54 bulletin: MUSKl'M OF fOMPAHATIVK ZOciLOGY. 



lyiacamma rugosum subsp. ((vrtuolosum Emery, Ri'iul. R. acoatl. sci. Bologna, 

 1897, 1896-97, n. s., 1, p. IGO; Emery, Cien. Ins. Ponerinai', 1911, p. 07. 



TyjH'-lvcality: Ceraiu (A. R. Wallace). 

 Tandjong, S. E. Borneo (Fritz Suek). 



19b. Dl\camma rugosum subsp. geometricum (Smith). 



Ponera geometrica Smith, Joiirn. Proc. Linn. soc. London. Zool., 1857, 2, 



p. 67, 8 . 

 Diacamma geonietricuni Ma>T, \'erh. Zool. hot. gesellsch. Wicn, 1862, 12, 



p. 718, a . ' 



Diacomma jaranum Emery, Ann. Mus. civ. Geneva, 1887, ser. 2, 5, p. 439, U . 

 Diacariirua rugosum subsp. geometricum Emery, Rend. R. accad. sci. Bologna, 



1897, 1896-97, n. s., 1, p. 154, fig. 3, 8, 14, 5 ; Emery, Gen. Ins. Ponerinae, 



1911, p. 66, y . 



Type-locality: Singapore (A. R. Wallace). 



Banguey I., X. Borneo (Emery). 



A worker and t:v\'o males taken in British North Borneo (E. B. 

 Kershaw). The male measm-es 8 mm., and is ferruginous red, with 

 the posterior part of the head and some indistinct spots on the mesono- 

 tum dark brown. Wings slightly infuscated, with dark brown veins 

 and pterostigma. Antennae very long (7 mm.), mandibles small, 

 narrow, edentate, with acuminate, pointed tips. Petiole Ij times 

 as long as broad, narrowed in front, but with very prominent stig- 

 matic tubercles; in profile about as long as high, triangular, with 

 sloping, slightly concave anterior and abrupt posterior surface and 

 blunt apex. Pygidiiun small, bluntly rounded, cerci well-developed; 

 genitalia partially exserted. Bbdy shining, sparsely and finely 

 punctate. Hairs brown, short, rather abundant, pubescence pale, 

 more abundant, and like the hairs, on all parts of the body. 



19c. Di.\CAMMA RUGOSUM subsp. VAGANS Smith var. birmanum 



Emery. 



Diacamma rugosum subsp. vagans var. birmana Emery. Ann. Mus. civ. 



Geneva, 1887, ser. 2, 5, p. 441, S ; Emery, Gen. Ins. Ponerinae, 1911, p. 67; 



Forel, Rev. SuLsse zool., 1911, 19, p. 23. 

 Diacamma rugosum subsp. sculplum var. hirmana Emery, Rend. R. accad. sci. 



Bologna, 1897, 1896-97, n. s. 1, p. 157, 5 . 



Type -locality: Minhla, Burmah (Comotto). 

 Sarawak (Haviland). 



