1856.] Entomological Papers, 545 



ultimo minitno semigloboso. Thorax maguus obovatus, basirotunda- 

 tus, 4 foveolatus. Elytra apice truncata, 2-sinuata. Pedes femoribus 

 2 posticis medio constrictis, tarsis art. 1-4 gradatim minoribus. 



Of the general appearance of the former, but of a light yellowish 

 colour, and well distinguished by the large thorax, truncated elytra, 

 and abnormal construction of the 2 posterior femora. Antennae 

 with joints 7-8 rather strongly obliquely truncated at the apex, 

 9-11 forming a club, subglobose, flat at the base, the last acuminated 

 and slightly cut away or even excavated on the inside at the apex. 

 Last joint of maxill. palpi semiglobose, these otherwise the same as 

 in the former. Thorax and elytra of S. alatus, the former however, 

 larger, rounded at the posterior margin and with 4 basal impressions, 

 the latter slightly truncated at the apex and with a slight sinuosity 

 in the truncature on either side of the suture. Scutellum very 

 small. Legs with the tibiae slightly bent at the base, the apex as 

 in the former ; tarsi with joints 1-4 gradually decreasing in size, 

 first pair contracted and furnished with brushes on the inside. The 

 2 posterior legs inserted rather distant from each other, the basal 

 part of abnormal construction : the trochanters are much elongated 

 and incrassated at the tip whilst the femora are at the place of the 

 juncture rather abruptly narrowed, bent and slightly compressed ; 

 as they are at the same time thinner than the adjoining apex of the 

 trochanter the constriction is very striking. 



32. Seydmcenus Ceylanicus. iV. 



& alati colore, sed major et magis depressus ; long. corp. f liu. 

 Caput magnum, robustum, thoracis latitudine. Antennae basi non 

 approximatae, art. 3-4 et 5-7 inter se subaequalibus, arcum forman- 

 tibus, 8-10 gradatim majoribus, subglobosis, depressis, apice oblique 

 truncatis, 11° magno, conico, 8-11 longius pilosis, clavam forman- 

 tibus. Palpi maxill. art. 4° minimo, semigloboso. Thorax ovatus, 

 foveis basalibus nullis. Elytra apice singulation rotundata. Pedes 

 validi tarsis art. 1-4 subaequalibus, 2 anterioribus art. 1° subtus 

 acumine sat forti producto. 



An anomalous species, especially with regard to the antennae 

 which are much less approximated at the base than those of the 

 rest of the species belonging to this group, and with regard to the 



4 B 



