FAMILY BOSTRYCHIDAE 



167 



Life History. Hectarthrum heros is a common 

 beetle in the forest throughout many parts of India. 

 It is at times to be found swarming beneath the 

 bark of trees, and is evidently predaceous upon a 

 variety of species of insects. 



In company with the Trogositita beetle above 

 alluded to, I bred it out, in September 1901, from 

 Terminalia tomentosa logs from Seoni, in the Central 

 Provinces, which were badly infested by S. crassum, 

 the beetle being evidently predaceous upon the 

 Sinoxylon. Towards the end of April 1909, again, 

 I obtained the insect from a Terminalia chebula 

 tree felled a short time before, which was being 

 tunnelled into by the Sinoxylon. In this latter case 

 the Hectarthrum beetles were ovipositing in the 



Hectarthrum heros, Fabr. tunnels of the Sinoxylon beetles, eggs quite unlike 

 India and Burma. those of the bostrychid being obtained. 



FIG. 112. 



Sinoxylon anale, Lesne. 



REFERENCES. Lesne, Ann. Soc. Ent. Belg. xli, p. 21 (1897); Sinoxylon sp. Ind. Mus. Notes, iii, 123 



(1894) ; Stebbing, Depart. Notes, i, 16 (1902). 



Habitat. Punjab, United Provinces, Central Provinces, Bombay, Bengal ; 

 Upper and Lower Burma. 



Trees Attacked. Terminalia belerica : Thana, Bombay (F. Gleadow) ; 

 Sal (Shorca robusta) : Singbhum, Chota Nagpur ; Mandla, Central Provinces, 

 and Dehra Dun (mihi); Sissu (Dalbergia sissoo): Changa Manga, Punjab 

 (B. O. Coventry etmihi) ; Phukihi (Acacia modesta) : Changa Manga (mihi) ; 

 Xylia dolabrifonnis and Shisham (Dalbergia latifolia) : Kanara (T. R. Bell) ; 

 Prosopis spicigcra : Sukkur, Sihd ; Terminalia tomentosa: Seoni (C. O. Han- 

 son et mihi}; Khair (Acacia catechu): submontane forests, Kumaun (mihi : 

 Bamboo (Dendrocalamus strictus ?) : Mohnyin, Katha (mihi): Pterocarpw 

 iiiarsiipiuin : Kahna, Mandla (mihi) ; ''Jungle Woods" spp. ? : Atar;in Rivt-r. 

 Tenasserim (mihi); Bamboo (sp. ?) : Salween River, Tenasserim (mihi . 



Beetle. Resembles S. crassum in appearance, but is smaller and of slighter build. 

 It is at lirst light yellow in colour, becoming darker-coloured as its outer parts harden. 



When mature it is oblong, slightly dilated behind. 

 Description. black, with the elytra anteriorly rufous chestnut. 



more or less dusky, with antennae, palpi, and 



eet testaceous, the thighs being paler in colour and the abdomen redd.sh 

 at the apex. Head tubcrculate on the front and pum tate. Antennae 

 end in a strongly fan-shaped club, the second joint of the club 1" 

 about six times as broad as long. Prothorax ver\ convex, culminating 

 in a point medianly on disk, rugose-punctate \\ith a transverse band ol 

 rasp-like elevations anteriorly an.l four teeth on lateral edges ol anterioi 

 margin; posterior portion depressed, Imeh rugose-punctate. KKua 

 truncate, widest apically, strongly rugose-punctate posteriorly, with two sharp 

 teeth on apical declivity. Length. 4 mm. to q .'. nun. 





/ 





FIG. 



Slll,<.\ Yl 



Lesne. 





1 13. 

 // anale, 



( h ( 



