56 THE UNIVERSITY SCIENCE BULLETIN. 



Key to Genera of Saldin^e — Concluded: 



EE. At least the inner vein of the corium de- 

 stroyed toward apex. First area or interior 

 apex of membrane distinctly placed above the 

 apex of the second, very rarely almost touch- 

 ing this. In this case two veins of corium ob- 

 solete. Hemelytra entirely or nearly opaque 

 or sericeo-opaque. Micracanthia. 



AA. Apex of pronotum always distinctly narrower than the head with 

 the eyes. Apical stricture distinct. Callus strongly convex, termi- 

 nated by anterior and posterior deep sulci. Marked with punctures 

 and little longitudinal wrinkles. 

 B. Toward apex of pronotum quite strongly narrowed, sides 

 straight, callus by no means touching lateral margins, leaving 

 a rather broad margin extended a little behind the middle. 

 Hemelytra opaque, only the costal area of corium and em- 

 bolium being shiny. Ocelli slightly distant. loscytus. 



BB. Toward apex of pronotum strongly narrowed, sides more or 

 less sinuate. Callus occupying all or nearly all of the width 

 of the pronotum, leaving only a narrow or very narrow mar- 

 gin. Ocelli very little separated. Lampracanthia. 



Genus PENTACORA Reuter 1912. 



"Body oblong. Eyes slightly converging anteriorly. Ocelli slightly 

 distant or subcontiguous. Tip of rostrum reaching apex of intermediate 

 coxag. Second segment of antenna as long as width of head, or distinctly 

 longer. Pronotum toward the apex moderately narrow, broadly emargi- 

 nate at base. Sides flattened, lateral margins toward apex strongly 

 rounded or forming distinct angles. Callosity by no means touching 

 lateral margins, transverse impression placed behind the middle of the 

 disk, the scutellum, longer than broad, impressions far remote from base. 

 Hemelytra often densely and usually distinctly punctulate. Interior vein 

 of corium furcate toward tip, branches touching suture of the membrane. 

 Membrane marked by five oblong areas, first or interior area moderately 

 produced beyond the base of second. Apex almost attaining apex of 

 second. Third segment of posterior tarsi a little shorter than second, 

 or subequal to it in length. Last ventral segment of female slightly pro- 

 duced, genital segment by no means totally hidden. Type Acanthia 

 signoreti Guer. Three Nearctic species, signoreti Guer., ligatm Say, and 

 hirta Say." 



Pentacora signoreti (Guerin) 1857. 



Salcla siynoi-eti Guerin, La Sagra's His. Nat. de Il'Ile de Cuba, Hemipt., 401, pi. 13, fig. 10. 

 Acanthia signoretii Stal, num. Hemipt., Ill, 148, No. 1. 



"Oval, sand-yellow with black markings, or black with sand-yellow 

 markings, all over minutely sericeous pubescent. Head more or less 

 marked with black between the eyes and behind, omitting the amber 

 ocelli and two spots on the vertex, or with only two small black spots on 

 the vertex; gula with a broad black spot; the emarginated inner side of 

 the eyes generally black. Antennae yellow or pale piceous, the basal joint 

 black beneath and at base; second joint blackish or .dusky beneath; third 

 and fourth sometimes blackish beneath, the latter almost as short as the 

 basal one, the third longer. Rostrum reaching to behind the middle coxae, 

 piceous or black, with the basal joint pale. Face with a longitudinal 

 groove, and the cranium with a few wrinkles and ridges. Pronotum wide, 

 deeply concave behind, with the humeral angles drawn out obliquely into 



