﻿Of all the strange forms we meet with in the Insect world, 

 there are none more singular and grotesque than those which 

 are to be found in the groups allied to the insect before us. 

 Ledra even is remarkable for its shovel-head and two ear- 

 shaped appendages on its back ; characters which readily di- 

 stinguish it from Cercopis (pi. -IGl), a genus which Latreille 

 placed next to it ; and from the Membraces, of which Ceutrotus 

 forms a part, it is separated by its simjily truncated thorax, 

 which is elongated into a tail in the Membraces (vide pi. '313.). 



Our species is the only one of the genus, 1 believe, and it is 

 by no means a common insect : Mr. Samouelle states that they 

 " inhabit the oak and various trees in woods." I have gene- 

 rally found them upon oaks in June and July, but only in Ua- 

 rent Wood. Mr. Dale has met with it I believe in Hamp- 

 shire, and I have a pupa that he gave me which considerably 

 resembles the perfect insect in colour and the form of the head, 

 but the auriculate lobes are not developed, they are merely in- 

 dicated by 2 raised carina^; the elytra are short and applied 

 close to the sides ; and the abdomen is somewhat depressed, 

 with the margin round the apex dilated, crenated, thin, and 

 horny. 



Whether these insects live in their early stages in the frothy 

 secretions that envelop those of kindred genera 1 am igno- 

 rant, being unacquainted with their ccconomy. 



The perfect insect is represented of its natural size at fig.N 

 with its wings closed, and in Kirby and Spence's Introduction 

 to Entomology there is a coloured figure of it in a similar po- 

 sition. 



The Plant is Ccntajirca Calcitrapa, Common Star Thistle. 



