Monograph of the bombycine moths of North America, including their transformations and origin of the larval markings and armature . illie, as well as the narrower clypeal region, and the lack ofa cocoon or case-opener. By an examination of the figures it will be seen thatthe outer division of the eyepiece varies much iu is due to the varying width of the male auteunie,which, when wide, as in Pinara (Entometa), ]\Ietrua, Tliy-lidopteryx, and Iysche overlap and nearly conceal it,while it is entirely hidden in Platceceticus. On the otherhand, in male ])ui)a of llepialus and Oneojiera, w


Monograph of the bombycine moths of North America, including their transformations and origin of the larval markings and armature . illie, as well as the narrower clypeal region, and the lack ofa cocoon or case-opener. By an examination of the figures it will be seen thatthe outer division of the eyepiece varies much iu is due to the varying width of the male auteunie,which, when wide, as in Pinara (Entometa), ]\Ietrua, Tliy-lidopteryx, and Iysche overlap and nearly conceal it,while it is entirely hidden in Platceceticus. On the otherhand, in male ])ui)a of llepialus and Oneojiera, where theantenna are small, narrow, and not pectinated, thesepieces are large. The end of the body has no cremaster,but, what is unique, a hook arising from each vestigialanal leg. Finally,itwi]lbereaddy seen that from an examinationof the pui)a the views of S])eyer, of Chapman, and of Comstock, as to the position of the Isychida;.is fully confirmed, while I sliould go a little fnither and i)lace them still nearer the IIepialid; are, however, still more modified than this last-named giou]), since the females are wingless.


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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin