242 A. Yovel— Indian Ants of the Indian Museum, Calcutta, ['No. 3, 



have found no stridulating organs and suspect the insect merely scrapes 

 dry leaves with end of abdomen. — Wood-Mason) . 



An aberrant specimen having the scale lower and more sqamif orm, 

 the scale-horns removed from one another and lowered towards the ab- 

 domen, the body more pilose, the thorax and the abdomen dark reddish- 

 brown, — also comes from Sibsagar. 



The FolyrJiachis furcata belongs to the group " armata'^ of Mayr. 



11. G. STRIATA, Mayr (Yerh. k. k. zool.-bot. Ges. Wien 1862), 

 $ and $ . The hairs on the body are yellowish brown and not black as 



Mayr has stated. The ? is only 11 millims. in length, differing from 

 the $ in having the abdomen very opaque, very closely punctured be- 

 tween the wrinkles ; then the spines of the pronotum and the superior 

 spines of the scale are shorter. The wings are wanting. Tavoy and 

 Sibsagar. 



12. P. MATREI, Roger (Verzeichniss etc., Berl. ent. Zeitschr (1863). 

 Subsp. P. intermedia, n. st., $. Differs from the P. Mayrei, i. sp., in 



having only scattered erect hairs (the tibise and scapi have only a few 

 very scattered erect hairs), the laminae frontales more approximated, the 

 abdomen brownish, with much less abundant gray (not golden) pubes- 

 cence. The sculpture of the abdomen can easily be seen through the 

 pubescence. Sibsagar. 



This subspecies is allied to P. proxima, Roger (Berl. ent. Zeitschr. 

 1863), by its erect hairs and by its approximated laminpo frontales. But 

 it differs from that species in the broadness and the stout form of its 

 thorax (stouter than in P. mayrei, i. sp.J, by its stout metanotal teeth, by 

 the very distant superior spines of its broad scale, between which is a 

 little tooth. 



The P. intermedia induces me, however, to believe that the P. proxi- 

 ma, Roger, is also only a subspecies of P. mayeri. A specimen of P. in- 

 termedia has the abdomen black. 



13. P. EELUCENS, Latr. (Hist. nat. Fourm.) ? decipiens, Roger (Berl. 

 ent. Zeitschr 1863) ? ? . This ? cannot be more accurately determined 

 without the ? . Pegu. 



14. P. L^visiMA, Smith, var. dichrous n., $ . Differs from the 

 typical form only in having the abdomen and the legs yellowish ful- 

 vaceous, with the antennae and the anterior part of the head reddish 

 brown. The rest of the body is black. Sibsagar. 



N. B. The species Polyrhachis affinis, Le Guillou, according to Mayr 

 (Pormicidae Borneenses, Ann. Mus. civ. Geneva, 1872), is synonymous 

 with P. hihamata, Drury. The name Polyrhachis affinis must therefore 

 be restored to the Polyrhachis vicina, Roger {vicina, Roger, "Verzei- 

 chniss, 1863, = affinisj Smith, Cat. Brit. Mus. 1858). Thus the last species 



