276 



WHEELER. 



" Head narrowed behind the eyes in the form of a cone and somewhat 

 constricted at the occiput, where it is very narrow, a conformation 

 which is more pronounced in this species than in L. varians Emery. 



" Uniformly pale testaceous, often with an elongate brown spot on 

 each side of the gaster. 

 "Male. Length 7-8 mm. 



"Head rhomboidal, elongate, narrowed anteriorly and posteriorly. 

 Mandibles linear, toothless, truncated at the tip. Pronotum bigib- 

 bous, with a median sulcus. Petiole growing broader posteriorly, 

 twice as long as broad. Posterior femora and 

 tibise flexuous. In the genital armature the 

 stipes is simple and hairy, the volsella long, 

 curved like a hook; between the stipes and 

 volsella there projects a straight styliform 

 lacinia, provided with a small, smooth appen- 

 dage. In the fore wing the outer branch of 

 the cubital is detached from its trunk. 



"Yellowish testaceous; mandibles, antennae, 

 femora and tibiae brown in some specimens; 

 tarsi very pale. Wings smoky, with brown 

 veins." 



Aru Islands (A. R. Wallace). 

 British New Guinea: Moroka, Bujakori, 

 Haveri, Paumomu River (L. Loria). 

 Ceram (Tauern). 



I have here translated Emery's brief descrip- 

 tion and reproduced his figure of the head of the worker. This phase 

 was rather vaguely described by Smith. Emery's figure show^ that 

 the species is closely related to pollens and varians. It may, how- 

 ever, be readily distinguished by the more constricted occiput and 

 the pale color of the gaster, which in all the other knowTi species is 

 largely or entirely black or very dark brown. 



Figure 9. Lepio- 

 myrmex fragilis F. 

 Smith. Head of work- 

 er after Emery. 



12. Leptomyrmex pallens Emery. 



(Fig. 10.) 



Emery, Bull. Soc. Ent. Ital. 15, 1883, p. 147, S Fig.; Ern. Andre, 

 Rev. d'Ent. 6, 1887, p. 290 d" ; Froggatt, Agric. Gaz. N. S. W. Sept. 

 1905, p. 23; Stitz, Sitzb. Ges. Naturf. Freunde Berlin, 1911, p. 368 cf ; 



