312 



introduced into fresh regions it is probably capable of becoming 

 a serious pest, as a race or very closely related species (A. sinicus) 

 introduced into the Hawaiian Islands has proved very destructive 

 to sugar-cane, its larvae feeding upon the roots. 



329. Adoretus vitticauda. 



Adoretus vitticauda, Arrow, Ann. Mag. Nat. Hist. (8) xiii, 1914, 

 p. 595. 



Brown, with the upper surface suffused with a slight metallic 

 lustre, and clothed with unevenly distributed decumbent yellowish 

 setae, forming longitudinal rows of alternately bare and densely 

 setose spots upon the elytra. Across the apical calli there is a 

 transverse series of tufts of still closer and longer setae, and the 

 pygidium bears three similar tufts in a transverse row far apart. 



It is elongate-oval and not very depressed. The head is 

 closely punctured, with a lightly punctured shining area in the 

 middle of the forehead, and the clypeus is small and semicircular ; 

 the eyes are large and prominent. The pronotum is strongly 

 and densely but unevenly punctured, with the sides strongly 

 rounded, the front angles nearly right angles and the hind angles 

 very obtuse. The scutellum and elytra are closely punctured, and 

 the cosrae of the latter almost obsolete. The extremities of the 

 elytra are dark, opaque, and thinly setose, and the calli are 

 prominent. A sharp keel extends along each side of the abdomen, 

 coinciding with the outer edges of the elytra. The hinder margin 

 of the propygidium is also sharply elevated and united to the 

 abdominal keel on each side by a short ridge in which the last 

 spiracle is situated. The front tibiae are broad and sharply tri- 

 dentate, the hind legs extremely short, and the hind tibiae inflated ; 

 the longer claw of the front and middle feet is very minutely 

 cleft at the apex, and the shorter claw of the hind feet is reduced 

 to a minute vestige. The antennae are 10-jointed, the fourth and 

 fifth joints short, and the third and sixth longer. 



cf . The eyes are larger than in the female. The teeth of the 

 front tibiae are sharply pointed, the first and second separated by 

 an acute notch, the third excessively short. 



$ . The teeth of the front tibia are strong and close together. 



Length, 9 mm. ; breadth, 4*5 mm. 



BURMA : Papun (Col. Adamson), Palon (L. Fea, Sept.) ; SIAM. 



Type in the British Museum. 



This is nearly related to A. compressus, "Wied., but differs in the 

 more conspicuous white tufts at the extremity of the elytra and 

 the pygidium, and also in the toothing of the front tibia, &c. 



330. Adoretus areatus. 



Adoretus areatus, Ohaus, Deutsche Ent. Zeits. 1914, p. 506, tig. 41. 



Ferrugineous red, with the antennae, femora^ and tibiae a little 

 paler, and clothed rather closely with fine but not very short 



