442 Annals of the Carnegie Museum. 



30. Stiphra brevirostris sp. nov. 



Most nearly related to S. gibbosa Guerin, from which it differs in its 

 smaller size and much shorter and rounded, instead of truncate, rostrum 

 of the vertex. 



Stature moderately robust. Head strongly constricted back of 

 the eyes, nearly or quite as long as the pronotum, somewhat trans- 

 versely rugose above, smooth elsewhere; the eyes prominent, almost 

 as wide as long, separated above by a space about equal to one-half 

 of their longest diameter; the fastigium of the vertex or rostrum quite 

 strongly depressed, broadly rounded in front, the lateral edges blunt. 

 Occiput longitudinally grooved at middle almost to the]back r margin 

 of the eyes, and from that point forward extends a blunt carina, which 

 reaches the tip of the rostrum. Antennae a little more than twice as 

 long as the rostrum, subclavate, the basal joint less than one-fourth as 

 long as the eyes. Pronotum glabrous, transversely rugoso-punctate, 

 the anterior legs arising about one-third its length from the front, 

 anterior margin a little flaring at sides, roundly and widely emarginate 

 at middle; meso- and meta-notum broadly dilated, also punctulate, 

 the latter strongly arched and rugoso-punctulate, provided with a 

 median and two lateral longitudinal ridges on each side of its disk. 

 Abdomen minutely punctulate, rather robust and tapering but little 

 caudad. Last ventral segment short, compressed. Legs short, the 

 anterior and middle pairs very robust apically. Hind tibiae 13-15- 

 spined externally, 10-12-spined internally. 



General color dark olive-green, the legs paler. Antennae pale at 

 base, black beyond. 



Length of body, o 71 , 38 mm., of head, 7 mm., of rostrum, 0.9 mm., 

 of pronotum, 6 mm., of anterior femora, 4.75 mm., of hind femora, 

 13.5 mm. 



Habitat. — Bom Fim, Bahia, Brazil, "Fazenda de Amoratu, "No- 

 vember 20, 1907, J. D. Haseman collector. The only specimen at 

 hand is the type, a male. It is the property of the Carnegie Museum. 



Family TRYXALID.F:. 

 This is one of the principal families of locusts in most countries. 

 In South America it comes next to the Cyrtacanthacridae (Acridiidae) 

 both in the number of its representatives and their importance 

 economically. In the material here reported upon we find some new 

 forms, including two new genera. 



