MIMASTRA SUMATRENSIS. 43 



narrow, the sides narrowed towards the base, finely and 

 narrowly margined , surface transversely and deeply im- 

 pressed at the sides , less deeply at the middle , entirely 

 impunctate, shining. Elytra finely rugose-punctate, their 

 epipleurae extending to the apex. First posterior tarsal 

 joint as long as the two following ones united. Claws ap- 

 pendiculat(;. Anterior coxal cavities open. 



A specimen from Silago and another from the District 

 of Rawas (Sumatra-Expedition). 



This species differs from M. gracilis Baly, to which it 

 seems closely allied, in the different proportionate length of 

 the joints of the antennae, in the shape of the thorax 

 which is not angulate, and in the entirely uniform colour 

 of its body and legs. 



Mimastra submetallica , n. sp. 



Elongate, testaceous. Breast, knees, tibiae and tarsi 

 black. Head and thorax impunctate. Elytra closely punct- 

 ured, subrugose, with a faint metallic greenish gloss. — 

 Length 3 — 4 lines. 



9 larger; underside entirely black. 



Head impunctate. the frontal tubercles contiguous. Cly- 

 peus triangular. Antennae as long as the body , testaceous , 

 the third joint but little longer than the second , fourth 

 joint as long as the 3 basal joints together. Thorax trans- 

 verse, the sides nearly straight, narrowly margined; sur- 

 face with a transverse depression at each side , impunctate. 

 Elytra slightly widened towards the apex , finely and closely 

 punctured , the interstices finely rugose especially towards 

 the suture , obscure testaceous or flavous with a slight 

 greenish metallic reflection. Legs slender, unarmed. Claws 

 appendiculate. Anterior coxal cavities open. 



Specimens from Silago , Sidjoendjoeng , Si Bakoer , the 

 District of Rawas and Koetoer (Sumatra-Expedition). 



Notes from the Leyden IMuseuin, Vol. "VI, 



