CM 



unnatural combination to place under a single generic head the genera united 

 by Lcderer, Staudingcr, and others, under Cidaria. 



Zerene catenaria. — In this -species the lateral claspcrs are large and long, 

 oval, obtusely pointed at tip, with the upper edge thickened like the hack of 

 a back-saw. The supra-anal plate is very small, broad, and short; the spine 

 broad at base, short and stout ; the last segment partly covers the armature. 



In Acidalla enucleala the supra-anal plate is small, solid, triangular; the 

 spine large and double; the lateral claspers are very small, full, and rounded, 

 with a deep sinus on the upper edge. There is also a pair of large, solid 

 black chitinous hooks, which I have not noticed in the previously-mentioned 

 genera. 



In Gueneria Jidlculata the last segment entirely covers the armature ; 

 the lateral claspers are very long, membranous, extending far beyond the rest 

 of the armature; the supra-anal plate is very complicated, the end being 

 divided into two rounded, flat concave portions, from beneath which projects 

 the broad, incurved triangular spine. 



In Aplodes mimosaria, the armature is covered as usual; the lateral 

 claspers are very long, subspatulate, the upper edge chitinous, the chitinous 

 portion expanding and bent up at right angles at the end, and ending ia a 

 broad, mucronate point. The supra-anal plate is rather large, scutellate, 

 membranous in the middle, and the spine is very long and slender, with the 

 end blunt. 



In Cymatophora timbrosarta, the supra-anal plate is moderately large, acute, 

 scutellate, ending in a rather short spine ; the lateral claspers are large and 

 long, moderately broad, spatulate, the end curved up a little and meeting its 

 fellow on the median line of the body ; on the inside, at the bend in the outer 

 edge, is a small bunch of short, acute spinulcs. 



In Endropii bilinearia, the lateral claspers arc large, very broad at the 

 base, somewhat upcurved, the end broad subspatulate, a deep sinus on the 

 upper edge, with a long spine projecting inward from the base of the upper 

 edge. The supra-anal plate is small, triangular, depressed. 



In Caberodes metrocamparia, the lateral claspcrs are moderately large, 

 broad at the base, the upper edge straight, the end rounded, the lower edge 

 bent up a little. I.t is unarmed. The supra-anal plate is large, broad, 

 triangular, with the median suture very deep. The spine is large, and 

 reaches as far. as the end of the lateral claspers. 



