226 MANDIBULATA. COLEOPTERA. 



Genus CCCLXIV. — Spondylis, Fahricius. 



Antennce short, moniliforra, compressed, the joints truncate at the apex, the 

 terminal one conic, slightly acuminated. Palpi with the terminal joint some- 

 what ohconic : maxillcB very short, with two small lobes, the outer one sub- 

 coriaceous, the inner smaller and membranaceous : body very convex : thorax 

 suborbiculate, immarginate, the sides rounded, unarmed : legs short, stout : 

 tiblOE crenulated without: tarsi with the penultimate joint distinctly bifid. 



From Prionus the convex, unarmed, thorax of this genus, ex- 

 clusively of its short moniliform antennae, convex smooth elytra, 

 bilobed maxillae, externally crenulated tibise, will at once enable the 

 student to distinguish it. 



f Sp. 1. buprestoides. Niger, immaculatus, vage punctatus, eJytro singula lineis 



duabus elevatis, apicem nan attingentibus. (Long. corp. 7 lin.) 

 Spo. buprestoides. Fabricius, S. Eleut. ii. p. 376. — Panzer. F. G. xliv. /I 19. 



Black, immaculate, thickly and irregularly punctured: each elytron with two 

 elevated lines, which do not reach to the apex. 



I have seen but one indigenous specimen of this which was 

 " taken in Windsor-forest, August, 1831." — Rev. F. W. Hope. 



Genus CCCLXV. — Prionus, Geoffrey. 



Antennas longer than the head and thorax, setaceous, distinctly serrated in the 

 males, the articulations triangular conic, the third joint longer than the rest, 

 and the two apical ones united in the females. Palpi with the terminal joint 

 obconic, truncate : maxillce short, cylindric, pilose, with a minute lobe : body 

 slightly convex : thorax with the lateral margins acutely spinose : legs elon- 

 gate : feinora and tibice compressed, the latter with their outer edge unarmed, 

 with two spines at the apex : tarsi with the penultimate joint deeply bilobed. 



The genus Prionus embraces one of the largest of the indigenous 

 coleopterous insects, but in comparison to some of its gigantic 

 exotic brethren its magnitude is not remarkable, some of the South 

 American species being at least six inches in length: — the only 

 British species may be at once recognized by its serrated antennae, 

 and by the sides of the thorax bearing each three elongate, acute 

 spines, exclusively of other characters. 



Sp. 1. coriarius. Nigro-piceus, thorace utrinque acute trispinoso, elytris rugoso- 

 punctatis, obsolete elevato-lineatis. (Long. corp. 10 lin. — 1 unc. 8 lin.) 



Ce. coriariuB. Linne .—Don. xiv, pi. 491. — Pr. coriarius. Steph. Catal. 196. No. 

 2016. 



