, with the apex slightly attenuate; fuscous band rather 

 narrow, not exceeding in width one-sixth the length of the wing, nar- 

 rowed distinctly ))ehind the spur, which extends more than half way 

 to the base, continued upon the posterior margin less than half way to 

 the base. Posterior femora with the disk of the inner face not entirely 

 blackened by a stripe which extends nearly to the base; apical half 

 light, with two black bands, the proximal one extending across the 

 lower sulcus and across the outer face; the former has a faint fuscous 

 band proximal to the first and the latter is usually furnished with one 

 or two distinct bands in addition to the one already mentioned and the 

 apical one. Posterior tibia? coral red, with the usual subbasal annulus. 



Length of body, male IT to IS mm., female 24 mm.; length of 

 tegmina, male 20 to 2-i mm., female 24 mm.; length of posterior 

 femora, male 8 to 12 mm., female 12 mm. 



One male, Los Angeles, California, Coquillett, collector; U, S. 

 National Museum. One male, Los Angeles, California, Coquillett, 

 collector; Bruner collection. Two males, Ontario, California. Snod- 

 grass, collector; Stanford University collection. One female, Cali- 

 fornia, Wickhahi, collector; San Louis Valley, California: Brimer. 



TRIMEROTROPIS STRENUA, new species. 



Very closeh" related to Tr'niu'rotrojnx californlrd, from which it 

 difi'ers as follows: 



Scutellum of the vertex broader: median carina distinct. Pronotum 

 with the prozone very slightly elevated, tooth of the lateral lo))es 

 minute; process of the metazone decidedly acute angulate. Tegmina 

 with the basal band very narrow, being three or four times as long as 

 wide, distinct and well defined, median band and apical third as in that 

 species, with the three light bands entirely unspotted and occupying 

 twice as much space as the basal and median fuscous bands together. 

 Wings with the fuscous band rather broad, occupying at least a fifth 

 of the wnng, continued on the posterior liorder rather more (male) or 

 less (female) than half way to the anal angle. Spur short, extending 



