258 HYMENOPTEKA. 



Antennae as long as the body ; the scape obscure white, marked with black in the 

 middle above ; flagellum black, broadly white in the centre. Head minutely punctured ; 

 the face obscure reddish, more or less tinged with white ; the rest of the head white, 

 except the centre of the vertex and the posterior region broadly in the middle. Thorax 

 shining, almost impunctate. Metathorax at the sides and behind the upper transverse 

 keel rugose-striate ; the base impunctate, shining, the keel joined to the base by two 

 short carina?, which form a narrow area; lower keel almost obsolete; tubercles broad. 

 Mesonotum black, with two white lines on each side at the base of the middle lobe and 

 two larger ones on the lateral lobes, bordering the middle lobe at the apex. Scutellum 

 white; the rest of the thorax pallid testaceous, more or less suffused with white. 

 Abdomen finely and closely punctured, the apical segments slightly bordered with 

 white ; petiole shining, impunctate. Legs testaceous ; the anterior and hind tarsi 

 whitish or whitish yellow; hind coxae finely punctured. Areolet higher than long, 

 angled on the lower side ; the outer nervure pretty distinct. 



23. Hemiteles servilis. 



Hemiteles servilis, Cresson, Proc. Acad. Phil. 1873, p. 176 ( $ ) 1 . 

 JJab. Mexico, Cordova 1 (Sumichrast). 



2. Thorax entirety ferruginous. (Species 24 to 27.) 

 a. HeadM&cfa orbits white. (Species 24 and 25.) 



24. Hemiteles ornaticeps. (Tab. X. fig. 24.) 



Ferrugineus ; antennis (annulo excepto) nigris ; annulo flagello antennarum, orbitis, clypeo, tarsisque postiois 



medio lsete, albis ; alis hyalinis, stigmate nigro. $ . 

 Long. 11 millim. ; terebra 3 millim. 



Hah. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 



Antennae stout, bare, thickened towards the apex; the white ring broad. Head 

 finely rugose; the clypeus shining, impunctate; face semibuccate ; the orbits white, 

 except in the centre behind ; there is a triangular white mark below the antennae, and 

 the clypeus may be more or less white, or coloured like the rest of the head. Meso- 

 notum shining, aciculate, the three lobes well developed and with distinct sutures; 

 pleurae longitudinally punctured, opaque. Scutellum smooth, shining, almost impunc- 

 tate ; the sides carinate at the base ; flat, much narrowed towards the apex. Meta- 

 thorax rugose-striate ; the two transverse keels distinct, the lower keel forming a 

 semicircular curve in the middle; tubercles longer than broad, rather blunt at the 

 apex. Petiole aciculate, the sides keeled ; postpetiole shining, impunctate ; the rest of 

 the abdomen semiopaque, aciculate. Legs stout; hind coxae finely punctured; hind 

 tarsi white, black at the base and apex. Areolet higher than long, angled on the 

 lower side. 



