382 PROCEEDINGS OF THE NATIONAL MUSEUM vol.93 



G longer than wide; joints 7 and 8 stouter than preceding, quadrate; 

 joint 9 as long as wide; joint 10 transverse; joint 11 oval, as long as 

 9 and 10 together. Pronotum three times as broad as long, finely, 

 evenly, and not closely punctured, narrowly margined; basal foveae 

 minute, very shallow; between these the pronotum is finely margined. 

 Elytra sparsely and coarsely punctured, especially in the regions of 

 the scutellum and humeri; the punctures finer toward apex. 



Type.—U. S. N. M. No. 55878. 



Type locality. — Surigao, Mindanao, P. I. (C. F. Baker). Pos- 

 sibly the same as B. septemmaculata Pic from Malacca but a little 

 smaller and with the legs black. Length 3.5 mm., width 1.75 mm. 



BECCARIA DENTICORNIS, new species 



Generally similar to the preceding but differs in several features, 

 including size. Antennae entirely black, joints 2 to 6 longer than 

 wide; joints 9 and 10 triangularly acuminate internally; joint 11 oval. 

 Head black. Pronotum three times as broad as long, finely margined 

 at sides and base ; basal foveae minute and shallow. The pronotum is 

 black at base between the foveae and has a median black area extending 

 anteriorly to the front margin, leaving the sides broadly yellow. The 

 light spots of the elytra are arranged as in B. septemguttata, but the 

 two anterior ones are quite elongate and the median common one is 

 much smaller. The punctures of the elytra are very coarse in the hu- 

 meral and scutellar regions. Legs, epipleurae, and the epimera and 

 lateral area of metasternum sooty. Otherwise the under surface is 

 dull yellow. The metasternum is very coarsely punctured toward 

 the middle. Length 4.5 mm., width 3.5 mm. 



Type.— U.S.N.M. No. 55879. 



Type locality. — Island Samar, P. I. (C. F. Baker). 



Genus MYCETINA Mulsant 

 MYCETINA CYANESCENS, new species 



An elongate species having the general aspect of Endomychus but 

 with an exceptionally developed stridulatory membrane on the front 

 margin of the pronotum. Entirely black except the abdomen, which 

 is reddish yellow, and the elytra, which are steel-blue. Each elytron 

 bears, just behind the humeral callus, a transverse yellow bar, which 

 closely approaches the lateral margin but is separated from the suture 

 by about its own breadth. This bar is twice as wide as long. The 

 antennae are half as long as the body, slender, joint 3 three times as 

 long as joint 2 but not much longer than 4; joints 2 to 8 progressively 

 shorter. Club distinct but gradually formed, not much longer than 

 joints 6 to 8 together; joint 11 transverse, truncate. Head, thorax, 



