﻿620. 

 ACUCEPHALUS TRICINCTUS. 



Order Homoptera. Fam. Tettigonidae. 



Type of the Genus, Aphrodes bicincta Curt. 



AcucEPHALus Germ. — Aphrodes Curt. — Jassus Germ. — Cercopisawrf 

 Cicada Fab. 



Antenna very slender, inserted in cavities under the forehead 

 and between the eyes (4), 8- or 9-jointed, 2 basal joints stout, 

 1st chalice-shaped, 2nd oval, the remainder slender, forming a 

 seta, 3rd joint narrowed at the base, longer than any of the 

 following which are oblong or ovate, the terminal one forming 

 a long naked bristle (4 a). 



Labrum very short, attached under the clypeus, lanceolate (3). 

 Mandibles and Maxillce slender filaments. 



Labium not longer than the clypeus, beneath which it is inserted 

 (2), slender, slightly pubescent, triarticulate, basal joint short, 

 2nd the stoutest, oblong, 3rd slenderer, but scarcely longer 

 (2 *). 

 Head depressed or hollowed above, suitrigonate- lunate, wedge-shaped in 

 profile; face inclined, suborbicular , the upper and loiver points slightly 

 angulated, clypeus oblong, emarginate, the cheeks inflated {I front 

 view of the face) : eyes small, ovate, lateral, touching the thorax 

 and scarcely projecting beyond its sides : ocelli 2, very minute, re- 

 mote and placed upon the margin of the forehead. Thorax transverse, 

 ovate-lunate : scutel trigonate, cuspidate. Abdomen trigonate : ovi- 

 positor rather short, stout, a little curved and obtuse. Superior 

 wings convex, deflexed, not longer than the body, with several longi- 

 tudinal nervures, and a few cells at the apex : inferior ample, with 

 3 cells at the apex and 2 furcate nervures towards the anal angle (9 *). 

 Thighs, posterior spined at the apex. Tibiae, anterior spi?ied inter- 

 nally, posterior very long, compressed and curved, ivith series of long 

 spines on the outside and internally towards the apex : tarsi rather 

 short and triarticulate, basal joint the longest in the hinder pair : 

 claws «w(/pulvilli short (6 f hind leg). 



Tricinctus Curt. — Guide, Gen. 1059. 



Piceous ; some dots in front of the head and a line at the base 

 ochreous, face and breast of the same colour, with a piceous 

 spot on the parapleurse : thorax with a yellow band at the base ; 

 elytra with 2 yellow bands, one before, the other beyond the 

 middle, the former broken, forming a large spot on the costa 

 and a lunate one on the suture, the latter sinuated, with a spot 

 nearer the apex ; anterior legs spotted with ochre, base of the 

 other thighs and centre of intermediate tibiae ochreous. 

 In the Cabinets of Mr. Dale and the Author. 



This group, which formed the 2nd division of my genus 

 Aphrodes, appears to be synonymous with Germar's Acuce- 

 phalus. It is at once distinguished from Tettigonia, which it 

 very much resembles, by the long sphied hinder tibiae, from 



