FAMILY SCOLYTIDAE 589 



Xyleborus semigranosus, Blandford. 



Reference. — H land ford, Trans. Ent. Soc. Loud. p. 211 (1896). 



Habitat.— Ceylon. Also reported from Sumatra. 



Tree Attacked.— Cocoa-tree {Theobroiua cacao) (E. E. Green). 



Beetle —Oblong, slightly shining, ferruginous red, darker behind. Front of head rather 

 strongly punctured, the mouth fringed with pale hairs ; antennae pale testaceous. Prothorax 



as long as broad, strongly rounded at the apex, the sides very slightly 

 Description. curved, hind angles obtuse but not rounded, the base truncate ; 



surface with a very slight transverse median elevation, scantily but 

 uniformly pubescent with fine hairs, in front convexly declivous with granular asperites, some- 

 what irregular and scattered towards the apical margin, behind the middle cylindrico-convex ; 

 hnely punctured, the punctures stronger over the middle portion, median smooth line absent. 

 Scutellum triangular, shining. Elytra as wide as protliorax and about a third longer, base 

 truncate, shoulders rounded rectangular, sides parallel, abruptly inflexed at apex, the apical 

 margins sharply bordered below ; surface very finely and apparently confusedly punctate ; 

 declivity beginning before the middle, depressed, opaque without evident striation ; very finely 

 and closely granulate and set with single series of rather long upstanding hair^. Under- 

 surface darker, tibiae rounded above and finely serrate. Length, 2.4 mm. 



Specimens of this insect were forwarded to Mr. W. F. Blandford by 



Mr. E. E. Green as causing injury to the cocoa-tree 



Life History. {Trans. Ent. Soc. Land. pt. iv, 1898). The beetles 



tunnel into the wood to oviposit. The insect was first 



reported from Sumatra, where it is a pest of the tobacco. 



Xyleborus fornicatus, Eichhoff. 



References.— Eichhoff, Berl. Ent. Zeitschr. xii, 151 (1868); Blandford, Trans. Ent. Soc. Land. 



p. 213 (1896). 



Habitat. — Ceylon. 



Trees Attacked.— Tea [Camellia theifolia), Cocoa [Thcobroma cacao) 

 (E. E. Green). 



Beetle.— Very small, oblong, rather shining, varying from pallid testaceous to pitchy 

 fuscous, with long, sparse, erect setae. Front of head somewhat flattened, with an indistinct 



longitudinal elevation, shining, obsoletely punctate ; eyes small, 

 Description. narrow. Prothorax much broader than long, sides sub-parallel, 



apex very obtusely rounded, hind angles sub-rectangular, base 

 transverse ; surface strongly convex from base to apex, somewhat flattened in front, apical 

 half with very scattered granules, weaker behind, the basal half finely reticulate, feebly 

 punctured at the sides only. Elytra as wide as and nearly a half longer than the prothorax, 

 with gently curved sides narrowed behind and broadly rounded at the apex ; surface pul- 

 vinate° obliquely declivous and somewhat flattened from the anterior third, punctate at the 

 base, with scattered weak punctures on the interstices ; declivity weakly striate, the interstices 

 sub-convex, with elevate piliferous points. Antennae and legs light testaceous. Length, 

 1.4 mm. 



