42 Mr. P. P. Pascoe on some new or Uttle-kaoivn 



Byrsax [Colydiidse]. 

 Head small, vertical, hidden above by the prothorax. Eyes large, 

 rounded, partially divided by the cheek. Antenuaj retractile, short, 

 gradually increasing upwards; the first joint rather slender, the second 

 shortest, the third and fourth longest and equal, the fifth triangular, 

 the sixth to the tenth transverse, the eleventh shortly ovoid. Labrum 

 and epistome very small. Palpi short, linear, the teiminal joint ovate. 

 [Mentmn transverse ; labium oblong, entire, as seen in sittt.'\ Prothorax 

 very transverse, gibbous in the middle, bicornuted anteriorly, the mar- 

 gins dilated and crenidate. Elj-tra short, very convex, tuberculate, 

 with broad crenulate margins. Legs of moderate size ; tarsi with the 

 first three joints veiy short, equal, with fine hairs beneath. Prostemum 

 strongly compressed. Mesosteruuni toothed. 



In habit this genus closely resembles the Dlapens horrida, 01., 

 with which Mr. Walker's Asida liorrida is probably identical. Its 

 real affinity, however, if we are to be guided by the tetramerous 

 tarsi, is with EndopTiloeus, Pristoderus, and some other little-known 

 and even undescribed forms among the Colydiidifi, but differing from 

 all in its head being perfectly hidden by the prothorax when viewed 

 from above*. 



Byrsax coenosus. (PI. III. fig. 7.) 

 B. rotimdatus, pellicula fusco-murina iudutus, infra piceus ; antennis 



palpisque brunneis. 

 Hab. Singapore. 



Nearlv orbicular, very convex, dark brown, covered with a thin 

 yeUowish-brown pellicle, which readily peels off" ; prothorax with two 

 short porrect horns in front ; scutellum small, triangidar ; eljii-a each 

 with three tubercles placed near the sutiu-e, the two anterior much the 

 largest ; body beneath pitchy ; antennae and palpi light brown. Length 

 4 lines. 



The figures represent the head as seen from below, and the inter- 

 mediate tarsus. 



SpH-aEROMOKPHTis [Scarabeidae]. 

 Germar, Zeitschr. fiir d. Entom. iv. p. 111. 



SpTiceromorphus acromicdis. 

 S. convexus, fusco-piceus ; prothorace antice elevato, basi inaequali ; elytris 



suboblongis, elongato-pimctatis, humeris elevatis bituberosis. 

 Hab. Singapore. 



* The male (wliich I have only just noticed in the British Museum) has two 

 long erect horns on the head. The same collection contains a second species of 

 this genus, also from Singapore. 



