04A [November, 



bordered by a sinuous whitish line or patch (which often encloses a small dark 

 spot), the vestiture of the under surface and legs brownish white, the anterior 

 portion of the broad pygidial stripe sometimes fulvous. Head densely, finely 

 punctate ; antennae rather short, still shorter in 5 , the joints 6-10 transverse, 

 moderately broad. Prothorax convex, broader than long, rapidly, arcuately 

 narrowing from the base forward ; closely, conspicuously punctate, with very 

 minute punctures intermixed. Elytra oval, comparatively short, flattened 

 on the disc, strongly dilated inferiorl}^ (as seen in profile) below the 

 humeri ; with finely punctured sharply-cut striae, the interstices densely, rugu- 

 losely punctate. Pygidium very large, oval, densely rugulose, the sinuous 

 inner edge of the whitish lateral patch disguising the true margin. Posterior 

 femora broad, armed with a very minute tooth before the tip beneath ; posterior 

 tibiae compressed, stout, cariuate, sharply toothed at the inner apical angle. 

 Length 3|-4, breadth 2 mm. 



Sal). India, Delira Dun {B. S. Hole). 



Described from a long, variable series bred during July of the 

 present year from seeds of Acacia gagiana sent to the Botanical Depart- 

 ment of the British Museum. Dr. G. A. K. Marshall cannot identify 

 tliis species with any of the numerous known Indian members of the 

 group, and it is at his request the description has been di'awn up hy 

 myself- and included in the present paper. The sexes, if correctly 

 identified by me, differ in the length and colour of the antennae, these 

 organs being shorter and paler in the supposed females. The long 

 pygidium, Avitli a broad, mesially constricted, white-bordered, black 

 stripe, is a conspicuous feature in the pi'escnt insect. 



Ilorsell. 



Au(/vst 22nd, 1919. 



NEW BAEK-BEETLES FROM THE NEIGHBOUEHOOD OF 

 VLADIVOSTOK (EAST SIBEEIA). 



BT PAUL SPESSTTTSEY (SPESSIWZEFP), 

 Assistant Entomologist in former Imperial Forest Institute, Petrograd. 



(Plates XV, XVI.) 



JEccoptogasier jacohsoni, sp. n. 



Length 3'8-4'5 mm. Dark brown, with the elytra and legs lighter; 

 antennae reddish. Front compressed in the male, clothed with yellow hairs, 

 which are less dense in the middle and are somewhat inclined towards tlie 

 centre; convex in female, impressed over the mouth, and almost glabrous; 

 the vertex in female with a median impressed line. Fronotum a little broader 

 than long (7:6); the punctures rather fine on the dorsal area, becoming coarser 

 and separate one from another on the anterior and lateral areas ; the piuicturaiion 

 resembles in general that of Eccojjtogaster ratzeburgi Jans., but is visibly coarser. 

 Fdyira bright, about as long as wide (16:14), with almost parallel lateral 



