FORMICID^E. 



Fig. 4. Dorylus lavigat 



abdomen, a pale sericeous pubescence; head and scape of the 

 antennae fuscous black or brown, flagellum of the antennae, 

 mandibles, and legs castaneous ; wings hyaline with a fulvous 



brownish tint. Head short, 

 transverse, the region of 

 the ocelli only slightly raised. 

 Thorax gibbous in front ; 

 mesonotum very convex ; 

 scutellurn prominent, the 

 apex bearing a longitudi- 

 nal impression ; metanotum 

 rounded posteriorly ; legs 

 very short. Node of pedicel 

 broader than long, very 

 convex and rounded above ; 

 abdomen massive, robust, curved downwards, clavate towards the 

 apex. 



$ maj. Castaneous brown, smooth and 

 shining, punctures very small and sparse. 

 Head rectangular, much longer than broad, 

 the occiput emarginate, the front of the head 

 bearing a short medial longitudinally im- 

 pressed line or furrow. Thorax short, flat 

 above, about as long as the head ; legs short, 

 robust. Node of the pedicel much broader 

 than long, anteriorly with a gradual slope 

 forwards, posteriorly vertical ; abdomen mas- 

 sive, somewhat lighter in colour than the 

 head and thorax. 



$ min. Similar, smaller, much lighter in 

 colour. 



$ . Apterous, reddish brown, smooth and 

 shining. Head broad, transverse, destitute of eyes or ocelli ; 

 the mandibles narrow, sickle-shaped ; antennae short, geniculated ; 

 the flagellum 11-jointed : thorax somewhat narrow and constricted; 

 legs short and feeble, claws simple ; pedicel with a trapezoidal 

 node, broader than long, widely separated from the 1st abdominal 

 segment; abdomen very long, heavy and massive. (After 

 Ger 'stacker.) 



Length, <3 24 ; $ 32 ; maj. 8 ; min. 4-5 mm. 

 Hab. Lower Burma, near Eangoon (Fed) ; Teuasserirn, Haung- 

 draw valley, Mergui (Bingham). Found also in Borneo and 

 Java. 



3. Dorylus orientalis, Westw. P. Z. S. v (1835), p. 72, j Forel, 



Jour. Bomb. N. H. Soc. xiii (1901), p. 463, rf & 

 Dorylus longicornis, Shttck. Ann. N. H. v (1840), p. 321, 3 . 

 Labidus (Typhlopoue) curtisi, Shuck, t.c. p. 265, $5. 

 Alaopone oberthuri, Emenj, Ann. Mus. Civ. Gen. xvi (1881), p. 274, . 



c? . Brownish yellow, the mandibles and legs castaneous 



Fig. 5. Dorylus 

 Icevigatus, ^ uiaj. 



