PLATE II. 



Hind aspect, head of Protoparce Carolina Linn. 



Front aspect, head of Protoparce Carolina Linn. 



Hind aspect, head of Paniphila leonardus Harr. 



Front aspect, middle head of an exotic Hesperid butterfly. 



Front aspect, head of Argynnis cyOch' I'^ibr. 



Hind asi^ect, head of Actias luna Linn. 



Under aspect, middle head of 'Triptogon tnodcsta Harr. 



Under aspect, head of Danais archippus Fabr. 



Hind aspect, head of Danais archippus Fabr. 



Front aspect, head of Danais archippus Fabr. 



Front aspect, head of Ifnnaris thxshc Fal)r. 



Under aspect, middle liead of Catocala sp. 



Front aspect, slightly turned, head of Catocala sp. 



AHHRi:\"I.\ riONS. 



oc, occiput. 



eye, compound eye. 



su\ suture between gena and 



post-gena. 

 J//'", suture between epicranium 



and post-gena. 

 cl, clypeus. 



ep, epicranium. 



/ g, post-gena. 



o /, occipital foramen. 



su' , suture between e])icranium 



and gena. 

 .4.v,'gena. 

 nid, mandible. 

 su, suture between epicranium ll>, labrum. 



and clypeus. //, pilifer. 



///.v. maxilla. ////. labium. 



/ /, labial palpus (basal seg- .;,'■//, gula. 



ment). nix, maxillar proboscis. 



tent, tentorium. >nx h, fixed basal portion of 



>nx p, maxillary palpus. maxilla. 



epx, epipharynx. 



