N'ovemher — December 1890.] 



PSYCHE. 



481 



as transverse bars at right angles to the cos- 

 tal margin. Near the base of this wing be' 

 low the ceil there is a dark fuliginous mark. 

 The spots upon the secondaries are crowded 

 together toward the base and again toward 

 the outer margin, leaving a clear discal band 

 of the ground color visible. Three small 

 round spots near the base and a quadrate bar 

 in the outer series are conspicuous because 

 showing no silvery pupillation and being 

 darker in color than the rest. Anal lobe 

 black. Palpi, legs and body concolorous- 

 Expanse 27 mm. 



Type Z in collection of the authoi-. 



36. A. ARGYROCYCLUS, Sp. nov. 



$. Allied to A. orcas, Drury, but differing 

 widely in important particulars from the fe- 

 male of that species. 



Upperside : — The prevalent color is dark 

 greenish brown glossing with blue in certain 



lights. There is a large white spot at the 

 end of the cell of the primaries followed by a 

 subapical series of very small and obscure 

 spots. Underside : — The ground color is 

 dark orange fading upon the inner margin 

 of the primaries into pale testaceous. The 

 fringes are black checked with white at the 

 tips of the nervures. The anal lobe is black. 

 The silvery spots adorning the wings are 

 relatively large and ringed with dark maroon. 

 Instead of the one long spot which stands 

 upon the primaries of A. orcas the fourth 

 from the base, there are in A. argyrocyclus 

 three spots grouped triangularly. Instead 

 of the nine silver spots which appear upon 

 the secondaries of A. orcas there are in A. 

 argyrocyclus sixteen spots and all lying 

 within the subinarginal band of dark maroon 

 which in both species appears upon the sec- 

 ondaries. Expanse of wings 40 mm. 



Type in collection of author. 

 Pittsburg, Pa., 10 Nov. i8go. 



SOME GENERA OF 



OEDIPODIDAE RESCQED FROM THE 

 TRYXALIDAE. 



BY SAMUEL HUBBARD SCUDDER, CAMBRIDGE, MASS. 



In his Prodromus Oedipodiorum, 

 Saussure constructs a table for the sep- 

 aration of the genera of this family, in 

 which, when he has reached the "stirps 

 Oedipoda," afterwards termed by him 

 Oedipodites, he first separates from the 

 remainder of the stirps the new genus 

 Daemonea., an extraordinary form from 

 Peru, known to him apparently only by 

 a single imperfect and immature speci- 

 men in Brunner's collection. This gen- 

 us he found to differ from all others in 

 the forward extension of the vertex, 

 "faciem adumbrans," the stout form of 



the hind femora with slight carinae, the 

 great length of the hind tarsi which are 

 nearly two thirds as long as the hind 

 tibiae, and the peculiar concave struc- 

 ture of the dorsal surface of the prono- 

 tuin. 



In a recent study of some American 

 species of acridiodea I have been great- 

 ly puzzled by a number of forms 

 which seemed to lie on the border land 

 between the oedipodidae and the tryx- 

 alidae. One by one they have been 

 removed in my collection from one 

 family and the other without finding a 



