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297. 

 CHOROSOMA ARUNDINIS. 



Order Hemiptera. F am. Core'idse Leach. Corislse ia/. 



Type of the Genus, Chorosoma Arundinis Curt. 

 Chokosoma Nob. — Lygseus Burrell. 



Antennce inserted on each side the head, considerably before the 

 eyes, as long as the fore legs, rather tapering and clothed with 

 depressed hairs ; 5-jointed, basal joints parallel, rather long and 

 the most robust, 2nd the longest, 3rd nearly as long, 4th cup- 

 shaped, 5th stouter, longer than the basal joint (4). 

 Labrum longer than the basal joint of the lip, slightly pubescent, 

 nodiform at the base, slender and acuminated at the apex (3). 

 Mandibles and Maxillce, setiform strong and enclosed in the 

 Xa6i«m which is as long as the head and thorax and applied close 

 to the breast when at rest (2), slightly pubescent and 4-jointed, 

 basal joint the broadest, the same length as the 2nd ; 3rd and 

 4th shorter, of equal length, the former indistinctly articulated, 

 the latter the slenderest, sublanceolate (2*). 

 Male smaller than the female. Head elongate-ovate, produced in front, 

 the sides forming shafts for the antennce. Eyes lateral globose and 

 prominent. Ocelli two, seated at the back part of the head (1). 

 Thorax as long as the head, subconic, truncate and depressed. Scu- 

 tellum rather large and triangular, considerably concealed by the 

 thorax. Elytra much shorter than the body, membranous at the apex 

 with a few longitudinal nervures at the base, an areolet at the centre 

 and a larger cell above. Wings short, very thin, tlie nervures obscure. 

 Abdomen very long, as broad or broader than the thorax, sides 

 slightly convex, back depressed, terminated by a subquadrate process 

 with a conical lobe on each side in the male (5), and by a tube in the 

 female. Legs simple slender, hinder pair long. Tibiae as long as 

 the thighs, thickened and pilose at the apex. Tarsi half the length of 

 the tibiae, triarticulute, basal joint long, very pilose beneath, 2nd and 

 3rd very short of equal length (6). Claws not large, bent and acute, 

 with a membranous appendage at the base of each (6 (/). 



Arundinis Nob. 



Pale and rather dull ochreous, punctured and slightly clothed 

 with short rigid bristles. Antennae and sides of head with a rosy 

 tinge. Eyes and ocelli reddish. Clypeus with 4 abbreviated striae. 

 Thorax with a slightly elevated line down the centre and an im- 

 pression near the posterior angles which are raised. Scutellum 

 somewhat rosy with an elevated line down the centre and a black 

 stripe on each side. Abdomen sparingly punctured, with 2 black 

 abbreviated stripes down the back, attenuated towards the apex, 

 sometimes united at the base, in others leaving a greenish stripe 

 down the centre. Elytra with the costa thickened and ochreous, 

 base of the same colour, the nervures rosy, with a black dot at the 

 inferior basal angle. Wings with a black dot at the base. Pos- 

 terior tibiae black on the inside at the apex, the basal joint of 

 the tarsus beneath, the terminal one and Claws black. 



In the Cabinets of Mr. Paget, Mr. Davis, and the Author. 



