Gymnetrina.\ 



RMYXCHOPIIORA. 



305 



Thomson includes Acalyptus in the tribe, but it is evidently distinct by 

 reason of its 7 -jointed funiculus ; the species are small inconspicuous 

 insects, of oval, oblong-oval, or cylindrical form, and are found on 

 various low plants ; the larvae live in the stems or flower heads and in 

 some cases form galls. 



I. Anterior coxae distant ; tarsal claws free MIAKUS, Steph. 



II. Anterior coxae contiguous ; tarsal claws connate. 



i. Form ovate or oblong-ovate ; posterior coxae broadly 



distant GYMNETKOX, SchoJt. 



ii. Form cylindrical; posterior coxae less broadly distant MECIXOS, Germ. 



MIARUS, Stephens. 



The species of this genus are rather broad black insects, with grey 

 pubescence ; they closely resemble the larger and broader species of 

 Gymnetron (belonging to Stephens' genus Shlnusa), but differ in having 

 the anterior coxae distant, the tarsal claws free, and the prosternum 

 excavate before the- anterior coxas and excised at apex; the rostrum is 

 received in a pectoral groove ; the larvae live in the capsules of Campanu- 

 laceae or of Linaria, and usually form a more or less distinct gall : in the 

 males the rostrum is shorter and duller than in the females ; about a 

 dozen species have been described as belonging to this genus, of which 

 eight are found in Europe and the remainder occur in South Africa and 

 Persia ; of these four are usually regarded as British, but one of these, 

 M. micros, is exceedingly rare, and only two indigenous examples have 

 hitherto been recorded. 



I. Striae of elytra distinct ; average size larger. 



i. Form short and broad, rotundate-oval ; elytra with at 

 least two rows of haiiM on each or on most of the 

 interstices. 



1. Posterior femora not toothed; pubescence of elytra 

 very short and close; male with the last ventral 

 segment of the abdomen excavate behind and termi- 

 nated by two teeth M. CAMFANTTL-E, L. 



2. Posterior femora angled and toothed on their in- 

 ferior margin ; pubescence of elytra coarse and some- 

 what raised ; male with the last ventral segment of 



the abdomen simple M. GEAMINIS, Gyll. 



ii. Form somewhat elongate, oblong-oval ; elytra with 

 one row of hairs on all the interstices beginning from 



the third M. PLANT ARUM, Germ. 



II. Striae of elytra indistinct; average size smaller; pos- 

 terior femora not toothed (Af. MICROS, Germ.) 



ZIX. campanulae, L. Ovate, short and broad, slightly convex, black, 

 clothed with short depressed whitish-grey hairs, which, on the elytra, 

 are arranged in more or less distinct rows ; rostrum elongate ; antennae 

 black, pitchy at base, with the second joint of the funiculus twice as 

 long as the third joint ; head and thorax very closely punctured, the 

 latter transverse with the sides rounded and strongly narrowed in front ; ' 

 elytra at base a little broader than base of thorax with regular punctured 



VOL. v. x 



