1919] Wheeler: The Genus Metapone 187 



lum broadly elliptical, longer than broad. Petiole from above a little 

 longer than broad, broader behind than in front, marginate on all sides, 

 with straight anterior and lateral borders, the posterior border deeply 

 and somewhat angularly excised; in profile anvil-shaped, fully one and 

 one-half times as high as long, its ventral surface with two large blunt 

 angular projections. Postpetiole transversely elli]Dtical, nearly twice 

 as broad as long, ventrally with a blunt projection in front and a small 

 tooth behind. Gaster small, suboblong. Legs short, but the femora 

 much narrower than in the other species. Wings rather short, the 

 radial cell narrowly open at the tip, the radial and cubital veins fused 

 for a short distance beyond the apex of the cubital cell. 



Extremely smooth and shining throughout, with sparse, very incon- 

 sj^icuous, piligerous punctures on the dorsal surface; posterior portion 

 of antennal scrobes densely, longitudinally striate. 



Hairs whitish, short, sparse, erect, nearly lacking on the pleura?, 

 most conspicuous on the gaster and legs. 



Black; mandibles tinged with red; antenna?, fore legs, tibia, tarsi, 

 tips and bases of middle and hind tibias reddish castaneous. Wings 

 feebly infuscated, especially along the anteroapical margin; veins 

 resin-colored; pterostigma dark brown. 



Type-locality: Mt. Banahao, Luzon Island, Philippines 

 (Prof. C. F. Baker). 



This species differs from all the others in its highly polished, 

 non-striate head and thorax, dark color, more slender legs, 

 smaller size, etc. In my original description and figure the 

 radial cell of the fore wing is represented as closed at the tip. 

 It is really narrowly open. I have corrected the error in the 

 figure as here reproduced. 



6. Metapone tillyardi sp. nov. 

 (Fig. 6.) 



Worker. Length 5.5-6 mm. 



Head subrectangular, about one and one-fourth times as long as 

 broad, a little broader behind than in front, with straight sides and ver>' 

 feebly concave posterior border. Eyes very small and indistinct, 

 flat, at the lower posterior border of the scrobes. Clypeus rectangular, 

 evenly convex anteroposteriorly, continuing the feeble convexity of 

 the head, a little narrower in front than behind, with straight sides, 

 separated behind from the head by a distinct suture, its anterior border 

 scarcely produced as a lobe, bluntly bi dentate in the middle. Each side 

 of the clypeus overarches a cavity confluent with the scrobe and becomes 

 continuous with the frontal carina which as in the other species extends 

 to about the posterior fourth of the head. There is a distinct impressed 

 line representing the frontal groove and extending to the posterior fifth 

 of the head. Mandibles stout, their external borders rather straight, 

 the apical border oblique, with five teeth, those at the apex largest, 



