25 



slightly full ; hind margin bent at a right angle, the angle broadly 

 rounded. Tegniina with the basal three-fifths pale clay-brown, the 

 apical portion nearly vitreous, the whole very heavily flecked with 

 blackish fuscous, rather lighter apically; these markings are present 

 on the upper area of the closed tegmina only as minute spots or dots, 

 but along the median area, commencing at the very base, they form 

 longitudinal quadrate patches, broadening, becoming less compact 

 and less intense away from the base; the apical half is filled with 

 small, not very unecpial, squarish patches, irregularly and profusely 

 distributed. Wings pellucid, scarcely fuliginous, with a fiiint yellow- 

 ish tinge at the base, all the nervui-es black, excepting at the extreme 

 costal border, where just beyond the middle some of them are ferru- 

 ginous. Hind femora pale hoary blue, with very pale yellowish 

 brown oblicjue rays on the sides, f.iintly and distantly punctate with 

 black, with faint ferruginous outer and superior carina?, the upper 

 surface broadly banded with black in four broken bands ; hind tibiae 

 dusky plumbeous, the upper surface blackish, excepting at the tip, 

 the spines white, with the apical third black. Length of body 45- 

 52 mm.; of antennas (13 est.)-l5 mm.; of pronotum, 9-10.5 mm. ; of 

 tegiulna, 48-53.5 mm.; of hind femora, 25-28 mm. 



8 ?. Island Guadalupe, off Lower California (E. Palmer); San 

 Diego, California (J. Behrens); California (H. Edwards). 

 This insect belongs to the division Schistocerca of Stal. 

 Trimerotropis Vinculata. Ash gray, blotched with dark fus- 

 cous; foveolje of the head distinct, the costaj being prominent through- 

 out ; tip of fostigium with a rather deep circular or posteriorly angu- 

 lated pit having abrupt sides, reaching the margins of the lateral 

 foveolse; antenn;B dark brown, very obscurely annulate with darker 

 and lighter colors. Median carina of pronotum distinct only on front 

 lobe, and cut behind the middle by the transverse sulcus, the hinder 

 portion of the anterior lobe somewhat corrugate; hind border of pro- 

 notum forming a right angle. Tegmina as long as the hind legs, the 

 basal third testaceous, with a fuscous cloud on its apical third, and 

 fuscous dots sprinkled over the rest; middle third ashen, with a fus- 

 cous cloud traversing the entire breadth of the wing in the middle, 

 broadest centrally; apical third pellucid, sprinkled with small fuscous 

 spots, fainter than the previous ones, closely clustered basally, distant 

 and fainter apically. Wings very faint lemon-yellow at base, [)elluciil 

 with black ncrvules at apex, and near the middle a broad band of 

 blackish fuliginous ; it commences on the middle of the costal margin, 



