24 



black bristles. Tegmina rather ilark testaceous, slightly more (cJ) 

 or slightly less (?) than half as long as the abdomen, rather broad, 

 the reticulatiun prominent. Wings scarcely as long as the tegmina. 

 Fore and middle legs, as well as the sternum, blackish; the sides 

 of the femora, under surface of the tibia3 and all but the upper edge 

 of the tarsi, suffused more or less with dark red. Hind femora ex- 

 tending beyond the end of the abdomen, large and tumid, reddish, 

 excepting the blackish tip; hind tibiae and tarsi dark fusco-castaneous. 

 Abdomen black; cerci nearly as long as the abdomen, dark brown, 

 and clothed with black hairs; ovipositor as long as the body, reddish 

 testaceous, with a black base and blackish tip, and a couple of late- 

 ral black lines. Length of body, d, 18 mm., ?, 20 mm.; width of 

 pronotuni, d, 6.25 mm., ?, G.5 mm.; of antenna?, ?, 39 mm. ; of teg- 

 mina, ef, 7 mm., V, 6-7 mm.; of hind femora, d, 12.5 mm., ?, 13.5 

 mm.; of cerci, 9, 13 mm.; of ovij)ositor, 19 mm. 



1 d, 2 ?. Guadalupe Isl., off Lower California (E. Palmer), 

 specimen.? dried after immersion in alcohol. 



Acridium vagum. Size of A. americanuvi (Drury). Head 

 varying fi'om livid to light clay-brown, marked with black; the whole 

 lower half of the head and the region behind the eyes, is heavily 

 blotched with it, in the latter case, mostK aiTanged in oblique specks, 

 while the rest of the face is serially punctate with black, especially 

 on either side of the carinae; on either edge of the frontal costa the 

 black dots are clustered into a straight black stripe, which continues 

 past the eyes over the vertex to the back of the liead ; a black 

 stripe also runs from the lower edge of the eyes to the lower hinder 

 edge of the head (these colours become partially or wholly obliter- 

 ated after immersion in alcohol) ; the vertex is slightly concave, the lat- 

 eral foveolEB flat, equal, punctate, the frontal costa scarcely contracted 

 between the antennae, slightly widening below, a little channelled at 

 and a short distance below the ocellus; palpi livid, flecked with fus- 

 «5ous ; antennae pale cinereous, a little lighter at the tip. Dorsum and 

 whole posterior lobe of pronotum grayish cinereous, or clay-brown, 

 obscurely flecked with longitudinal dashes of blackish fuscous, espe- 

 cially upon the anterior lobe; lower third of lateral lobes fusco-luteous, 

 surmounted by a very broad blackish belt which fades on entering 

 the posterior lobe ; anterior lobe faintly rugulose, posterior coarsely 

 punctate, both with an equal, blunt, not greatly elevated median 

 ridge, cut by transverse furrows in the middle, in the middle of the 

 anterior half and in the middle of the second quarter; front margin 



