﻿733. 

 IDIOCERUS MACULIPENNIS. 



Order Honioptera. Fam. Tettigonidffi. 



Type of the Genus, Idiocerus stigmaticalis, Lew. 



Idiocerus Lewis, Curt. 



Antenna inserted on each side of the face towards the lower 

 part of the eyes, shorter than the head, setaceous, triarticulate, 

 2 basal joints stout and subovate, 3rd long and setaceous, with 

 2 bristles at the base, terminated by an ovate compressed club 

 in the male (4), with a bristle or spine at the apex : seta sim- 

 ple in the female (4 ? ) . 

 Labrum slender sublanceolate (3). 



Mandibles long bristles (*). Maxillce half as long again (?n), 

 uniting in the rostrum. 



Labium short triarticulate, basal joint concealed, the shortest 

 and broadest, 2nd the longest, 3rd oblong, the apex ciliated. 

 Head broad, crown short, sublunate, the forehead convex {\) ; face 

 trigonate, convex (1 (^) : eyes very remote and prominent, large 

 and hemispherical : ocelli 2, very minute, moderately remote and 

 placed above the antenna. Thorax transverse, ovate-lunate, nar- 

 rower than the head : scutel trigonate. Abdomen short and sub- 

 trigonate, apex of the male furnished with a curved process inclosed 

 between 2 others, with 2 long membranous lobes outside, ciliated at 

 the apex : female with 2 broad lobes and a scimitar-shaped oviduct, 

 the upper margin serrated (5 ? ). Elytra deflexed or semicylindric, 

 longer than the body, curved-elliptic, reticulated, with oblong or el- 

 liptical cells, the costa sometimes thickened and subserrated, the 

 posterior margin producing a broadish membrane, one lapping over 

 the other in repose : wings ovate-trigonate, with about 6 longitudi- 

 nal nervures, united to a transverse one running parallel to the hinder 

 margin, 3 of them furcated. Legs short, hinder long : thighs 

 simple : tibiae, anterior bristly or hairy internally (6) ; hinder 

 longish, slightly curved, spiny outside, ivith a coronet of spines at 

 the apex : tarsi short and triarticulate, 2 basal joints short and 3rd 

 the longest in the anterior, basal the longest in the hinder : claws 

 short stout and semilunate : pulvilli bilobed. Obs. the dissections 

 are from a male of I. effulgens. 



Maculipennis Curt. Guide, Gen. 1051'', 3. 



Mr. Lewis established this group under the name it now 

 bears in the Trans, of the Ent. Soc. The males are well 

 cliaracterized by their remarkable clubbed antennae, and both 

 sexes differ from all allied genera by the broad and long 

 membranous margins of the elytra, which lap over each other 

 when they are closed. One species is very remarkable for 

 the incrassated and somewhat serrated costa, which is peculiar 

 to the male ; the small seta at the apex of the club of the an- 

 tennae also varies considerably, being short and elongate-tri- 

 gonate in some, whilst in others it is a fine and longer bristle. 



