112 



Psych e 



[June 



Formicin.t:. 



19. Plagiolepis longipes Jerd. 5 — Several specimens from 

 Canton. 



20. Plagiolepis rothneyi Forel ^ — iSTumerous specimens from 

 Canton. 



21. Paratrechina longicornis Falir. ^ — Numerous specimens 

 from Canton. 



22. Paratrechina {Nylanderia) yerhuryi Forel ? — Numerou.-; 

 specimens from Canton. 



23. Gesomyrmcx liowardi sp. nov. (Fig. 2). 



Fig. 2. Gesmoyrmex howardi sp. nov. a, worker major,- b, head of same, c, bead of 



worker minor. 



Worker major. Length 3 mm. 

 Head, without the mandibles, a little longer than broad, broader 

 behind than in front, with straight, anteriorly angular cheeks, 

 convex and broadly rounded posterior l)order and corners, broadly 

 and arcuately excised occipital 1)order and rather flat dorsal and 

 gular surfaces. Eyes very large, prominent, elliptical, fully 2i/<> 

 times as long as broad,, situated at the middle of the sides of the 

 head. Ocelli minute but distinct. Mandibles rather flat, their 

 external borders straight at the base, convex towards the tips, their 

 apical borders straight with acute, crowded teeth, alternately long 

 and short. Clypeus broader than long, convex but not carinate 

 in the middle, flattened and depressed anteriorly where it projects 

 as a broad, arcuate lobe over the bases of the mandibles. Frontal 



