58 " Indian Museum Notes^ [Vol. VI. 



which had attacked the leaves of rice plants grown under shelter in 

 the Indian Museum compound. The coccinelled feeds upon the scale 

 in both its larval and adult stages of life. 



Genus Symnus. 



Kugell Schneid. Mag. 10 (1794), {typ. frontalis). 



Folds of the elytra not deeply pitted. Antennae very short, hardly 

 reaching Jth down prothorax ; 10-jointed, joints 1-2, equal-sized, 

 soldered together. 



12* Scymnus rotundatus. 



Scymnus rotundatus. Mots. Et. Ent. VIII. p. 170 (1859). 

 I. M. N.— Previous reference, I. 6, 154.; IV. 4, 218. 



Predaceous upon Pseudococcus adonidum. 



Sub-hemisphaericus, subtilissime dense punctulatus, brevissime 

 cinereo-puberulus niger ; ore untennis pedibusque ruto-testaceis, 

 femoribus abdomineque infuscatis ; corpore subtus nitido, punctato ;. 

 thorace valde transverso, antice arcualim angustato, angulis posticis 

 subrectis ; scutello minutissimo, triangulari ; elytris ad basin thoracis 

 latitudine, arcuatim dilatatis, rotundatis, humeris indistinctis. 



Near S. ater, but more rounded, without humeral angles. Abdo- 

 minal laminae triangular. L-f lin. 



Distribution. — Ceylon. 



Life-History. — This beetle was reported some years ago by 

 Nieter to feed upon the white bug of coffee bushes, Pseudococcus 

 adonidu?n } in Ceylon. Nothing further appears to have been observed 

 J n its life-history. 



13, Scymnus sp. 



I. M. N- — Previous reference, III. 5, 50. 



Predaceous upon herya aegyptiacum Douglas. 



Beetle. — Yellow to orange in colour, ovate and shining. Head 

 yellow with black eyes. Anterior outer angles of thorax project,, 

 the anterior margin being concave, the posterior convex and 

 pointed medianly. Elytra lighter-coloured, covered with a scattered, 

 pubescence. Legs orange-yellow. Long, i — i'i millim. 



Distribution. — Calcutta (Indian Museum compound). 



Life-History. — The mature beetle was found sparingly feeding 

 upon the scale insect Icerya ssgyptiacum in the beginning of June 

 1894. 



