544 Entomological Papers. [No. 6. 



The head from the eyes to the neck is of a transverse sub- 

 quadratic form merging into the oval by the angles being rounded 

 off; the anterior part is narrowed. This is the typical sculpture 

 of the skull in all the 5 species of this group. The eyes in the 

 present species are middling. The antennae are rather approx- 

 imated at the base and inserted in the centre of the front under a 

 ridge which runs across it from eye to eye. The first joint is 

 biacuminated at the apex, the 5th is longer than the adjoining ones, 

 joints 7-9 in the individuals with the 2-jointed and 7-8 in those 

 with the 3-jointed club are of a peculiar construction being narrowed 

 at the apex and fitting into each other like the tubes of a spy-glass. The 

 club joints are ovate, flat at the base, the last is large and obtusely 

 acuminated. I consider the principal distinguishing character to 

 lie in the remarkable structure of joints 7-9 of the antennae. The 

 maxil. palpi have joint 2 rather strongly incrassated at the apex, 

 joint 3 obovate, narrowed at the base, joint 4 very minute, trun- 

 cated at the apex. The mandibles are furnished with a bifid tooth 

 and are strongly and abruptly dilated at the base. The thorax 

 is of an obovate or obcardato-ovate form being rather strongly 

 rounded off before the middle and gradually narrowed below it ; the 

 usual basal impressions are wanting. The posterior margin has 2 

 slight sinuosities, the posterior angles are rounded off or obliquely 

 truncated. Scutellum obsolete. Elytra furnished with a very short 

 elevated ridge at the shoulder. Legs elongated ; coxae large, the 2 

 posterior ones rather distant from each other ; 2 posterior tro- 

 chanters much elongated, incrassated at the tip ; apex of tibiae 

 subcylindric, but not narrowed, and hairy, especially in the 2nd 

 pair ; joints 2-3 of the tarsi of equal size, the first longer, the 4th 

 a little shorter, 2 anterior tarsi slightly contracted, 2nd and 3rd 

 pair more and more elongated. Penultimate segment of abdomen 

 with a strong longitudinal groove on the back. 



31. Scydmcenus femoralis. N. 



S. statura et magnitudine praecedentis ; testaceus. Antennae art. 

 3-4 subaequalibus, 5 praecedente longiore, 6-8 gradatim minoribus, 

 subglobosis, 7-8 apice fortius oblique truncatis, 9-11 gradatim 

 majoribus, subglobosis, clavam formantibus. Palpi maxill. art. 



