1S74.] 22*3 



at tlio apex ; sutin-c between the Ist and 2nd segments semicircular ; 2nd segment 

 the longest. Tercbra slightly exscrted, rufous. Legs short ; the fore tibia and tarsus 

 equal ; in the other two pairs the tarsus is longer than the tibia. Wings dusky 

 h} aline ; the three longitudinal neiTures fuscous as far as the recurrent nervui'cs, 

 which are fuscous also ; beyond them is a large hyaline space, and in the apical half 

 of the wing a large indeterminate fuscous cloud, covering the ramus stigmaUcus, 

 ■which is darker fuscous. The rest of the nervures are colourless. The ramus mar- 

 ffinab's is somewhat thickened into an elongate stigma, from which proceeds a long 

 curved ramus stigmaticus (radius), not reaching the margin of the wing. The white 

 spurious veins may be faintly traced across the dark apical spot. 



Grange, Lastingham, Pickering : 

 December, 1873. 



DESCRIPTION OF A NEW AFRICAN SPECIES OF THE GENUS 

 ISCHIODONTUS, CAlSJy. {COLEOPTEEA: FAM. ELATERID^). 



BY C. EITSEMA. 

 ISCIIIODOKTUS Ca^dezei, sp. n. 



Briumeus, nifidus, sat dense griseo fuli-o pilosulus ; antennis 

 articulo tertio quarto suhcequali ; prothorace latitudine liaud Jongiore,a 

 hasi angustato, paruin convexo, punctata, imnctis lateralihus iimhilicatis ; 

 angidis posticis retrorsum productis, acutis, carinatis ; eJi/tris profunde 

 jJunctato-striatis ; interstitus convexis. Long. 15 mill., larg. 3i mill. 



Elongate, shining brown, somewhat densely clothed with short, slightly ful- 

 vescsnt, grey hairs. Antennae short, not reaching the posterior angles of the 

 prothorax, the joints pubescent, having each some additional longer hairs ; the third 

 joint of the fonn, and very nearly of the size, of the fourth. Prothorax as long as broad, 

 narrowed from the base, with the sides slightly curved,' but little convex except at the 

 apex, rather densely punctured, the pimctures on the sides umbilieate, the posterior 

 angles directed backwards, short, acute, carinate. Elytra as broad as the prothorax, 

 and at least two and a-half times longer, parallel in front, narrowed in a curvilinear 

 manner at the apex, where they are slightly acuminate ; convex, deeply punctate- 

 striate. Body beneath and legs of the same colour as above. 



An example of tliia species (whicli I dedicate to the author of 

 the excellent ' Monographic des Elat6rides,' Dr. E. Candeze, of Liege) 

 was taken at Bananua, Congo, in South Guinea, by the late Gr. van 

 "Woerden, and is in the collection of Mr. F. J. M. Heylaerts (fils) at 

 Breda. 



The species is most nearly allied to /. ovalis, Cand., from which, 

 however, it differs in several important points. It has the posterior 

 coxae but little angulated, and in this respect constitutes a transitional 

 form between Ischiodontus and Psephus, Cand. 

 Leyden : 'ird February, 187*1. 



