Hymenoptera from the River OgovS. 26-5 



(Ecophylla virescens. 

 Formica virescens, Fabr. Sjst. Ent. p. 392. n. 9 (1775). 



These green ants are found throughout the tropics of the 

 Old World, and form their nests of leaves on trees. 



Subfamily PonerinjE. 

 Anomura moles ta. 



Ammura molesta, Gerst, Mon. Akad. Wiss. Berl. 185S, p. 282 ; Petera'a 

 Reise Mossamb., Zool. v. p. 562, pi. xii. tig. 2 (1862). 



A species originally described from Mozambique. 



Subsection Fossohes. 

 Pelopceus spirifex. 

 Sphe.v spirifex, Linn. Sjst. Nat. (ed. x.) i. p. 570. n. 8 (1758). 

 A widely distributed species in South Europe and Africa. 



Subsection Diploptera. 



Family EumenidaB, 



Eumenes decipiens, sp. n. (PL XIT. fig. 1.) 



Eitmenes mehmosoma, Smith, MS., nee Sauss. 



Long. Corp. 15-17 millim. ; exp. al. 25-27 millim. 



Head black above, the points of the angles within the eyes 

 yellowish ; antennas ferruginous, black above ; face ferru- 

 ginous, very long, beak-like, sometimes yellow, only the 

 mandibles and a space at the base of the clypeus remaining 

 ferruginous. Prothorax red, with a large triangular black 

 spot nearly filling up the hinder angles on each side ; meso- 

 thorax black; tegulaj large, black, bordered outside with 

 reddish ; scutellum black, a short yellow dash running from 

 its extremity between the base of the wings ; postscutellum 

 black, with a yellow dot on each side ; metathorax black, 

 deeply sulcated in the middle, and forming two long triangles, 

 the points reddish, into which runs an oblique lateral yellow 

 line. Pectus black, red towards the sutures. Petiole and 

 abdomen black, shining, and much more finely punctured 

 than the thorax ; petiole rufous beneath and bordered behind 

 above with a pale yellow line. First segmeiit of abdomen 

 bordered behind above with a yellow line, widely interrupted 

 in the middle. Legs rufous, front (and sometimes middle) 

 tibiae lined with yellowish ; tarsi clothed with greyish pubes- 



Ann. (fe Mag. N. Hist. Ser. 6. Vol xviii. 18 



