MONOGRAPH OF THE NOUTH AMERICAN PBOCTOTKYPIDiE. 123 



Winged. 



Mesouutiim with a median impressed Hue. 



Scutellum Hat or snlKonvex, with a marginal freninn Cf.rapiiron Jurine. 



8entellum eonvcx. aeuminate, without a fn-niun APHANOCiMfs Thorns. 



Mesouotuui without a iuiTow (= Syuarsis Fiirst.) Apiianogmis Thonm. 



2. Mesonotum with a median impressed Hue CeuaPHKON. 



SeuteUum Hat or suhconvex with a freuum Cerai'UKox. 



Scutelhim convex, withcmt a freuum APHANcxiMUs. 



Mesonotum without a median furrow Aphanoomi's. 



3. Mesouotuui witli amodian impressed Jine Nekckkaphkon, geu. uov. 



MALES. 



Antenna' 10- jointed 3 



Antenna; 11-jointed. 



Mesonotum without a me<lian impressed line 2 



Mesonotum with a median imi)ressed line. 

 Scutellum <lepressed with a marginal frenum. 



Antenna- simple Ceraphroi^ 



Scutellum convex, acuminate, without a frenum. 



A utenuiu serrate Aphanogmus Thoms. 



2. Scutellum convex, acuuiiuate, without a freuuiu. 



Anteniue serrate AphaNOGMUS Thoms. 



3. Mesonotum witli a median imitressed line. 



Anteunaj fiHform Neoceraphron, gen. nov. 



CERAPHRON Juriue. 



Hypi., p. 303 (1807). 



CaUiceras Nees, Men., Il, p. 280, 18; Thoms. Ofv., 1858, p. 302. 

 Hadroveras Fiirst., Beitr., p. 46 (1841). 

 Ceraphron Fiirst., Hym. Stud., ii, p. 97, 1856. 

 Megaspilidia Ashm., Can. Eut., xx, p. 49 (apterous forms). 



(Type C. siilcattis Jurine.) 



Head transverse, when viewed from in front oblong or oval, convex, 

 impressed above the antenme; ocelli 3, tri tigularly arranged; eyes 

 oval. 



Antenniie inserted just above the clypeus, in 9 10-jointed, subclavate, 

 the scape long, obclavate; in 5 , ll-jointed, filiform, pubescent, or 

 pilose. 



Maxillary palpi 4-.iointed; labial palpi 2-jointed. 



Mandibles bidentate. 



Thor subovoid, the prothorax not visible from above, mesonotum 

 with a ii.i'dian impressed line, rarely entirely wanting, the scutellum 

 elongate, flattened or subcouvex, with a distinct freuum; metathorax 

 shdrt, the angles acute or prominent, and with 1 or 2 teeth at base. 



Front wings pubescent, with a short linear marginal vein and a 

 rather long curved stigmalveiu; apterous individuals of frequent oc- 

 currence. 



Alxlomen subsessile, ovate, ('ompressed beneath, subconvex above 

 and longer than the thorax, the second segment large, striolate at base. 



