140 bulletin: miseum of comfauative zoology. 



248. Atta penetrans Smith. 



Atta penetratis Smith, Journ. Proc. Linn. soc. London. Zool., 1857, 2, p. 77, 9 

 Aphaetwgastcr penetrans Dalla Torre, Cat. Hymcnop., 1893, 7, p. 104. 



Tppr-hcalifjf: Sarawak, Borneo (A. R. Wallace). 



249. Atta cingulata Smith. 



Alia cingulata Smith, Journ. Proc. Linn. sop. London. Zool., 1857, 2, p. 77, ^ 

 A phaenogaj^ter cingulata Dalhi Torre, Cat. Hymenop., 1893, 7, p. 102. 



Type-locality: Sarawak, Borneo (A. R. Wallace). 



POSTSCRIPT. 



A series of specimens, which Prof. C. F. Baker of Manila, P. I. 

 collected at Sandakan, Borneo and sent me too late to be included 

 in the foregoing revision, comprises several interesting and four new 

 species. 



L Cerapachys antennatus Smith. (Ante p. 45). 



Male. Length about 7 mm. 



Long and slender. Head, including the eyes, as broad as long, the eyes 

 large, fully f as long as the sides of the head and situated a little in front of its 

 middle. Mandibles shaped as in the worker, their apical borders well-de- 

 veloped and finely denticulate. Clypeus indistinctly carinate behind, its 

 anterior border broadly rounded and entire. Antennae long and stout, scapes 

 somewhat longer than the three basal funicular joints together; first funicular 

 joint as long as broad, the second broader than long, the remaining joints 

 longer than broad, gradually increasing in length to the tip. Thorax through 

 the wing-insertions as broad as the head through the eyes, mesonotum feebly 

 convex, with pronounced Mayrian furrows. Epinotum in profile angular, 

 with subequal base and declivity, the latter flat, seen from behind subcircular, 

 strongly marginate both above and on the sides. Petiole subcylindrical. If 

 times as long as broad, sharply truncated and marginate in front. Post- 

 petiole broader than the petiole, broader behind than in front, also If times 

 as long as broad, with evenly convex dorsal, lateral, and ventral surfaces. 



