mann: ants of the hiutish solomon islands. 343 



^vorkers tAvist the uaster to one side and emit from the anal opemn^ a 

 cvUndrical ^vhite mass of viscid matter, often up to ten nn hmeters m 

 en-nh that resembles a small worm. While ben.g emitted, tins curls 

 and twists in a life-like manner so that the first tune it ^^.is oi>served 

 and before I had located the motionless ant, I mistook it for a cluster 

 of verv small wonns. This same habit is common also to an un- 

 determined Fijian species, probably of the same genus, lypc- 

 M. C. Z. 9,175. 



70. RoGERiA epinotalis, sp. nov. 



Worker. Length 2-2.25 mm. 



Head longer than broad, broadest behind, with rounded corners and straight 

 oodpftal border. Mandibular blades with five small teeth^ ^'^'^T. 1^. 

 rounded anteriorly. Antennal scape extending two thirds the distance to 

 oorpltal corners, first funicular joint a little longer than the two succeeding 

 ^tZ together, joints two to sLx strongly t-sverse, seven om^^^^^^^^ 

 stronclv so, terminal joint equal in length to the three preceding jomts Eyes 

 ttle convex, situated at sides of head at a distance equal to their longitudinal 

 d "meter from bases of mandibles. Promesothorax robust, evenly convex 

 ar;"t sides. Humeral angles obtuse. Epinotu^ broadly and sWgb^ 

 concave; base very distinctly margined in front and at sides, d- ^ /ol^; 

 tinctlv separate from base and more strongly concave; spmes a little longer 

 ban the?r width at base, acuminate, divergent. Petiolar node in profile 

 deepe than bng, not narrowed above, with convex dorsun. and shghtly convex 

 anterTo and poS enor surfaces; from above, twice as broad as long; peduncle 

 ::S;L long as the node. Postpetiole m profile longer than high anterior 

 surface short and flat, dorsal and posterior surfaces convex f-^/^^ove 

 one and one third times as broad as long, broadest in front of middle, with 

 narrowlv rounded sides. Legs rather stout- 



Shining. Mandibles sparsely punctate. Head rugose and carinate. The 

 -arinae between antennal scrobes subparallel, on vertex more irregu ar and 

 becomLg somewhat reticulate. Those in scrobes more ^'^^^^^^^^^^l^^ 

 obUque. Promesonotum with coarse punctm-es, which are widely separated 

 L f?ont verv sparse on disc and coarser, becoming confluent Posteriorb^ 

 Pleurae 'coarsely punctate, except the metapleurae which are smooth and very 

 shining below, with a margin of coarse punctures above. Base and de Jmty 

 of ep^'otum smooth and very shining except for a deUcate t-nsverse car^u^a 

 between the two surfaces,. Anterior face of petiolar node and peduncle 

 smooth and verv shining; rest of petiole and the postpetiole coarsely punctate. 

 Gaster legs and antennae minutely punctulate and shining. 



Head and body, excepting epinotum (which is glabrous), anterior surface of 



