404 



dense pubescence. Spines bare. Legs with thin grey pubescence. 

 The exterior of the underside of the head and abdomen with very 

 short erect hairs. Head highly convex, the antennal carinae close 

 together. The posterior margin shortly elevated. Eyes pro- 

 minent, convex. Clypens with the lobe truncate. Scape rounded. 

 Thorax laterally sharply rounded. Pronotum with a curved spine 

 on each side directed forwards, somewhat inwards and downwards. 

 The lateral margins of the mesonotum and of the basal portion of 

 the metanotum are furnished with triangular lamina. The basal 

 and sloping portions of the metanotum pass one into the other 

 without an angle, and the margin on each side bears a small obtuse 

 tubercle. Pedicel with four spines, the lateral short, pointing 

 upwards, the median long, divergent, arched backwards and 

 shaped to the curvature of the following segments. 



" Length, % 9-9'5 mm. 



" $ . Colour, sculpture and pubescence as in the $ . Spines on 

 the pronotum and on the node of the pedicel much thicker and 

 shorter ; the tubercle on the metauotum, on the contrary, sharper 

 and more prominent. Length, 10-10-5 mm." (Emery.) 



ffab. Ceylon, Nalanda. Unknown to me. 



482. PolyrhacMs mayri, Roger, Verz. Form. Gatt. u. Art. (Berl. ent. 

 Zeit. vii, 1863). p. 7, S ; ' Forel. Jour. Bomb. N. H. Soc. viii (1893) 

 pp. 20 & 29, $'. 



Polyrhachis relucens, Mayr (nee Latr.\ Verb, zool.-bot. Ges Wien 

 xii (1862), p. 685. 



. Black ; covered with a dense golden recumbent pubescence, 

 and with a fairly thick mass of short erect hairs. Head from in 

 front very broadly oval, almost circular; clypeus convex, its 

 anterior margin arched, antennal carinae short, wide apart. Thorax 

 strongly arched, compressed, wide anteriorly, narrowing rapidly 

 posteriorly, slightly convex between the lateral margins, which are 



Fig. 140. Polyrhachis mayri, $. 



deep, overhanging the vertical sides, pro-meso- and meso-inetanotal 

 sutures distinct ; pronotal spines broad at base, slender and acute 

 at apex, pointing almost horizontally forwards and outwards ; a 

 .sharp transverse carina, with its lateral points subdentate, separates 

 the basal portion of the metanotum from the oblique concave apex ; 

 legs moderately long, pubescent, the tibiae cylindrical. Node of 

 pedicel broad, cuneiform, biconvex, the upper lateral angles sur- 

 mounted by spines diverging outwards, and below their bases on 



