OSBORN AND BALL STUDIES OF NORTH AMERICAN JASSOIDEA. 55 



Face moderately long, genae slightly constricted below eyes then round- 

 ing to the middle of lorEe. Suture above the front angulated, front long, 

 rapidly concavely narrowing on basal third, then slowly convexly to 

 clypeus, lorae twice longer than broad. Pronotum finely granulated 

 twice wider than long, half the length within the curve of the vertex, 

 side margin entirely wanting, humeral margin short, rounding, pos- 

 terior margin truncate, long, anterior margin elevated and produced 

 on the middle half, laterally depressed and covered by the vertex. 

 Elytra long and narrow, extending over one-third their length beyond 

 the tip of ovipositor. 



Color: Light-testaceous, sometimes varying to slate color on the 

 elytra, especially in the males. Pronotum testaceous with a dark- 

 brown median line, a small round black spot just behind the middle of 

 either side. Vertex testaceous or yellowish with a median line extend- 

 ing to the angle of the frontal sutures, a pair of round spoLs on pos- 

 terior (superior) margin slightly farther from each other than from the 

 eyes, black, facial sutures testaceous to light slate, nervures andsutural 

 margin light, tips of the claval nervures broadly white with a dark saddle 

 them which interrupts the light sutural line. Below, variable Irom 

 between yellow to black except the genitalia, which are light-) ellow. 



Genitalia: 9, ultimate ventral segment very long on lateral 

 margins, posterior margin deeply circularly excavated from the lateral 

 angle over half way to the base, pygofers narrow, moderately long, 

 slightly exceeded by the oviducts, c^, valve two-thirds as long as 

 width at base, truncate behind; plates long, nearly as wide as the valve, 

 parallel-margined, nearly truncate behind ; pygofers large, inflated, 

 convex, forming a hollow, box-like organ as seen from below, with a 

 nearly square opening, which the plates close like a lid ; seen from the 

 side they are very broad at the base, hollowed out near the middle 

 below and near the top above. 



Specimens are at hand from Can., N. Y. , Va. , U. C, Mich., Ky., 

 la., Kan., Colo., Mex., and Vancouver's Island, indicating a very 

 wide and general distribution. 



Larva: Larvae very similar to those of 4-piinctata; vertex extend- 

 ing upwards and slightly forward as a transverse carina, not deeply 

 lobed. 



Vertex very short, appearing as a transverse carina projecting 

 slightly upwards and forwards, divided by a shallow median excava- 

 tion into two broadl3-rounding lobes. Face very flat, front wedge- 

 shaped with a distinct suture just below the obscure ocelli, very 



