294 OETHOPTEEA. 



General colour ferrugineo-testaceous, more or less conspersed and marmorate with fuscous. Occiput and 

 sides of head back of the eyes and lateral lobes of the pronotum marked with piceous. Hind femora 

 externally, above, and internally faintly banded with dull fuscous. Abdomen and front and middle legs 

 conspersed and marmorate with dark cinereous, brown, and dull black ; lunules of the genicular portion 

 of the hind femora piceous, hind tibia? on upper face and apically, along with the two basal joints of the 

 tarsi, coral-red, below basally testaceous strongly conspersed with fuscous. 



Length of body, $ , 20 ; of pronotum 5-15, of tegmina 4, width of tegmina 0-9, length of hind femora 11 , of 

 hind tibiae 9 millim. 



Hab. Lower California, San Jose del Cabo (D. Haines, in coll. Calif. Acad. Nat. 

 Sciences). 



A second specimen, also female, is at hand from the same locality. This latter has 

 been preserved in alcohol and shows a greater amount of mottling than does the one 

 described above. It also has proportionately shorter tegmina, which are less profusely 

 veined. It may, therefore, represent a distinct species. 



2. (Edomerus nigropleurus, sp. n. 



Apparently of about the same size as (E. corallipes, but differing from it in having the anterior margin and 

 the greater portion of the sides of the pronotum, along with the pleura of the meso- and metathorax, 

 and the lunules of the genae of the hind femora, black or dark piceous. The tegmina are shorter and 

 broader and also largely included in the dusky area of the sides of the thorax. Otherwise the general 

 colour is dull testaceous. The pronotum viewed laterally is less arcuate than in the species above 

 mentioned, and has the transverse sulci straight (instead of gently sinuose), and there are decided 

 indications of a median carina, both on the hind lobe and in front. 



Length of body, c?, 20; of pronotum 4*75, of tegmina 3*25, of hind femora 10-25 millim. 



Hab. Lower California, in the vicinity of Cape St. Lucas (Palmer, in coll. U.S. 

 Nat. Mus. t ex Scudder). 



This insect has also been preserved in alcohol and is without antennae. The sub- 

 anal plate is acuminate, short, upturned, and has the posterior edge strongly carinate, 

 the apex entire. Supra-anal plate simple, triangulate; the preceding segment 

 unarmed. Cerci simple, rather broad at the base, evenly tapering, acuminate.] 



SCHISTOCERCA, Stal. 



Schistocerca, Stal, Recens. Orthopt. i. p. 64 (1873) ; Scudd. Proc. Amer. Acad. Arts & Sci. 

 xxxiv. no. 17, pp. 441-476; Gig.-Tos, Boll. Mus. Zool. Anat. Comp. Torino, xiii. no. 311, 

 p. 49 (1898), &c. 



The genus Schistocerca is typically American, and is composed of numerous species, 

 several of which are migratory in habit and more or less destructive to cultivated 

 vegetation. Representatives of the genus occur from Southern Canada in North 

 America to midway between the Rio Colorado and Cape Horn at the southern 

 extremity of South America, while several additional forms are also to be found on the 

 adjacent islands of both the Atlantic and the Pacific oceans. Fully one-half of the 

 known species have been reported as occurring in " Biologia " territory. As the genus 



