470 Mr. D. Sharp on the Elaterklaj of New Zealand. 



sexes of one and the same species ; but I am not quite sure 

 about it. 



Akaroa, 19th Dec. 1874; Westhmd ; west coast {Wake- 

 field). 



Groups. — These three species (Nos. 25, 26, and 27), again, 

 show a considerable relationship with the species to which I 

 have given the generic name Lomemus^ but are larger in size, 

 and appear to connect the Betarmon allies with the " Elat^- 

 rites " of Candeze : the prosternal sutures are obscurely or not 

 duplicate and are scarcely open in front ; the mesosternal 

 cavity is broader than in Lomennis (Nos. 17-24) ; and though 

 the posterior part of the cavity is acuminate and ill-defined, 

 and does not reach nearly to the suture, yet its plane of direc- 

 tion is less horizontal. The femoral portion of the hind coxal 

 plate is more developed, so that there is a quite gradual passage 

 from it to the longer trochanteral portion. 



28. Monocrepidius exsid, n. sp. 



M. fuscus, tomentosus, opacus ; antennis pedibusque flavis, his sat 

 elongatis, filiformibus, articulo tertio quara secuudus paulo longi- 

 ore, his conjunctim quarto sequalibus ; prothorace dense punctato, 

 angulis posterioribus elongatis, acutis, sat divergentibus ; elytris 

 fortiter striatis, densius pubescentibus. Long. 11-13 m. m. 



This species is allied to the Australian Monocrepidius rec- 

 tangulus, but is smaller and more delicately sculptured. As it 

 has only been found at the port of Wellington, it is possible it 

 may have been introduced into New Zealand ; I do not 

 think, however, that it is a described species. 



WelHngton, Feb. 1875 {Mr. Wakefield). 



Group 9. — The following structural characters will enable, 

 the New-Zealand entomologists to readily identify this form : — 

 Antennas slender, filiform. Forehead wide in front and only 

 slightly curved, without raised margin, but overhanging the 

 very short clypeus ; antennal spaces wanting ; the cavities 

 widely distant. Prosternal process long, slender, and straight. 

 Mesosternal cavity elongate and narrow, quite parallel-sided, 

 extending back to quite the intercoxal suture, its side margins 

 very thin and scarcely raised. Femoral portion of hind coxal 

 plate well developed, but much shorter than the rather long 

 trochanteral portion. Tarsi with 3rd joint well developed ; 

 4th join^ underneath large, membranous, above grooved almost 

 to its base for the insertion of the 5th joint. 



