334 Mr. G. J. Arrow on the 
Two specimens found by M. Vitalis de Salvaza are all 
that are yet known of this species. 
It is the largest of the genus known to me and is rather 
less hemispherical in shape, with shorter antennz, than its 
congeners. It is, however, allied to B. longicornis, and has 
closely similar markings. The pale fascize are more dis- 
tinctly interrupted at the suture and the inner black basal 
spot is nearer to the shoulder than to the scutellum. The 
pronotum is relatively longer, more contracted in front, less 
distinctly margined at the sides, with feebler basal fovee. 
The elytra are less strongly and regularly punctured, and the 
punctures are large and small intermixed. The last three 
joints of the antenna form more than a third of its total 
length and the two preceding joints are distinctly larger 
than the three immediately before them. 
Endomychus divisus, sp. n. 
Fulvus, ecapite, prothorace, scutello, pedibus antennisque nigris ; 
sat late ovatus, convexus, pedibus antennisque parum gracilibus, 
pronoto breviter transverso, nitidissimo, medio subtilissime 
punctulato, lateribus subparallelis, marginibus elevatis, angulis 
anticis rotundatis, late excavatis, posticis acutis, basi stria 
profunda marginato, foveis basalibus profundis ad medium attin- 
gentibus; elytris ubique distincte sat sequaliter punctatis, 
convexis, ad humeros latis; antennarum clava laxe articulata, 
longitudine ad articulos 5 preecedentes eequali, his moniliformibus. 
Long. 45-5 mm. 
Inpo-Cuina: Luang Prabang (March), Upper Mekong, 
Pou Hai Katoui (R. V. de Salvaza, April). 
This has a rather close resemblance to the Japanese 
Pheomychus rufipennis, Mots., with which it is identical in size 
and coloration, but differs in the absence of a stridulating 
apparatus upon the head and of sexual difference in the 
front tibiz. In actual relationship it appears to be nearest 
to E. (Cenomychus) plagiatus, Gorh., but it is a more stoutly- 
formed insect, with less slender legs and antennz and 
broader prothorax. The pronotum is exceedingly finely 
and scantily punctured, distinctly margined at the sides, 
with the front angles rounded and broadly hollowed out, 
the hind angles acutely produced and the basal impressions 
broad and deep. The elytra are distinctly punctured, a 
little broader at the shoulders than the pronotum, and only 
very little wider behind the mmddle. 
