HETEROMERA. 



bro\vn or reddish-brown, very dull, with the antennae and legs ferru- 

 ginous ; head much narrower than thorax very closely sculptured, 

 antennae short and stout, much thickened at apex ; thorax transverse, 

 with the sides rounded and finely notched, very coarsely and granulosely 

 punctured, anterior angles sharply projecting ; elytra subparallel, 

 gibbose behind, with the elytra sulcate, the sulci being punctured in 

 rows, and with the interstices narrowly raised and furnished with rows 

 of setae ; legs moderately long, not thickened. L. 2| 3 mm. 



Male with the forehead elevated into a tubercle near eyes, and the 

 clypeus projecting in a small tooth on each side at apex. 



In boleti on. oak, &c. ; very local, but occasionally found in numbers where it 

 occurs ; Richmond Park, Mickleham, Box Hill, Cobliaru Park, Merton, Chatham, 

 West Wickham, Faruha-m ; Hampshire; Bristol; Norfolk; Suerwood Forest. 



DIAPERINA. 



In this tribe the body is oval or rounded and winged ; the head is 

 sunk in the thorax as far as the eyes ; the clypeus is entire and mem- 

 branous at apex ; the antennae are more or less thickened ; the thorax 

 is narrowed in front, and is sharply margined ; the tibiae are straight and 

 not dilated, and are furnished with small spurs, and the tarsi are 

 pubescent beneath ; there are seven European genera, of which four are 

 represented in Britain ; two, however, are extremely rare ; in form and 

 general appearance several of the members of the tribe closely resemble 

 certain Chrysomelidse. 



I. Posterior tarsi with the first joint comparatively short DIAPEBIS, Geoff". 

 II. Posterior tarsi with the first joint elongate. 

 i. Upper surface glabrous. 



1. Posterior coxse not widely distant ; thorax slightly 



emarginate at apex PLATTDEMA, Lap. 



2. Posterior coxae widely distant ; thorax strongly 



etnargiuate at apex SCAPHIDF.MA, Redt. 



ii. Upper surface finely pubescent ; posterior coxae 

 slightly distant ALPHITOPHAGUS, Steph. 



DIAPERIS, Geoffroy. 



This genus contains four or five species, of which two, or three, if 

 D. liipustnlata is considered a separate species, are found in Europe, and 

 the other two have been described from North America and Cayenne 

 respectively; they are round oval and convex insects with the club of 

 the antennae elongate, 8-jointed, all the joints except the last being 

 transverse ; the tarsi are short with the first joint only a little longer than 

 second, and the prosternum is very short. 



The larva and pupa of D. boleti are described and figured by Sehiodte (I.e. pp. 547, 

 535, pi. viii. fig. 14, 23) ; the larva is white with the head and legs ferruginous 

 and the forehead fuscous, and is entirely membranous except the head and legs ; it 

 very much resembles the larva of Bolitopliagus, but is rather broader (being only six 



