OCR Text |
Show 282 same unusually small, the prosternal thorn inclined backward, and the male abdomen scarcely upturned. The fourth consists of a pair of species, P. jucundus and P. enigma, of ' a remarkable appearance; they are clumsy- bodied, the front of the protborax a little tumid, the deflected lobes having their front border nearly as oblique as their hind border, and the hind legs stout; while the antenna; and the prosternal thorn are slight, and the joints of the female abdomen, especially near the tip, are very short and round, and the appendages short, so that the abdomen is almost bluntly rounded at the tip. The fifth group consists again of a single species, P. pictus, remarkable for its variegation and its cylindrical body, in which the prosternal spine is bent backward, the tegmina are more than usually lateral, the vertex of the head not at all prominent, and the hind legs very short. I am not aware that any of these groups, excepting the first, is represented in the Old World or upon both sides of the Rocky Mountains in America. These species may be distinguished by the following table: 1 ( 8) MetaFternal lobes of $ distinctly though not widely separated. 2 ( 3) Tegmina of opposite sides widely separate throughout; sulcus of anterior border of pronotum as distinct above as on the sides pidus. 3 ( 2) Tegmina of opposite sides attiugent, io the middle at least; sulcus of anterior border of pronotum distinct only ou aides. 4 ( 5) Median carina of pronotum equal throughout; hind femora longitudinally striped tellustrti. 5 ( 4) Median carina of pronotnm less distinct on the middle of the anterior than on the posterior lobe; hind femora angularly striped. 6 ( 7) Disk of pronotum more or less depressed on either side of the median carina at the posterior sulcus atupefactts. 7 ( 6) Disk of pronotum not distinctly depressed on either side of the median carina ManhalUi 8 ( 1) Metasternal lobes of £ attingent. 9 ( 12) Anterior lobe of pronotum a little gibbons above. 10( 11) Pronotnm scarcely angled posteriorly; tegmina scarcely longer than, or not so long as, the pronotum .' jucundus. 11 ( 10) Pronotnm distinctly though obtusely angled behind; tegmina distinctly longer than the pronotum enigma. 12 ( 9) Anterior lobe of pronotum of the usual form. 13 ( 14) Median carina of pronotum distinct throughout marginatus. 14 ( 13) Median carina of pronotum distinct only on posterior lobe. 15 ( 16) Tegmin a and wings more than half as long as the abdomen, . plagosns 16 ( 15) Tegmina and wings not so long as the pronotum vivax 16. Pezotettix tellustrti, nov. sp.- Head light brown, mottled heavily above with dark reddish brown, which is absent from a median longitudinal lino on the vertex, and a narrow stripe which runs backward from the summit of the eye; eyes pretty large and prominent, the front edge almost straight; vertex between the eyes as broad as the narrowest part of the frontal costa, and twice as broad as the basal joint of antennie; fastiginm scarcely depressed, expanded a little in front of the eyes; frontal costa sparsely punctate, flat, depressed, and broadened a little at the ocellus, below slightly broader than above; antennse- brownish yellow. Pronotum nearly flat above, broadening regularly backward, the posterior margin obtusely and roundly angulated; median carina slight, but equally distinct throughout; lateral carta ® obtuse, but marked by the abrupt descent of the deflected lobes and by the extension over them of the narrow pale stripe behind the eye; upper surface of anterior and front part of posterior lobe dark reddish brown, extending over the head to the eye; remainder of upper surface dark brownish, obscurely and sparsely punctate; deflected lobes of the color of the head, the upper third or more of the anterior lobe dark fuliginous; all the transverse sulcations, which are distinct, marked with black on the sides and the middle half of the dorsum; prosternal spiue short, stout, blunt, subconical. Tegmina nearly half as lqng again as the pronotum, ovate- lanceolate, the tip roundly pointed; they are dark brown, with small quadrate, blackish, scattered spots, and many of the nervures yellowish, or brownish yellow, over short distauces; wings about half as long as the tegmina. Hind legs yellowj the femora dark reddish brown, or blackish outside, excepting beneath ; above with a basal, an apical, and two intermediate broad patches of. the same; apex, excepting lower geniculate lobe, black; spines of tibi » black; arolium subpyriforni, nearly as long as the claws; abdomen yellow; all but the apical margins of the dorsal segments dark reddish brown, deepening into black. Length of body, 18.5inm ; of antennae, 6.5mm ; of tegmina, 6uim; of hind tibia?, 8.5mm. 1 91 Northern New Mexico, August and September, Lieut. W. L. Carpenter. The narrow pale stripes diverging from the summit of the eye backward give this a very different appearance from the two following species. 17. Pezotettix Marshallii Thorn.- Head light brown, mottled lightly on the face, heavily on the vertex, with brownish fuscous, becoming blackish in a small triangular median spot at the back of the head, and often in a rather broad arcuate band run- |