FAMILY CURCULIONIDAE 



401 



It is of importance that the life history of the insect should be carefully 

 studied and the habits of the larva ascertained, since the semul has a con- 

 siderable commercial utility in Assam. When the insect oviposits and 

 where the grubs feed are points requiring elucidation before we can say how 

 the attack is to be combated. 



Myllocerus carinirostris, Marshall, sp. nov. 

 REFERENCE. Ann. Mag. Nat. Hist. Aug. 1913, p. 184. 



Habitat. Tharrawaddy, Lower Burma. 



Tree Attacked. Teak (Tectona grandis}, Konbilin Forest, Tharra- 

 waddy. 



Beetle. Colour black or chestnut-brown, with brown and green 

 scaling ; the sides and underparts pale metallic green ; the prothorax 



dark brown above, with two narrow green 

 Description. stripes ; the elytra indistinctly striped, the 



intervals i, 3, and 5 being brown, the suture 



and alternate intervals rather paler and more or less irrorated with 

 green scales, especially at the base of 2. Head not continuous with 

 the rostrum in a single plane, but with the elevated base of latter 

 continued on to the forehead, being broadly truncate at its base, and 

 terminating abruptly so as to form a transverse furrow between the 

 eyes ; the latter widely separated and almost circular. Rostrum 

 about as long as bro^d, longer than the head, somewhat dilated at 

 the apex, the apical margin deeply and acutely incised, the raised 



FIG. 271. 

 Myllocerus carini- 



dorsal area depressed in the middle without any central carina, the rostris, Mshl., sp. nov. 

 lateral carinae elevated far above the upper margin of the eyes and Tharrawaddy. 



forming an angular prominence above the insertion of the antennae. 



Antennae stout, the scape reaching the middle of the prothorax, with conspicuous curved setae, 

 and brown and green scaling, the funicle with the basal joints elongate, 2 longer than i, 

 3 slightly longer than 4, 2 and 6 with whitish scaling. Prothorax sub-cylindrical, the sides 

 almost straight, the apex scarcely narrower than base, the basal margin deeply bisinuate, the 

 apical margin roundly prominent ; when the scaling is intact the upper surface is closely 

 covered with small punctures, each containing a short scale-like seta, and there is a shallow 

 transverse impression behind the middle. Elytra comparatively broad, \\ith the shoulders 

 rather prominent, the sides slightly sinuate behind the shoulders and rounded posteriorly, being 

 broadest behind the middle, the apices broadly truncate, the longitudinal curvature very 

 convex, the striae deep and distinctly punctate, the intervals convex and closely set \\itli 

 short, sub-erect, broad, scale-like setae. Legs red-brown, with green and grey scaling, all 

 the femora with a small tooth, the tibiae simple. Length, 5 A mm. to 6 mm. Breadth, 

 j \ mm. to 3 mm. 



In specimens which appear to be females of this species, the rostral plate is rather 

 narrower, and its sides are distinctly sinuate and not strongly carinate. The presence 

 of this rostral plate will distinguish this Mylloicrns from every other described species. 

 .Marshall desert) 



I took a specimen of this weevil on a leaf of a teak seedling in a 1904 

 tounggya plantation in the Kadin Bilin forests towards the end of January 

 1905. I know nothing further about the insect. 



9003 C C 



