204 THE CANADIAN ENTOMOLOGIST. 



wide, nearly trapezoidal, a little shorter than the second ; ocelli very 

 large, the laterals close to the eye margin . . . Magrettina, Ashmead. 



(Type Meria nocturna, Morowitz.) 



7. Front wings with three cubital cells 8. 



Front wings with two cubital cells 9. 



8. Second cubital cell receiving both recurrent nervures ; the third cubital 



quadrangular Chyphotes, Blake. 



9. Two recurrent nervures, the second cubital cell receiving both 



recurrent nervures Chyphotes, Blake. 



Only one recurrent nervure received by the second cubital cell, the 

 second recurrent nervure always wholly absent. .Typhoctes, Ashm. 



Subfamily III. — Apterogyninae. 



1899. Apterogyninae, Tribu II., Andre'; Spec, des Hym., d'Eur. et 

 d'Algerie, Tome 8, pp. 57 and 65. 



This group was first recognized by Mr. Ernest Andre. It is a singular 

 group, of small extent, falling naturally in the family Myrtnosidce, and not 

 in the family Muti/lide, where Andre' placed it. Only about a dozen 

 species are known, and none have yet been found in America, although 

 species are found in Europe, Africa and Asia. The group should, how- 

 ever, occur in South America, and probably has representatives there still 

 undiscovered. 



In having a strong constriction between the second and third 

 abdominal segments the species resemble certain ants in the family 

 Poneriihe, and particularly those in the subfamily Pseiidomyrmince, the 

 genus Myrinosida, Smith, being strikingly similar to a male ant of this 

 subfamily. I know it, however, only from the description and figure. 

 Smith placed it in the family Mietillidce, but if it is a parasitic wasp and 

 not an ant, then, on account of its abdominal peculiarities, it belongs here. 

 Smith says nothing about the genital armature. 



Table of Genera. 



Males I. 



Females 2. 



I. Front wings with a stigma, a marginal cell, two cubital cells and one 

 discoidal cell ; head large, obtrapezoidal ; pronotum short trans- 

 verse ; hypopygium (?) unarmed (Tribe I., Myrmosidini), (Singa- 

 pore) Myrmosida, Smith. 



(Type M. paradoxa, Smith.) 



Front wings without a stigma or a marginal cell, and usually without 



a cubital cell ; one small discoidal cell ; pronotum not short, 



