308 



PSYCHE. 



[August 1892. 



nated; lateral angles prominent, latero-pos- 

 terior rounded. Scutellum rather small. 

 Elytra narrow, lanceolate at apex, the tip 

 acute, appendix wanting; sutural edge 

 straight to the extreme tip ; costal and apical 

 margins continuous; apical areoles five, 

 inner small, oblique, second largest, reach- 

 ing the extreme tip ; third and fourth small ; 

 fifth, or stigmatal, long and usually crossed 

 by one or two transverse veinlets; first and 

 second sectors united by but one transverse 

 nervure, but there are usually three or four 

 connecting the outer claval nervure with 

 the claval suture; all the nervures strong; 

 costa feebly convex. Supernumerary cell of 

 the wings present. Otherwise as in Athy- 

 sanus andAllygus. 



ACINOPTERUS ACUMINATUS 11. sp. 



Fulvous-brown tinged with dull green or 

 yellowish, elytral nervures pale, brown- 

 margined, Length 5-6^ mm. 



Head pale. Front with about eight brown 

 arcs, more or less distinct. Pronotum feebly 

 calloused on the anterior margin, with a few 

 shallow impressions arranged parallel to the 

 edge, more obvious in the males; lateral 

 margin as long as the latero-posterior, 

 acutely carinated ; disc posteriorly obscurely 

 wrinkled. Basal angles of the scutellum 

 with a brownish triangular spot more or less 

 apparent. Pectoral pieces usually more or 

 less invaded with blackish, sometimes pale 

 and immaculate. Legs pale, or suffused with 

 sanguineous. Abdomen pale, frequently 

 black above, excepting the broad lateral 

 margins; infuscated on the basal and apical 

 segments of the venter in the females; 

 slightly suffused with a pale median line in 

 the males. Elytra pale fulvous, frequently 

 whitish hyaline on the disc of the costal and 

 some of the discal areoles of the corium, and 

 on the inner margin of the clavus, the ex- 

 treme apex clouded with smoky or even 

 blackish; nervures pale, edged with brown- 

 ish, the marginal with a fuscous interruption 

 at tip ; claval suture brown. Wings smoky, 



iridescent, nervures fuscous. Genitalia : 

 Male: Valve wanting. Plates long and 

 narrow, a little longer than the last ventral 

 segment, about one-third wider at base than 

 at their obtusely lanceolate, divergent tips. 

 Pygofers twice the length of the plates, nar- 

 rowed and obtusely pointed at apex armed 

 beyond the plates with numerous stout 

 spines. Female : Last ventral segment 

 rather long, hind edge with a shallow median 

 notch, either side of which is a broadly 

 rounded lobe, retreating at the outer angles. 

 Pygofers rather broad, their subacute apex 

 moderately exceeded by the oviduct. 



Described from 5 $ , 3 9 • Maryland, 

 Sept. 29th and Aug. 4th on pines 

 (Uhler). N. Carolina (Osborn). New 

 Jersey (Uhler). Mountains of N. W. 

 Colorado (Gillette). California (Co- 

 quillett). 



In a male from California the lower 

 surface of the femora are black. A fe- 

 male from N. Carolina has the disc of 

 the elytra white-primrose, and all the 

 specimens exhibit considerable varia- 

 tion in the extent of the black markings. 



The following species of Chlorotettix 

 are represented in my collection : 



1. Chlorotettix unicolor Fitch. 



Vertex 2^ time* as broad as long, but little 

 longer at the middle than next the eye ; an- 

 terior margin very obtusely rounded. Front 

 a little longer than broad, width at apex one- 

 third that at the antennae. Cheeks narrow 

 but feebly angled below the eye, forming a 

 very narrow margin beyond the lorae. Cly- 

 peus almost rectangular. Genitalia : Male : 

 Valve short and broad, apical margin round- 

 ed. Plates broad, sides a little concave, 

 apices moderately produced, subacute, slight- 

 ly divergent, with a few scattering spines 

 on the margin. Female : Last ventral segment 



