ON A NEW PLATYSMA FROM CHINA. 533 



24. A new Species of the Genus Platysma (Bon.) Tschit- 

 soherin, from China. By V. Lutshnik, Kievj Russia*. 



[Received April 25, 1916 : Read May 23, 1916.] 



Index. 



Ststematic : Page 



Flatysma mandshuricum, a]). \\: 533 



Steropinun, subgeii. ii 533 



Platysma mandzhuricum, sp. n. 



Black, shining ; legs and mouth-pai'ts pitch-black. 



Head large, smooth ; fiont with a longitudinal imjiression on 

 each side ; eyes convex. 



Prothorax snbqnadrate, nariowed behind, sides hardly rounded, 

 not sinuate before base ; the basal angles I'ounded oflt"; anterior 

 margin slightly emarginate ; base subtruncate ; the median line 

 impressed, ending behind in a punctiform impi'ession ; a single 

 deep and very wide, lightly piuictate, impression on each side 

 near the basal angles. 



Elytra a little wider than prothorax, convex, slightly rounded 

 on sides, truncate at base with the shoulders rounded ; apical 

 curve subsinuate on each side ; sti-ise strongly impressed, finely 

 punctate ; interstices subconvex, third with three punctures. 



Under surface impunctate ; apical segment ( c5' ) deeply foveo- 

 late towards middle and with one setigerous puncture on each 

 side of the anus. 



Metasternal episterna slightly elongate. 



Length 11 "5 mm. 



Hab. China : Manchuria (Chandaochedzy, 5. vii. 1914, A. 

 Alexandrov). 



One male specimen in my collection. 



I regard this species as belonging to the subgenus Steropinus, 

 subgen. nov., which, from its position, seems to be between the 

 subgenera Steropus Steph. and Eosterojytts Tschitsch. The form 

 of the prothorax separates it from E osier ojnis Tschitsch. and 

 approximates to Steropus Steph. From the last subgenus, 

 /Steropinus Lutshn. differs by its eloiigate episterna and foveolate 

 anal segment of the abdomen. 



* Communicated by tlie Skcketaet. 



