BRITISH COLEOPTERA. 3 



Stirps 4. Mai.acodf.rma Latreille. 

 Ant. mostly elongated, more or less serrated, or pectinated ; often with 

 3 terminal joints more robust (sometimes considerably, and suddenly 

 elongated); or clavate, the club composed of compactly united joints: 

 head nutant, in rare instances slightly produced in front ; in general deeply 

 inserted in the thorax, which is more or less semicircular or cylindric : 

 body soft and depressed, or of a firm consistence and more or less cylindric 

 and elongate : legs rather long ; tarsi rarely 4-jointed. 



§ 4. PSEUDOTETRAMERA Westwood. 



Palpi 4, 2 labial and 2 maxillary, sometimes minute: head produced in 

 front into a rostrum, with the mouth at its apex, and the ant. (9 to 

 12-jointed) more or less clavate; or head not rostrated, ant. 11 or 

 12-jointed, filiform or setaceous, occasionally serrated: labium more or 

 less heart-shaped, occasionally entire : tarsi 5-jointed, the 4th joint ex- 

 ceedingly minute, and concealed by the 3rd. 



Stirps 1. Rhinchophora Latreille. 

 Head produced in front into a rostrum, with the mouth at the apex : palpi 

 minute : labrum wanting, or obsolete : mand. generally small, stout : ant. 

 inserted on the rostrum, mostly clavate, the basal joint usually elongate ; 

 funiculus (the joint between the basal one and the club) slender : body 

 short, firm, hard: abdomen mostly robust. 



Stirps 2. Longicornes Latreille. 

 Head not produced in front into a rostrum: palpi conspicuous: labrum 

 more or less conspicuous, rarely obsolete : mand. generally large, robust : 

 ant. filiform, or setaceous, more or less elongate, sometimes very long and 

 slender : body more or less elongated, convex, or slightly depressed : 

 eyes generally lunate. 



Stirps 3. Eupoda Latreille. 

 Head not produced in front into a rostrum ; deeply inserted into the thorax, 

 which is mostly cylindric, narrower than the elytra ; the latter elongate, 

 sometimes depressed : body generally elongate ; palpi and labrum con- 

 spicuous : labium generally entire : mand. short, entire, or bifid : ant. 

 not longer than the head and thorax, somewhat filiform, sometimes a little 

 thickened at the tip : eyes entire, rarely emarginate : hinder femora more 

 or less clavate and elongate, sometimes toothed. 



Stirps 4. Cyclic a Latreille. 

 Head not produced in front into a rostrum, frequently concealed beneath 

 the front of the thorax, which last is often as broad at the base as the 

 elytra ; the latter occasionally shorter than the body, which is oval, or ovoid 

 more or less globular, rarely elongate : ant. filiform, or slightly thickening 

 to the apex : palpi incrassated in the middle : labrum distinct : labium 

 thick, square, or oval, entire or faintly notched : eyes simple : legs mo- 

 derate : femora subequal, or the hinder pair very much thickened. 



§ 5. PSEUDOTRTMERA Westwood. 



Palpi 4, 2 labial and 2 maxillary : body hemispheric, or oval : ant. short, 

 gradually thickening to the apex, or abruptly clavate : palpi short, 

 filiform, or with the terminal joint enlarged: head not produced anteriorly, 



' deeply inserted into the thorax, which is short and transverse, or some- 



b 2 



