94 bulletin: museum of comparative zoology. 



Type-locality: Borneo. 



I refer a female specimen from Kuching (John Hewitt) to this 

 species. 



*121. Cataulacus latissimus Emery. 



Cataulacus latissimus Emery, Rev. Suisse zooL, 1893, 1, p. 21,5, S , pi. 8, fig. 10. 



Type-locality: Perak (Bedot and Pictet). 

 Two workers from Kuching (John Hewitt). 



*122. Strumigenys indagatrix, sp. nov. 



Worker. Length 1.7 mm. 



Slender; head flattened, If times as long as broad, with semicircularly 

 excised posterior border, narrowed at the eyes, the portion anterior to the 

 antennal insertions as long as broad; eyes moderately large and convex. 

 Mandibles about half as long as the head, straight, slender, slightly narrowed 

 at their insertions, with straight, parallel borders, a pair of long, acute, subequal 

 apical teeth and a spiniform preapical tooth of the same shape but somewhat 

 shorter. Clypeus as long as broad, flat, with entire anterior border. An- 

 tennae slender; the scapes reaching nearly to the posterior fifth of the head; 

 last funicular joint longer than the remainder of the funiculus; joints 2 and 3 

 subequal, small, not longer than broad, fourth joint a little longer than the 

 first, about twice as long as the second and third together. Thorax narrow, 

 the profile outline of the pronotum feebly convex, rising to the mesonotum, 

 ■which is the highest part of the thorax, and descending gradually to the long 

 epinotum, the base of which is nearly straight in profile and fully If times as 

 long as the declivity. The spines are rather long and slender, but indistinct, 

 as each is embedded in a spongiform plate continued down the side of the 

 declivity. Petiole and postpetiole with large spongiform masses on the sides 

 and ventrally, so that only the dorsal surfaces are exposed. Gaster but little 

 broader than its straight, transverse, anterior border. Legs slender. 



Mandibles, gaster, and dorsal surface of postpetiole smooth and shining; 

 head, thorax, petiole, legs, and antennae opaque, densely and regularly punctate, 

 the head a little more coarsely than the thoracic dorsum, the appendages very 

 finely. Extreme base of gaster longitudinally rugose. 



Hairs yellowish, sparse, rather long, especially at the tip of the gaster, erect 

 or suberect, shorter and blunter on the head, on the cljqieus and anterior 

 border of the scape curved but pointed, nonclavate. Legs with very short, 

 subappressed hairs. 



Yellowish ferruginous; mandibles and legs paler. 



