180 



Annals Entomological Society of America [Vol. XII, 



together one and one-fourth times as long as broad; base of epinotum 

 rather longer than broad, passing through an abrupt curve into the 

 short, subvertical declivity. Petiole subcuboidal, rather flat above, 

 widened behind, a little broader than long, its posterior border above 

 deeply and broadly excised, its anterior and posterior surfaces truncate, 

 the dorsal somewhat thicker than the ventral portion. Anteriorly 

 it has a short peduncle and its ventral surface has in front a large, 

 longitudinal rectangular, translucent lobe, followed by a strong tooth. 

 Postpetiole broader and shorter than the petiole, one and three-fourths 

 times as broad as long, rounded cuboidal, bearing on its ventral side a 

 large tooth, followed by a welt. Gaster oval; sting long and stout. 

 Femora greatly dilated, the posterior pairs scarcely one-third longer 

 than broad; tibiae and metatarsi short and broad. 



Fig. 2. Mefapone greeni Forel. Larva (after Emery), fl, lateral view; b, head of 



same; md, mandible; mx, maxilla. 



Shining; head and thorax regularly and not coarsely longitudinally 

 striated, with scattered, effaced punctures; the remainder of the body 

 smooth, with fine, scattered, piligerous punctures. 



Erect hairs yellowish red, short, very sparse on the body, almost, 

 lacking on the thorax, more abundant on the tibiae and scapes. 

 Pubescence reddish, sparse, very distinct on the gaster and pedicel, 

 but scarce elsewhere. 



Deep brownish red; gaster deep chestnut brown, sometimes blackish, 

 with red tip. Small workers sometimes paler (immature?). 



Female (mature pupa). Length 9.5 mm. 



Eyes very large, occupying nearly one-half the sides of the head, 

 moderately convex. Mesonotum and scutsllum flat, small, together 

 forming scarcely half the thoracic dorsum. In other respects like the 

 worker, but with the head a little longer. Dark brown, nearly black. 



