MONOGRAPH OF THE NORTH AMERICAN PROCTOTROPIDiE. 73 



Mandibles oblong', truncate at tips, with 4 to 5 minute teetli. ♦ 



Thorax as in Peri seniles. 



Front wings as in Periscmus, except that sometimes the backward- 

 directed branch of the basal nervure is often bent backwards and 

 joins the basal nervure near its origin, forming? a small triangular 

 closed discoidal cell (= PanisicroJa Cameron). 



Abdomen in 9 pointed ovate or long- conical, in $ oblong-oval and 

 more depressed. 



Legs stout, the femora very nnich swollen. 



Distinguished from Pcrisemus by having 13, not 12-jointe(l antennae. 

 Parasierola Cameron is apparently only a section of this genus, having 

 the backward directed branch of the basal nervure a little more elongated 

 and forming a distinct cellule; otherwise it is identical, and is here 

 conjoined to Goniozus. 



TABLE OF SPECIES. 



FEMALES. * 



Species with a small triangular discoidal cell. 



Coxa' and femora black; anterior tibia' and all tarsi yellow.. .G. cellularis Say. 

 Species without a closed discoidal cell. 



Head unusually large 2 



Head normal. 

 Backward-directed branch of the basal nervure as long as the first branch 

 of the basal nervure; legs black. 

 Anterior tibiic and all tarsi yellowish. 



^ Wings subhyaline G. foveolatus Ashm. 



All tibia' and tarsi yellowish ; 9 with middle and hind tibiie dusky. 



Wings clear hyaline G. tlatynot.e, sp. nov. 



Backward-directed branch of the basal nervure only oae-third the length of 

 the first branch of the basal nervure. 

 Abdomen very long and cylindrical, pointed at tip, much longer than the 

 head and thorax united. 



Wings subfuscous G. politus, sp. nov. 



Abdomen very little longer than the thorax, ovate. 



Legs brown, the tarsi pale G. columbianus, sp. nov. 



Abdomen not longer than the head and thorax united. 



All legs, including coxa;, yellow G. HuBBAiimi How. 



2. Legs piceous, tips of tibiie and tarsi pale. 



Wings hyaline G. megacepiialus, sp. nov. 



MALES. 



Wings without a discoidal cellule. 



Legs honey-yellow; wings hyaline G. Hubbardii How. 



Legs brownish or piceous, the coxic black. 

 Wings fuscous or subfuscous. 

 Anterior tibite, trochanters and all tai'si brownish-yellow. 



G. foveolatus Ashm. 



All tibia? and tarsi honey-yellow G. columbianus 



Wings hyaline. 



All tibiiTp and tarsi browuisli- yellow G. platvnot.e 



Wings with a discoidal cellule. 



Legs piceous, the tibia' and tarsi jialo G. cellulap.is Say. 



