234 Records of the Indian Museum. [Voi,. VIII, 



broader in front than behind, with straight sides and deeply, 

 arcuately excised posterior margin, and a median longitudinal 

 groove which is faint or obsolete in the region of the vertex. 

 Smallest workers with the head a little broader behind than in 

 front, with more convex sides and the longitudinal groove often 

 indistinct or lacking, except on the anterior and posterior portion 

 of the head. Clypeus projecting somewhat only in the largest 

 workers. Antennae g- jointed in all the workers, joints 3-7 of the 

 funiculus broader than long. Thorax as in orientalis, epinotum 

 with a distinct longitudinal impression. Petiole fully i|- times as 

 long as broad in the large workers, at least as long as broad in 

 the smallest. Hypopygium with three subequal points as in 

 orientalis. 



Whole body more glabrous and shining than in orientalis, 

 punctures on the head decidedly smaller and further apart ; some- 

 what coarser on the thorax and petiole. These parts are also 

 shagreened so that they appear somewhat less shining than the 

 head, especially on the sides. 



Minute, yellow, appressed hairs arising from the punctures on 

 the head and body much shorter and less conspicuous than in 

 orientalis. 



Head, thorax, petiole and antennae of the large workers rich 

 ferruginous red ; mandibles and clypeus darker ; gaster and legs 

 paler; in the smallest workers the whole body is reddish yellow, 

 the mandibles light red 



Described from a dozen workers from Mulmein, Lower 

 Burma. 



This form is certainly distinct from orientalis in the longer 

 head of the large worker, in sculpture and pilosity, and in having 

 the petiole longer than broad instead of distinctly broader than 

 long. As both Emery and Forel are agreed that Alaopone curtisi, 

 Shuckard and A. oberthiiri, Emery, are merely synonyms of 

 orientdlis, West wood, and as this latter species is the only one 

 known from the Oriental Region, I am compelled to regard the 

 Burmese specimens as representing a new form. It may, perhaps, 

 have only subspecific value and may be the hitherto unknown 

 worker of A. fusca, Emery or longicornis, Shuckard, two subspecies 

 of orientalis known only from male specimens. A. vishnui differs 

 from A. conradi, Emery, of Togo, the only other Alaopone besides 

 orientalis with a known worker, in its much shorter head (the head 

 of the large worker conradi is nearl}' twice as along as broad) and 

 in the darker colouration. 



Subfamily MYRMICINAE. 



11. Sitna rujonigra, Jerdon. 



One worker and two dealated females from Sadiya, 

 N.E. Assam and Kobo, 400 ft. 



12. Pheidologeton {Aneleus) aborensis, sp. nov. 

 Soldier. Length 3 — 3*5 mm. 



