KI'.I'OKT Ol'' rilE STAT1-: ENTOMOLOGIST IQI/ 79 



(/(/ Circumlili well developed and not conspicuously irregular, the 



loops mostly as long or longer than the diameter of the 



enlargement 



e Claws bent at nearly right angles, basal clasp segment not 



lobed 



/ Ventral plate long, slender, slightly exjianded and 



roundly emarginate apieally, dorsal plate short, 



triangularly emarginate G i a r d o m y i a Felt 



ff Ventral plate long, broad, very deeply and broadly 

 emarginate, the dorsal plate deeply and roundly 



emarginate H y ]) c r d i p 1 o s i s Felt 



ce Claws not bent at right angles 

 / Basal clasp segment lobed 

 g The lobe apical 



h The lobe very long, curved, setose, the 

 terminal clasp segment swollen basally .... 

 Epidiplosis Felt 

 hh The lobe triangular, the terminal clasp seg- 

 ment short, greatly constricted near the 

 middle and enormously swollen and re- 

 curved apieally. ..Metadiplosis Felt 

 gg The lobe basal, triangular, wings usually spotted 

 Lestodiplosis KiefE. 

 // Basal clasp segment not conspicuously lobed 



g Antennal segments plainly trinodose, the dorsal 



plate divided, its lobes orbicular 



Obolodiplosis Felt 

 gg Antennal segments short, thick, the stems trans- 

 verse, the enlargement short, broad, the cir- 

 cumfili fine, rather short, each with numerous, 

 about 20 loops ....Retinodiplosis Kieff . 

 ggg Without the striking characters listed under g 

 and gg 

 h Ventral plate linear, usually rounded api- 

 eally, the dorsal plate much shorter than 

 the ventral plate and with truncate lobes 

 Parallelodiplosis Rubs. 

 hh Ventral plate broad and broadly or triangu- 

 larly emarginate 

 i Ventral plate lobes not linear and parallel 

 j Dorsal plate deeply incised, the lobes 

 narrowly rounded, the terminal 

 clasp segment with a broadly chit- 



inized, serrate margin 



Paradiplosis Felt 

 jj Dorsal plate not incised or very nar- 

 rowly emarginate, terminal clasp 

 segment as long or nearly as long as 

 the basal clasp segment and smooth, 

 the ovipositor moderately long and 

 with lobes I t o n i d a Meign. 



