290 Mr. C. 0. Waterhouse on new 



Mallaspis BucMeyi, n. sp. 



Obscure olivacea ; antennis laete violaceis, articulationibns arti- 

 culisque apicalibus rufo-flavis, tborace fortiter punctato, lateribus 

 dentatis ; elytris rugosis, ferrugineis, basi olivaceo tinctis. 



tf. Long. 26-33 lin. 



$ . Long. 30-32 lin. 



This species closely resembles M. scutellaris m. form, colour, 

 and appearance, but differs in the following particulars : — 

 Thorax in both sexes more strongly punctured, the lateral 

 denticulations less numerous and more prominent. The trans- 

 verse ridges of the presternum are very strong ; and all the 

 punctuation on the underside is much stronger, especially on 

 the sides of the metasternum. The abdomen is olivaceous 

 and densely punctured ; in M. scutellaris it is tinged with 

 pitchy, is less punctured, more shining, and in the female is 

 almost smooth. Besides these differences, the female differs 

 in having the antennas longer, and the third to eighth joints 

 are nearly parallel instead of being elongate-elliptical as in 

 M. scutellaris. 



Hah. Sarayacu. 



Udeterus elegans, n. sp. 



Flams; capite, tboraco, scutello, epipleuris clytrorumque apice 



piceis, antennis corpore longioribus. 

 2 . Long. 7-L lin. 



General appearance of a Myzomorplms scutellatus, Salle, $ , 

 but with the antennas longer than the whole insect, and with 

 more acuminate elytra, &c. Head, thorax, and scutellum 

 very densely and rather finely granulose punctate. Antennae 

 pale pitchy, shining ; the second joint small but well deve- 

 loped, the third, fourth, and fifth long and slender, the sixth 

 to tenth joints having their apical angle produced into a 

 rather long sharp process, that of the sixth joint smaller than 

 the others, the ninth, tenth, and eleventh joints longitudinally 

 impressed on their outer side above. Thorax not quite so 

 strongly transverse as in M. scutellatus, the surface more 

 uneven, the lateral spine rather more forward, rather more 

 prominent and very acute at its apex ; the base sinuate on 

 each side and with a rather broad arcuate lobe in the middle, 

 over the base of the scutellum. Elytra coarsely and very 

 closely punctured, nearly as long as the abdomen, rapidly 

 narrowed from below the shoulders, narrowed from the inner 

 side as well as the outer ; the apical angle rather acute, 

 infuscate. Prosternal process longer and more parallel than 

 in M. scutellatus, a little narrowed at the apex. Metathoracic 



