68 SUMATRASIA. 



rounded , entire. Palpi robust , third and fourth joints of 

 equal length , the latter conical. Antennae filiform , second 

 joint one half the size of the third , the latter and follow- 

 ing joints nearly equal. Thorax subquadrate, slightly 

 broader than long, convex, narrowed anteriorly and poste- 

 riorly, anterior angles obsolete, posterior ones acute. Scu- 

 tellum broad, subtrigonate , its sides rounded. Elj^tra elon- 

 gate, punctate-striate , their epipleurae continued to the 

 sutural angle. Legs slender. Tibiae unarmed , posterior 

 first tarsal joint slightly longer than the 2 following ones 

 united. Claws appendiculate. Prosternum extremely narrow. 

 Anterior coxal cavities open. 



Distinguished from all the genera belonging to the present 

 group (the 11th of Chapuis) by the punctate-striate elytra 

 in connection with the subquadrate thorax. 



Sumatrasia unicolor, n. sp. 



Oblong , testaceous below. Above pale fulvous. Thorax 

 subquadrate, impunctate. Elytra subgeminate punctate- 

 striate. — Length 3 lines. 



Head with a very deep transverse groove. Encarpae 

 strongly raised , carina narrow , acutely raised. Labrum 

 large, with a transverse row of punctures. Antennae of 

 nearly half the length of the body, testaceous, the apical 

 joint black at the apex , first joint elongate , gradually 

 thickened, second of half the length of the third. Thorax 

 subquadrate , narrowed from the middle to the base , the 

 former subangularly produced and obliquely cut to the 

 apex, anterior angles obtuse, posterior ones acute, surface 

 rather convex , entirely impunctate. Scutellum broader than 

 long, subtrigonate. Elytra slightly depressed below the 

 base, each elytron with about ten rows of fine punctures 

 arranged slightly in double lines but disappearing entirely 

 at the apex. Underside pubescent. Posterior first tarsal 

 joint as long as the 2 following ones united. 



]>^otes from tlie Leyden Museuua, "Vol. VI. 



