440 FAMILY CUKCULIONIDAE 



In June 1900 Mr. F. Gleadow, Deputy Director, Imperial Forest School, 



Dehra Dun, sent to the Indian Museum, Calcutta, some 



Life History. specimens of this insect, which he reported as infestino^ 



the fruits of Tenninalia bel erica. The small black 



weevils were found inside the ripe fruits. The insects were sent to 



M. Desbrochers des Loges, who stated that they were probably a new 



species of Baris (Indian Museum Notes). 



Cyrtotrachelus. 



An important genus of weevils, some species of which hollow out 

 the growing shoots of young bamboos. 



Cyrtotrachelus longipes, Fabr. 



References.— C«;'ch//o longipes, Fabr. Fnt. Syst. torn, i, 395 ; Stebbing, Depart. Notes, i, 193 (1903). 



Habitat.— Chittagong Hill Tracts. Also reported from the Cape of Good 

 Hope. 



Tree Attacked. — Muli Bamboo {Mclocanna baiiibusioides). Bamboojungles 

 in neighbourhood of the Karnafuli River, Chittagong Hill Tracts 

 (J. P. Gregson et niihi). 



Beetle.-- The beetle is a large, shining, rufous-ferruginous coloured insect with a black 

 patch on the thorax, and black longitudinal patches on the sides of the elytra, and another 

 black longitudinal one running down the median suture of the elytra. 

 Description. The insect has a longish thick rostrum and long legs. 



$ Rostrum long, thick, straight, quadrangular, deeper than wide 

 at its base, and dilated and truncate at its tip, furnished on its upper surface with two 

 lateral rows of tubercles ; sci'obes short, placed laterally. Mandibles thick. Antennae fairly 

 long and stout : scape arched backwards slightly ; second joint of funiculus slightly longer 

 than others ; club fairly large, triangular, with apex at outer end ; pubescent on outer sur- 

 face. Prothorax slightly longer than broad, convex, smooth and shining, rounded at sides, 

 narrowing ventrally, and having a circular raised collar at its dorsal anterior edge which is 

 produced laterally on either side. Elytra longer than thorax, narrowing behind, and finely 

 but distinctly striated, the intervals between the striae being fairly broad. Looked at 

 superficially the upper integument appears to be without punctures. Legs long, thick, and 

 flattened ; the front ones longer ihan the hind, but only slightly so than the middle pair ; 

 femora thickened ; tibiae, more especially the anterior ones, ciliated on their inner edge, and 

 arched at their extremities and prolonged into a curved stout spine ; tarsus long, the first 

 joint longer than the second, the third heart-shaped; the segment of the body exposed by 

 the elytra (pygidium) triangular, convex, and ending in a point posteriorly. Body oblong- 

 ■elliptical, glabrous. 



$ much larger than S, with a longer rostrum. Front legs much longer than either 

 of the liinder pairs, their tibiae being very thickly ciliated on tlieir inner edges. Pygidium 

 blunter at posterior extremity than in $. I.engtli, ^ ig in., $ i^ in. (to end of rostrum 

 in each case). Length of rostrum in $, J,, in. ; in $, ^ in. See pi. xxxviii, c, d. 



Egg. -The eggs are elliptical in sliape, whitish in colour, and about f^_ in. in length. See 

 ifig. a. 



Larva.— The larva is a large, whitish, legless, curved grub, with slight fleshy tubercles 

 on the under-side of the body. It is shown in fig. /'. 



Pupa. The pupa is white in colour, and has the ordinary weevil shape. 



