26S UHYNCHOPHORA. [Gnjpidius. 



large ; the elytra are much broader than thorax with the shoulders well 

 marked, and the second abdominal segment is a little longer than the 

 third and fourth taken together ; the tarsi are moderately broad, with 

 the claws rather large ; the species are found in and on aquatic plants. 



Cr. equiseti, F. (Erirrhinus equiseti, Thorns.). Pitch-black ; breast, 

 sides of thorax and elytra, and apex of latter closely covered with white 

 and brownish-grey scales, each elytron with a white spot in the middle 

 and at shoulders, and with the scales at sides extended in a dentate 

 patch towards middle ; these markings, however, are only distinct in 

 fresh specimens ; antennae pitchy ; thorax about as long as broad with 

 sides contracted before apex, closely and finely sculptured ; elytra much 

 broader at base than thorax, dilated at shoulders (which are well marked) 

 and behind middle and very gently sinuate between the dilatations, 

 narrowed from posterior quarter to apex, with fine punctured strise, and 

 the third, fifth, and seventh interstices more or less elevated; legs dark, 

 more or less ferruginous, femora ringed with grey ; mesosternura narrow, 

 but not linear between the intermediate coxae. L. 4|-6| mm. 



On Equisetum arvense ; also, according to Bedel, on E. palustre ; rarely common, 

 but apparently widely and generally distributed throughout England and Wales; 

 London district, not common, Battersea Fields, Claygate, Coombe Wood, Ripley, 

 Chatham; Hythe ; Hastings; Portsmouth district ; Isle of Wight, Luccombe, &c. ; 

 Glanvilles Wootton ; Bath ; Bristol ; Hertford ; Bungay, Suffolk ; Avlsham and 

 Rudham, Norfolk; Needwood Forest; Eggington. Burtou-on-Trent ; Gumley, 

 Market Harborough ; Ripon ; York; Scarborough; Wallasey sandhills (common in 

 spring); Chat Moss ; Manchester district; Northumberland and Durham district; 

 Scotland, local, Solway and Forth districts; Ireland, Bray, Belfast, Armagh, &c. 



ERIRRHINUS, Schonherr (Notaris, Germ.). 



The genus Erirrhinus, if regarded as including Notaris and Tliryo- 

 genes, contains about forty -five or fifty species which are chiefly coiifined 

 to the northern parts of the Northern Hemisphere ; two or three species 

 have also been described from the Australian region ; in its restricted 

 sense, as here used, it comprises about a dozen moderate-sized insects, 

 of a black or pitch-brown colour, with or without pubescence ; they 

 are always found in marshy places near water or on the banks of 

 streams; but little appears to be known regarding their life history ; 

 the sexual differences are unimportant. 



1, Thorax thickly punctured, with a more or less distinct 

 smooth central line; upper surface dull or only slightly 

 shining, with more or less distinct pubescence or long hair- 

 like scales. 



i. Elytra rather thickly and distinctly clothed with scale- 

 like pubescence, or slender scales, with a small light spot 

 behind middle of each, sometimes more or less obsolete ; 



size larger. 

 1. Elytra shorter and more oval; light spots on elytra 



