359 



apex, with the margins elevated and the submarginal surface depressed, 

 the tylus carinately elevated, reaching to the tip ; front crossed by a 

 broad yellowish band ; base of rostrum pale piceous, the vertex with a 

 broad rounded impression each side, and the occiput with a small 

 depressed dot each side. Pronotum polished, transversely wrinkled, 

 with an arcuated, transverse impressed line behind the anterior margin, 

 and with about three indented points behind each eye. Scutellum dull 

 black, very minutely rastrated, obsoletely, minutely punctured postero- 

 exteriorly. Tibite, tarsi, apex of femora, and tips of the coxte yellowish. 

 Hemelytra shining black, coarsely scrabrous, transversely wrinkled, the 

 anastomosis behind the middle of the corium and a point at the tip of 

 the clavus white. Abdomen black. 



Length, 6 millimeters. Breadth of pronotum. If millimeters. 



Inhabits California. Eeceived from James Behrens. 



This species mimics the Tettigonias of the group of T. hrevis so closely 

 that it might readily be mistaken for one of them ; but on close inspec- 

 tion, the position of the ocelli and the arrangement of the apical cells 

 of the hemelytra will show its affinities to be with the Jassina. 



Only females have thus far been inspected. 



This is another of the striking instances of parallelism which occur 

 in the Hemiptera in forms belonging to families whose affinities may be 

 otherwise remote* 



Bythoscopus, Germar. 



1. B. palUdus. 



Idiocerus pallidus, Fitch, Catalogue N. Y. State Cabinet, 59, No. 5. 



Inhabits the mountains of Colorado in June. Collected by Lieuten- 

 ant Carpenter. In New York, this species affects the willows and poplars. 



2. B. siccifolius. New sp. 



Dull straw-yellow, short, robust. Head very minutely punctured, and 

 transversely wrinkled ; vertex with two median longitudinal approxi- 

 mate brown lines each side, with a black round dot, and against each 

 eye is a brown subtriangular spot, which sends forth a short line to the 

 ocellus, and lower down another slender line running to the front ; the 

 front bounded by a brown, slender line, and each side with a series of 

 brown, short lines placed somewhat obliquely j sutures of the face brown ; 

 the middle line of the labrum and rostrum dark brown. Pronotum 

 minutely, transversely wrinkled, with an arcuated series of indented, 

 short, brown lines and points behind the anterior submargin, middle 

 with two bi'own, approximate lines, each side of which is a less distinct 

 line, and nearer the exterior margin a deeper, brown, curved line ; ante- 

 rior margin broadly rounded, the posterior margin truncated. Scutel- 

 lum transversely wrinkled, with a slender, impressed line crossing the 

 middle and connecting with a submarginal similar line each side, the 

 disk with a large dark brown spot, and a smaller one each side of base, 

 the lateral margins pale yellow. Legs straw-yellow, femora with two 

 brown bands, the anterior and middle tibiee brown benegith, but with a 

 yellow band on the middle, and with the upper side a little clouded with 

 brown ; jDosterior tibise with small brown dots at the base of the spines. 

 Hemelytra yellowish-hyaline, the thick .streaks at base, the sutural and 

 interior margins whitish, the sutures dark brown, as also the interneural 

 lines and inner submargin of the clavus, the nervures paler brown j 

 apical areoles^our in number, three ante-apicals, of which the inner one 

 is shortest and the middle one much the longest. Tergum black, with 



