818 PROCEEDINGS OF THE ACADEMY OF [NoV., 



Cocconotas degeeri (Stai). 



1860. Meroncidium De Geeri Stal, Kongl. Svenska Fregat. Eugenies Resa, 

 Zool. I, Ins., p. 322. [St. Joseph Island, Bay of Panama.] 



Surubres river at San Mateo, altitude 250 meters. February, 1905. 

 (P. Biolley; No. 50.) [A. N. S. Phila.] One male, one female. 



Pirrus. (C. F. Underwood.) [A. N. S. Phila.] One male. 



These specimens have the faces solid black without evident stripes, 

 and the costal region of the tegmina is more or less strongly washed 

 with pale greenish. The departure from the typical form in the color- 

 ing of the face has already been noticed by Griffini.^'' 



Specimens of this species have been recorded from Matachin, Panama, 

 Rio Cianati; lagoon of Pita and Punta de Sabana, Darien, and ^'olcan 

 de Chiriqui. 

 Cocconotus ravus n. sp. 



Types: 6^ and ? ; San Jose, Costa Rica. September, 1902. (C. 

 F. Underwood.) [A. N. S. Phila.] 



Allied to C. castus Brunner, from I\Iexico, but differing in the larger 

 size, the shape of the emargination of the male anal segment, and the 

 shape of the supra-anal and subgenital plates. It can be separated 

 from C. ignobilis Brunner, a near ally, by the shape of the anal seg- 

 ment, the supra-anal plate and the undilated styles. 



Size medium; form moderately robust. Head transversely rounded, 

 strongly declivent toward the fastigium; fastigium short, acuminate, 

 narrow, horizontal, sulcate proximad with the lateral margins elevated 

 into rather low rounded j^rocesses, a])ex acute, compressed, about 

 reaching to the margins of the antennal scrol^es; facial fastigium con- 

 tiguous with the fastigium of the vertex; eyes short ovoid, the point 

 directed ventrad, prominent; antennae contained two (cJ^) to two and 

 a half times ( 9 ) in the length of the body. Pronotum scabrose, 

 slightly flattened dorsad; cephalic margin arcuate, caudal margin trun- 

 cato-arcuate, no lateral angles marked except faintly on the "shoulders," 

 two transverse sulci distinctly marked, the caudal more distinct than 

 the cephalic; lateral lobes distinctly longer than deep, the ventral mar- 

 gin nearly straight, the angles subrectangulate, caudal transverse 

 sulcus extending to the ventral margin in a ventro-cephalic direction, 

 a supplementary sulcus being present caudad of this and extending 

 ventro-caudad to the angle. Tegmina very slightly exceeding the body 

 in length elongate lanceolate, the greatest width being contained about 

 four and a half times in the length; costal and sutural margins very 

 slightly arcuate, the apex rather narrowly rounded; mediastine vein 



'5 Bollett. Mus. Zool. ed Anat. Comp. Torino, X, No. 232, p. 21. 



