1856.] Entomological Papers. 547 



This species stands in the middle between S. alatus and psela- 

 phoides. To the former it is allied by its general appearance rather 

 than by anything else, differing from it very much in the structure 

 of the antennae and the mesosternal carina. To the latter, on the 

 contrary, it is allied by similarity in the structure of the said carina, 

 differing, however, from it in general appearance. The colour is that 

 of S. alatus but a shade or two darker, the insect being at the same 

 time larger and altogether more robust. The eyes are small. An- 

 tennal club 8 -jointed, the joints forming it gradually increasing in 

 size, obovate, flat at the base, the last acuminated. Scutellum obso- 

 lete. Elytra with 2 slight basal impressions, the traces of a humeral 

 costa, separately rounded off at the apex. Legs elongated as 

 usual ; 2 posterior coxae distant, tibiae straight, subcylindric but not 

 narrowed at the apex, the 4 anterior ones hairy ; tarsi with joints 

 1-4 almost imperceptibly decreasing in size or perhaps 2-3 equal, the 

 anterior ones slightly contracted, these and the intermediate ones 

 hairy on the inside. Mesosternal carina middling, flat on the back, 

 with a shallow, but very distinct, longitudinal groove or excavation ? 

 anterior part projecting, acuminated. 



34. ScydmcBnus pselaphoides. N, 



S. subpyriformi-ovatus, subconvexus, magis minusve brunneus, 

 pedibus antennisque subtestaceis, femoribus apice nigrescentibus, 

 tarsis palpisque testaceis ; flavo-pubescens ; long. corp. 1-1^ lin. 



Antennae art. 1° mediocri, apice biacuminato, 2-4 sensim minori- 

 bus, 5 et 2, 6 et 3, 7 et 8, 9 et 10 inter se subpequalibus, 9-11 cla- 

 vam formantibus, 6-11 basi rotunde truncatis, 6-8 apice oblique 

 truncatis, 7-8 compressis, 9-11 obovatis. Mandibulae dente bifido mu- 

 nitae, basi dilatatae et ciliatae. Palpi maxill. art. 3° inverte conico, 4° 

 minimo apice truncato. Thorax obovatus, latitudine quarta parte lon- 

 gior, basi 4 foveolatus. Elytra apice singulatim rotundata. Pedes 

 validi, tarsis art. 1-4 gradatim minoribus, anterioribus dilatatis, his 

 cum intermediis subtus fortius pilosis. Mesosternum praecedentis. 



An anomalous species with regard to its general appearance, which 

 differs considerably from that of the rest of the group, and makes 

 it, as I have remarked above, the connecting link between this and 



4 b 2 



