122 



KHYNCHOPIIOKA. 



\_Rhyncliitcs. 



b. Colour blue 1{. CCEKULBUS, tie G. 



(conicus, 111.) 



B. Elytra with a scutellary stria, 

 a. Ninth stria of elytra entire and prolonged 



as far as the tenth stria, 

 a*. Elytra with a small additional row of 

 punctures near shoulder between the 

 ninth and tenth rows ; insect blue ; 

 rostum comparatively short .... 



b*. Elytra without an additional row of 



punctures near shoulder ; elytra bronze, 



rarely bluish-bronze ; rostrum long . . 



b. Ninth stria of the elytra abridged and 



united to the tenth considerably before 

 appx. 



a*. Head not sensibly narrowed behind; 

 thorax more finely punctured, without 

 central furrow ; temples not prominent 

 at sides; interstices of elytra with 

 single rows of punctures 



B. MINPTUS, Herbst. 

 (ffermanicus, auct.) 



R. .&NKOVIKEXS, Marsh. 



R. INTERPUNCTATU8, Stej.h. 



(alliarice, Brit. Cat.) 



b*. Head sensibly narrowed behind ; 

 thorax more coarsely punctured, with 

 central furrow ; temples prominent at 

 sides ; interstices of elytra, as a rule 

 (but not always), without distinct punc- 

 tuation R. PAUXILLU8, Germ. 



II. Body behind thorax more elongate, at least twice 



as long as broad. 



i. Length l^-SJ mm. ; head short ; pubescence 

 not, or scarcely, visible if viewed sideways. 



1. Anterior tibiae not produced into a tooth in- 

 ternally at apex ; rostrum shorter (if compared 



in the same sex); thorax subparallel . . . R. NANPS, Payk. 



2. Anterior tibiae produced into a tooth internally 

 at apex ; rostrum longer (if compared in the 



same sex) ; thorax widened behind middle . . R. UNCINATUS, Thorns. 



(tomentosus, Gyll., sec. Bedel.) 

 ii. Length 4-6 mm. ; head rather long ; pubescence 

 plainly visible, if viewed sideways, much raised 

 and villose. 



1. Striae of elytra entire ; size smaller ; colour 



usually bright blue , R. SERICETTS, Herbst. 



(ophthalmicus, Steph.) 



2. Striae of elytra effaced or obsolete behind ; 



size larger ; colour usually greenish-blue . . R. PUBSSCENS, F. 



R. auratus, Scop. A large and conspicuous species, greenish or 

 golden coppery, with the anterior parts and base and sides of elytra 

 more or less crimson, clothed with long whitish pubescence, antennae 

 and tarsi black ; rostrum moderately long, forehead strongly punc- 

 tured ; thorax as long as broad, closely and strongly punctured, with 

 an indistinct central furrow ; elytra with not very regular rows of 

 punctures, interstices very closely and rugosely punctured ; legs 

 moderately long. L. 8-9 mm. 





