MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 31 



(interior wiugs with a complete marginal cell. 

 Antennas 13-jointed. 



With 2 iliscoidal cells Eupsenella Westw. 



With 1 (liscoitlal cell Siekola Cameron 



5. Mesouotal Inrrows distinct. 



Anteume 13-jointed; niaxilhuy pali>i (i-joiuted; labials 3-jointed; fore femora 

 much swollen. 

 Scntellnm with a transverse grooved line iit base. 



Maxilla trilobed at apex Calyoza Westw. 



Maxilla bilobed at apex Epykis Westw. 



Scutellum with 2 fovea> at base Mesitius Spinola 



Mesonotal furrows wanting or indistinct. 



Antenn;e 13-jointed; fore femora much swollen. 



Scutellum with a transverse grooved line at base (Epyris) 



Scutellum with 2 fovea', at base (Mesitius) 



Antenme 12-jointed Anoxus Thorns. 



G. Antenme 12-jointed Pekisemus Forster 



Antenme 13-joiuted GONiozus Forster 



:males. 



1. Anterior femora much swollen -- 2 



Anterior femora not swollen; anteifor wing with 1 or 2 discoidal cells, usually- 

 open. 



Mesonotal furrows distinct, usually 4; antenna' 13-joiiite<l ; no parastigma. 

 Mandibles 4 or 5 dentate; maxillary palpi 6-jointed. 

 Abdominal segment 2 without umbilicate tubercles. 



First discoidal cell distinct ; stigma large Pkistocera King 



First discoidal cell indistinctly defined, always open ; stigma small, 



I .SOUK a c H I u M Forster 

 Mandibles 3-dentate; maxillary pnli)i 4-jointcd. 

 Abdominal segment 2 with 2 umbilicate tul>ercles, 



DissoMPHAi.rs Ashm. gen. nov. 



2. Anterior wiugs with a distinct marginal cell, the stigmal nervure always long.. 4 

 Anterior wings without a marginal cell, the maginal and stigmal nervures want- 

 ing, or very short. 



Anterior wings with a short linear marginal nervure and a short radius 3 



Anterior wings without marginal and stigmal nervures. 

 Anteuuse 13-jointed. 



With 2 basal cells Scleroderma Latr. 



With 1 basal cell Aielicoi-terus Forster 



Antenn;c 12-jointed Cephalc )N0mia Westw. 



3. Antenn;e 13-jointed L/ELU'S Ashm. gen. nov. 



Antennit) 12-jointed I5ethylus Latr. 



4. Anterior Aving with an incomplete marginal cell, the stigmal vein long 5 



Anterior wing with a complete nuirginal cell; antenu:e 13-jointed. 



With 2 discoidal cells Eupsenella Westw. 



With 1 discoidal cell - - Sierola Cameron 



5. Basal nervure with a branch direct backwards, often fonuing a closed cell; a 



parastigma 6 



Basal nervure without a branch directed backward; no parastigma. 

 Mesouotal furrows distinct. 



Antenna" 13-jointed, ramose Calyoza Westw. 



Antenna^ 13-jointed, simple, filiform. 



Scutellum with a transverse fovea, at base; maxilla terminating in two 



lobes Epyp.ls Westw. 



Scutellum with 2 fovea' at base; maxilla terminating in 3 lobes, 



Mesitius Spinola 



