wmii.KU: riiK ants of hohmo. 



Tliis spcfirs is ((uitc «iisliiut from tlu- otiicr Kasf Indian IMiysu- 

 rrt'inas, rspccially (hf(iriiii.'<, iiijhita, and tumidiihi Knicry, and easily 

 rocopiizcd l)y its larjre size, course seiil|)turc, un<l Wi'll-<lcvel<)jKM| 

 epinotal sj)ines. It is niueh more closely related to u form descrihed 

 hy Fon'I from Malacca as ('. dcformis suhsp. vncva (Hull. Soc. \'aud. 

 sci. nat., nUl, scr. a, 47, p. ;iS4) hut wliicli, I Ix-licvc. slionld he re- 

 pirded as an independent sju'cies. This Malaecan form, however, is 

 hlack, measures only 3.3-3. ') mm., and has theepinotum much less .swol- 

 len, and ajiparently even less distinctly constricted off from the mesono- 

 tum than in sfitluxjonipha, and the postjn'tiolc is sulcate dorsally. It 

 is, perhaps, admissiiile to rcjrard stdhogomphn as a suhspecies of vacca. 



*S2a. Crem.\togaster (Piivsocrema) stethogompha \:ir. detui- 

 TiNODis, var. nov. 



Worker. Length 3.5 mm. 



Differing from the typical form in liaving the head less distinctly concave 

 behind and in sculpture, the rugae of the head and thorax being finer, so that 

 the dense puncturation is more apparent and the vermiculate rugosity of the 

 thorax is laxer and finer, especially in the middorsal region. The petiole and 

 postpetiole are shining, the former elongate elliptical, the latter with a dLstinct 

 median furrow. Mandibles more yellowish than in the typical form. 



A single worker from the Sarawak River. Kuching (H. W. Smith). 



S3. Crem.\tog.\ster (O.xygyxe) d.aisyi Forel. 



Crema-stogaster (Oxygyne) daisyi Forel, Ann. Soc. ent. Belgique, 1901, 45, p. 

 376, 3 9. 



Type-locaUty: Sarawak (HaWland). 



S4. Crem.vtogaster (Decacrema) decamera Forel. 



Cremastogaster (Decacrema) decamera Forel, Ann. Soc. ent. Bslgique, 1910. 54, 

 p. 18 nota, y 9 c^. 



Type-locality: Sarawak 'Haviland). 



Five workers and a deiiiated female from Kuching (John Hewitt), 

 "from ]Macaranga with slightly trifid leaves," and a winged female 

 from British North Borneo (E. B. Kershaw). 



