12 PROCEEDINGS OF THE NATIONAL MUSEUM vor.. 71) 



supplement Walker's description: Runs to Ojnus in keys by Szep- 

 ligeti " and Gahan.^^ Head behind margined only laterally; a trans- 

 verse opening between clypeus and mandibles. Mesoscutum polished ; 

 notauli very short, distinct only anteriorly; propodeum polished and 

 provided with a median longitudinal carina; second abscissa of 

 radius much longer than first intercubitus; third abscissa of radius 

 going to extreme wing apex; three cubital cells; recurrent vein enter- 

 ing first cubital cell considerably before first intercubitus. Hypo- 

 pygium rather large; ovipositor sheaths fully as long as the abdomen. 

 Since testacea Walker, the genotype of Psyttalia and the only 

 included species, is preoccupied in Opius^ it becomes necessary to 

 change that specific name upon synonymizing the genus. 



OPIUS WALKERI, new name 



Psyttalia testacea Walker, Ann. Mag. Nat. Hist, ser. 3, vol. 5, p. 311, 1860 (not 

 testaceus Wesmael ) . 



Subfamily ALYSIINAE 



Genus HERATEMIS Walker 



Eeratemis Walker, Ann. Mag. Nat. Hist., ser. 3, vol. 5, p. 310, 1860. (Genotype, 

 Heratemis filosa Walker.) 



This is another of Walker's genera that have apparently remained 

 unrecognized owing to the unsatisfactory original characterization. 

 The following notes, taken from the genotype, are given here in order 

 to supplement the original description and to aid in the recognition 

 of this genus, which appears to be most closely related to Phaeno- 

 mrpa Foerster: Head large, although transverse; temples Avith a 

 weak but distinct posterior tubercle ; antennae exceptionally long and 

 slender; first flagellar segment shorter than the second. Xotauli 

 strongly impressed; middle lobe of scutum prominent; scutellum 

 drawn out into a conspicuous elevated hornlike projection at apex; 

 propodeiun areolatcd; posterior coxae with a blunt tooth beneath at 

 base; radius arising from beyond middle of stigma; radial cell large, 

 extending to extreme apex of wing; three cubital cells; first cubital 

 and first discoidal cells separated ; recurrent vein entering first cubital 

 cell at extreme apex; second abscissa of radius a little longer than 

 first intercubitus; first brachial cell closed, long and narrow; radi- 

 ellan cell very large, much widened apicalh\ Abdomen long and 

 slender. 



Subfamily MACROCENTKINAE 



Genus XIPHOZELE Cameron 



Xiohozcle Cameron, Ent., vol. 39, p. 204, 1906. (Genotype. Xipjiozele compres- 



siventris Cameron.) 

 Cerotopia Enderlein, Archiv. f. Naturg., vol. 84, Abt. A, Heft 11, p. 219, 1920 



(1918). [Genotype, Cerotopia corncimacula Enderlein (nevi^ synonymy).] 



" Genera Insectoium, fasc. 22, p. 159, 1904. 

 ^^2 Pioc. U. S. Nat. Mus., vol. 49, p. 67, 1915. 



