| OCR Text |
Show 281 PLAGIOSTIRA ( tr/ Aytog, arapa), nor. gen. Head of moderate size, well rounded, more of the hinder part than usuat'& Qifcptfte" heneath the pronotum, which is slightly expanded to receive i t ; the projectiq^ p^ t) # JC t h e vertex rather, slight, narrow, tapering, deeply cleft transversely bej. vje^ n ffl^ a n ten use ; eyes round, small, rather prominent. Pronotum short, equal, shallow:'& t{ a n d depressed above, the sides nearly vertical; dorsal and deflected lobes sepa^ ljejd v e r y prominent, but obtusely- rounded, transversely wrinkled carina*, subobsqtQ^& ji^ r i o r l y ; anterior margin straight, posterior margin broadly rounded, next the' s l i g h t l y excised; dorsal surface flat, depressed, with a very slight longitng' pressed line, a transverse, slightly arcuate, broad furrow just behind the midp similar but narrow furrow near the anterior margin, the latter extending nea, t h e deflected lobe; between these two furrows the dorsum is slightly tumi< J fleeted lobes are exceedingly shallow, deepest at about the middle, but scafr „ t h i r d as deep as long, very obtusely angled, and a little rounded at this point, kite ltayer. margin a little oblique, and meeting the front margin sharply at a little mot$} t& an a r i g h t angle, the posterior margin scarcely convex, nowhere excavated; prosternnm unarmed. Tegmina sqnamiform, densely reticulated, not gibbous. Fore tibi<$) w3th a s i n g l e outer row of . four spines on the anterior face; middle and hind tibi ® with a similar double row of nearly opposite spines on the outer surface of the former and on t h e inner surface of the latter; hind legs very slender, and not remarkably long. Mesosternnm and metasternum, as well as all the coxte, bluntly mucronate laterally. Abdomen bluntly ridged above, but not carinate. Supraanal plate acutely triangular w i t h apically submucronate lateral swellings occupying most of the base. Ovipositor as l o n g as the body, straight or nearly so, not serrate at tip; subgenital plate rather deeply and very angularly excised at apex, otherwise simple. The male unknown. T h e shallow, flat, quadrate pronotum, carinate laterally only, the anterior portion protecting the head, together with the slender femora and sharply angulate stfpria^& L p l a t e , are striking features of the genus. ) ( J 10. Plagiostira albonotata, ndv. sp.- Very pale brownish yellow, the face paler, the - whole marked conspicuously with chalky white; a transverse, faint, white stripe foll o w s the lower edge of the cheeks; another, broader and more distinct, starts at the lower edge of the eye and passes backward along the lower margin of the pronotum nearly to the hinder edge; another runs baok from the top of the eye to the! first transverse sulcus of the pronotum; the middle of the deflected lobes of the pronotum is more or less clouded with i t ; dashes occur on prominent points on the pleura and onter face of the ooxcB; the top of the head bears a pair of diverging longitudinal streaks, equidistant from each other and the eyes; the middle dorsal lobe of the pronotum has two small round spots at the middle of the sides, and two other smaller opes in front of and within them ; the posterior lobe has a broad longitudinal dash ifv Hie middle of either lateral half; and the abdomen has a pair of dorso- pleural, subcokr^ noas streaks, and a pair of pleural, discontinuous, oblique streaks, the former wij; minute round spot of the ground- color at the distal end of the streak of each segnT ' tegmina dark brown*, the fine reticulations paler; wings shining black, nearly as 1 as t h e tegmina. The vertical process of the head is very slightly sulcate long n a l l y ; the ovipositor is scarcely curved downward, equal nearly to the tip, taperiifg'to a very fine point. Length of body, 2l. 75mm; of pronotum, 7.9rara ; of tegmina, i w fi of hind tibia? ( which are longer than the femora), 18.2mm ; of ovipositor, 23.5mm. * ,.'/ 1 9 , Northern New Mexico, August, September, Lieut. W. L. Carpenter. / t^ j 11. Another species of this group ( Dectioidce) was brought from the same locality la the last, but in too immature a oonditiott to determine. v 12. A species of Phyllophoridw, of a genus not yet recognized in the United Staj$£ was obtained at Los Angles, Cal., by Win. Soiumers, No. 822; but it is iu so pod?:,# condition that it is better to await further material before description. ./: ACRYDII. w\ 13. Acridium ragum Scudd.- 2 $, Santa Barbara, June 10, Dr. O. Loew, No. 9ijrfo Mojave Desert, J. Thompson, No. 826. ^ 14. Caloplenus spretus Uhl.- I £, X 9 f Taos Peak, Sangre de Cristo Mountains! Northern New Mexico, at a height of 13,000 feet ( above timber- line), in July, Lieut. yK L. Carpenter. r',/ I 15- Caloptenus minor Scudd.- 1 <£, Southern Colorado, June 11- 20, Lieut. W. L. Carpenter. f ; nI The species of Pesotcttix in this collection fall into five very distinct groups. The first comprises those of Caloptenoid form and structure, like most of those that have been hitherto described. The second comprises but a single species, P. marginatum, remarkable for the simple pronotum, inclined face, and prosternal spine. A third com^ prises also but a single species, P. vivax, in which the head is much broader and higher than the rest of the body, the antenna? are long and rather stout, the first joint of the |
