200 . [February, 



NOTES ON CERTAIN SPECIES BELONGING TO THE GENUS 

 CEUTEORRSYNCRUS, GERMAR. 



BY THE EEV. CANON FOWLEK, M.A., F.L.S. 



In the volume of the " Faune des Coleopteres du bassin de la 

 Seine," Rhyncliophora, lately published by M. Bedel, he separates the 

 two species, G cardui, Herbst, and C.fuliginosus, Marsh., which have 

 usually been regarded as synonymous, as follows : — 



Head with a little stria between the eyes ; thorax with a lateral raised ridge, 

 rather strongly developed, and continued to the external margin, if viewed from 

 above C. cardui, Herbst. 



Head without an interocular stria ; thorax with a small tubercle, which, if 

 viewed from above, appears to be isolated, and not continued to external margin... 



C. fuliginosus, Marsh. 



I shall be glad to know if any Coleopterist has these two species 

 or varieties strongly marked in his collection ; as far as I have* been 

 able to judge, intermediate forms occur, and the species certainly do 

 not seem to be distinct ; the insect regarded by British Entomologists 

 as Cceliodes fuliginosus is very common in Lincoln, on pavements, from 

 early spring to autumn. m 



One of the great difficulties of the genus Ceutliorrhynclius is the 

 G. marginatus group, which contains 0. marginatus, Payk., G punctiger, 

 Gyll., G. rotundatus, Bris., and G distinctus, Bris. ; G. distinctus belongs 

 to the section in which the funiculus of the antennse is composed of 

 six joints (s. g., Geutliorrliynchidius, Duval), but otherwise it very 

 closely resembles G. marginatus and G. punctiger ; these two latter 

 species are distinguished as follows by M. Bedel : — 



Thorax rather convex, covered with small and extremely close circular punctures ; 

 elytra convex, not at all asperate at sides ; apex of pygidium with a deep incision 

 in both sexes C. punctiger, Gyll. 



Thorax sub-depressed, shagreened ; elytra sensibly depressed in front, finely 

 asperate towards the sides ; pygidium foveolate behind in the male, entire in the 

 female C. marginatus, Payk. 



C. punctiger occurs on Taraxacum officinale, and the larva of G. 

 marginatus has been found by Dr. Giraud on Hypbchesris maculata ; 

 the habits of C. distinctus have not been observed. 



I have never seen C. rotundatus, which is described as near 

 punctiger, but of shorter form and greater convexity, with relatively 

 wider striae, and its pygidium not deeply excised; it seems, therefore, 

 in some ways to form a connecting link between the two species ; it 

 has only been recorded, as far as I know, as taken in this country by 



