WIIF.KLF.U: TIIK AMS (>K HOHNF.O. 11') 



Rluck; thorux ami iH-fiolc <lark brown; upix-r surface of cpinotiiin and hoiiu- 

 8pot8 on lh(> pleurae fcrruniuous; roxae ami femora lirownish yellow; tibiae, 

 tarsi, and funiculi dark brown; t<'nninal tarsal jointa, claws, and emfHxiiu 

 iXHldLsli. 



W'orkrr inimir. L«'iij;th noiiriy 5 mm. 



Very similar to the major worker. ex(ej)t that tiie lu ad is much smaller, 

 proixirtionally lonp-r. with straight posterior border, more prominent eyes 

 and the anteiinal scmim-s extending about f their length beyond the occipital 

 bonier. The ei)iiiotal declivity is slightly concave and a little more slopiiiR, 

 the i)ctiolar node is deci<ledly thinner. The thorax and legs an* dark brown, 

 except the articulations of the latter and the tarsi l)eyond the ba.sal j<iint, 

 which are reddish. The erect hairs on the legs are somewhat le.ss numerous. 



Dcscrihod from two major and two minor workers taken by Mr. 

 William Beebc on the Mujong River, Sarawak, "running on bushes." 



Like the preceding, this is a very peculiar species, which I have 

 placed in Forel's subgenu.s Mynno.sphincta on account of its thoracic 

 structure. In my opinion this subgenus is an unnatural assemblage 

 of forms, but in the present stage of mynnecology it is useful as a 

 catch-all for the species with markedly sellate thorax. The tarsi and 

 claws of C. mcgalonyx show that it is a true arboreal ant. It exhibits 

 certain peculiarities in the structure of the clypeus and thorax that 

 recall the conditions in Colobopsis. 



174. Camponotus (Colobopsis) pilosus (Smith). 



Formica pilosa Smith, Journ. Proc. Linn. see. London. Zool., 1S.57, 2, p. .54, 8 . 

 Colobopsis pubescetus Mayr, Verb. Zool. bot. gesellsch. ^^■ien, 1802, 12, p. 691, 



S 9 {nee Fabricius). 

 Camponotus pubescais Emerj-, Ann. Mus. civ. Geneva, 1SS9, ser. 2, 7, p. 517. 

 Camponotus (Colobopsis) Iconardi Emerj', ibid., p. 515, 9. 

 Camponotus (Colobopsis) pilosus Forel, Rev. Suisse zool,, 1911, 22, p. 272. 



Type-locality: Sarawak, Borneo (A. R. Wallace). 

 Kapouas Basin (Chaper). 



Soldiers, workers, and females from British North Borneo (E. B. 

 Kershaw), Kuching and Rambungan River (H. W. Smith). 



175. CAiiPONOTUS (Colobopsis) badius (Smith). 



Formica badia Smith, Journ. Proc. Linn. soc. London. Zool., 1S.57, 2, p. .54, U . 

 Camponotus badius Ma3T, Verh. Zool. bot. gesellsch. Wien, 1886, 36, p. 354. 

 Camponotus (Colobopsis) badius Forel, Rev. Suisse zool., 1914, 22, p. 272. 



