Chamberlin: Henicopidae of America north of Mexico. 



PLATE 4. 



BUETHOBIUS OABITUS Chamberlin. 



Fig. 1. Head, ventral aspect, showing organ of Tomosvary. 

 Fig. 2. Distal joints of palpus of second maxilla. 



BUETHOBIUS CONIUGANS Chamberlin. 



Fig. 3. Ventral view of posterior region of body of male, showing gonopods, 

 etc. 



ZYGETHOBIUS SOKARIENUS Chamberlin. 



Fig. 4. Claw of female gonopods, dorsal aspect. 



Fig. 5. Head, dorsal aspect. 



Fig. 6. Prosternum and prehensors. 



Fig. 7. Anal leg. 



Fig. 8. Leg of fifth pair, cephalic aspect. 



ZYGETHOBIUS PONTIS Chamberlin. 

 Fig. 9. Anal leg. 



