Jleluphurus.'] 



IIYDUorillLlDiE. 



235 



i. IJase of elytra with a series of punctures between the 



1st and 2iicl striiu H. AQUATICUS, L. 



ii. Base of elytra without series of punctures between 



the 1st ami 2ud stria?. 



1. Frontal furrows in the form of a V or Y without 

 lateral appendages from the extremities of the 



arms ; interstices of thorax more or less granulate. 



A. Last joint of maxillary palpi elongate ; penulti- 



mate' twice as long as broad. 



a. Elytra usually dark brown or bronze with a 

 metallic tinge ; darker markings behind middle 



of elytra, as a rule, scarcely visible, 

 a*. Thorax narrower than elytra; iiuier thora- 

 cic furrows distinctly angular in middle, 

 af . Elytra with distinct testaceous patches 

 bf. Elytra without testaceous patches . . 



b*. Thorax as broad as elytra ; inner thoracic 

 furrows shallow and sinuous 



b. Elytra light biown, occasionally testaceous, 



with darker elytral markings plainly visible, 

 a*. Length 3i|— It mm.; alternate interstices 



of elytra slightly raised 



b*. Length 2-3^ mm.; alternate interstices 

 of elytra never raised. 



af. Disc of thorax smooth or only slightly 

 granulate ; interstices of elytra rather 

 broad and flat 



bf. Disc of thorax strongly granulate; in- 

 terstices of elytra narrower ..... 



B. Last joint of maxillary palpi plainly thickened 



at base, penultimate hardly longer than broad. 



a. Thorax with sides almost straight towards 

 base; last joint of maxillary palpi longer, pear- 

 shaped ; punctuation of stria) of elytra mo- 

 derate 



b. Thorax with sides plainly sinuate before base ; 

 last joint of maxillary palpi very short, ovoid; 

 punctuation of striie of elytra very coarse 

 and strong 



2. Frontal furrows in the form of a X or |VI the 

 anterior furrow being furnished with longer or 

 shorter longitudinal appendages; interstices of 



thorax shining, almost smooth H. NANUS, Slurm, 



II. DOKSALIS, Mul.t. 



H. J2NE1PENNIS, Thorns, 

 {typeform). 



II. LATICOLLIS, Thorns. 



n. MCLSANTI, Bi/e. 



II. AFFiNis, Harsh. 



H. BEEYICOLLIS, Thoms. 



H. BKETirALPIS, Bedel. 



H. AliVERNICUS, Mills. 



K. tuberculatus, (lyll. Oblong oval, Mack, shiny, elytra with a 

 slight iuneous reiiectioii ; thorax strongly granulate, slightly irith'scfnt, 

 with not very deep furrows ; elytra with strongly punctured strirp, tho 

 alternate interstices, especially behind, raised in polished oblong 

 tul)ercles ; legs £eneous-black : this and the two succeeding species 

 belong to the sub-genus Eiiij>h'iirit.<, Hope, which is distinguished by tho 

 wide epipleur?p of the thorax and elytra ; in the other species of Ilelo- 

 j)/i(irn.-^ they are narrow. 



Very rare; taken in tlie iNIanclu'ster district by Mr. Chappell, and in Yorkshire 

 by Mr. Lawson and Mr. Wilkinson. 



