Ibis DAVENPORT ACADEMY OF NATURAL SCIENCES. 



notum, subattingent, ovate, with rounded subangulate tips, fuscous. 

 Fore and middle femora a little tumid in the male, testaceous, more or 

 less infuscated ; hind femora fusco-testaceous, the outer face very ob- 

 liquely marked with fuscous, sometimes wholly infuscated, subflavous 

 beneath ; hind tibiae very pale sordid glaucous, the spines black on 

 apical half, ii in number in the outer series. Extremity of male ab- 

 domen clavate, considerably recurved, the supraanal plate subhastate, 

 apically strongly acutangulate, nearly plane, the lateral margins slightly 

 raised at the base, the median sulcus pronounced, reaching only the 

 middle of the plate, bounded by sharp and high ridges; furcula con- 

 sisting of a pair of slender, slightly divaricating spines on either side 

 of the base of the median sulcus, but little longer than the last dorsal 

 segment; cerci slender and short, no broader at base than the first an- 

 tennal joint, tapering slightly to the middle and then expanding a less 

 amount, the apical portion forming an ovate, very bluntly pointed pad, 

 faintly sulcate externally and failing far to reach the tip of the supra- 

 anal plate, the whole a little incurved but otherwise straight ; subgen- 

 ital plate small, subpyramidal, scarcely longer than broad, of equal 

 breadth, the apical margin faintly elevated and forming a conical 

 tubercle. 



Length of body, cf, 14 mm., ?, 18 mm.; antennae, d', 5-5 mm., 

 ?, 4.5 mm.; tegmina, cT, 2.75 mm., ?, 3 mm.; hind femora, d, 8.5 

 mm., ?, 10 mm. 



27 d, 22 ?. Mill Valley, Marin Co., Aug. 22; San Francisco, 

 Aug. 19; Berkeley, Alameda Co., Aug. 21; and Baden, San Mateo 

 Co., California, Aug. 24, A. P. Morse. 



Melanoplus ligneolus sp. nov. 

 Plate VIII., Figures 5, 6. 



Of small size and rather slender, testaceous, or sometimes in the 

 female luteo-testaceous, in the former case conspicuously marked with 

 a broad piceous postocular band crossing the prozona, and with piceous 

 flanks to the abdomen, in the latter case preserving only feeble indi- 

 cations of such markings, in both flavous beneath. Head not promi- 

 nent, luteo-testaccous, more or less flecked on summit with fuscous, 

 especially in the male, in a broad median belt; vertex tumid, feebly 

 elevated above the pronotum, the interspace between the eyes half as 

 broad again as the first antennal joint ; fastigium strongly declivent, 



