280 Annals EntomoJo^ical Society of America \Vo\. XI, 



EXPLANATION OF PLATES. 



Plate XXIV. 



Fig. 1. Alydtts pliito. C'auilo-ventral aspect of female genitalia. >uf>, mesal 



plates; Ip, lateral plates of hypopygium; 6, sixth abdominal segment. 



The lateral plates apparently represent the seventh, and the me.sal 



plates the eighth ventral segment. 

 Alydus pliito. Male genitalia, showing the caudal a.spect of the claspers. 

 Alydits tomentosus. Claspers of male. 

 Alydus euriniis. Female hypopygimn. 

 Alydus eurinus. Claspers of male. 

 Alydus scutellatus. Claspers of male. 

 Alydus conspersus. Female hypopygium. 

 Alydus conspersus. Claspers of male. 

 Alydus pilosulus. Female hypopygium. 

 Alydus pilosulus. Claspers of male. 

 Tollius curtulus. Claspers of male. />/, caudo-lateral portion of 



pygofer. 

 Fig. 12. Tollius selosus. Claspers of male. 



Plate XXV. 



Fig. 13. Stachyocnernus apicalis var. apicalis. 

 Fig. 14. Stachyoc?iemus apicalis var. cinereus. 



