224 THE CANADIAN ENTOMOLOGIST. 



Front wings with the first and second discoidal cells usually 

 more or less present and complete, or at least indicated by 

 fuscous lines ; apical margin of the last dorsal segment entire, 

 very rarely undulate or more or less angulate 

 laterally Subfamily III. — Hedychrinae. 



Front wings with the first and second discoidal cells wanting, 

 rarely with the second indicated by water lines: apical margin 

 of the last dorsal segment medially excised or truncate — 

 emarginate, rarely entire or subsinuate, scarcely excisely 

 ( Philodetes) Subfamily IV. — Elampinse. 



3. Metathorax unarmed, the hind angles rounded 4. 



Metathorax with the hind angles acute or toothed ; pronotum usually 



longer than wide, narrowed anteriorly, rarely quadrate. 



Pronotum without a transverse furrow anteriorly ; abdomen in 

 $ with 2 or 3 dorsal segments, the apical margin of the 

 last rounded, edentate; claws with one tooth 

 beneath Subfamily V. — Allocoelinse. 



Pronotum with a transverse furrow anteriorly; abdomen in 9 



with 4 dorsal segments, in g with 5 



segments Subfamily VI. — Cleptinse. 



4. Pronotum broad, quadrate or subtrapezoidal, usually as long as the 



mesonotum, rarely a little shorter; abdomen much depressed, the 



known forms with 4 or 5 distinct dorsal 



segments Subfamily VII. — Amiseginse. 



Subfamily I. — Parnopinre. 

 The abnormally lengthened labium and maxillae, as well as the 

 venation of front wings and the peculiarities of the abdomen, render the 

 subfamily easily recognized. 



It is represented at present by a single genus, and all of the species 

 apparently confine their attacks to wasps belonging to the family 

 Bombicidcp.. 



Abdomen in J with 3 segments, in $ with 4 segments, the terminal seg- 

 ment minutely denticulate at apex; postscutellum lamelliform, projecting; 



labium and maxillae abnormally long Parnopes, Latreille. 



(Type Chrysis grandior, Pallas.) 



Subfamily II. — Chrysidinae. 



This is the largest and most extensive group in the family. It is 

 easily recognized by the simple, edentate claws, by the front wings having 



