NY.MPHALINAE: THE GENUS SPEYERIA. 529 



Hind willies very strongly and roundly shouldered next the base, beyond Avhich it is 

 slightly (?) or considerably (J) convex, the outer angle broadly rounded, outer mar- 

 gin regularly and fully rounded, very slightly full at tlie upper subcostal nervule (^) 

 or very fully rounded, prominent, and roundly angulated at the ui)i)er median nervule 

 (?); inner margin broadly and abruptly expanded next the base, beyond straight 

 nearly to the tip of the internal nervure, beyond excised and slightly and roundly 

 emarginate, the angle rounded. Precostal nervure curved strongly outward; first 

 subcostal nervule midway ( c? ) or two-thirds the distance (?) from the divarication 

 of the costal and subcostal nervures to tlie origin of the second subcostal nervule; 

 cell closed. 



Androconia ribbon-shaped, equal and slender, about twenty times longer than l)road, 

 the basal portion black, the rest pellucid, terminating in a lancet-shaped fringed tip. 



Forelegs small, cylindrical, either clothed like the other legs ( 9), or furnished also 

 with a very few short hairs ou either side not projecting greatly ($); tibia scarcely 

 more than one-third as long as the hind tibia, tlie tarsi a little shorter than the tibia ; 

 tarsi composed either of a single undivided joint with a bluntly conical apex ($), or 

 of five joints, visible without denudation, of which the first forms fully three-fifths 

 of the whole tarsus, the second nearly half of the remainder, while the fourth is 

 quite small and the fifth minute, each of the joints excepting the last furnished at tip, 

 beneath, with a pair of short rather stout spurs, the field in which they occur naked; 

 all the joints are also furnished on eitlier side, beneath, with a row of vei-y minute 

 spines easily overlooked ($). Middle tibiae five-sixths the length of the hind tibiae, 

 furnished on either side beneath Avith a row of pretty frequent, very long and slender, 

 scarcely tapering, slightly spreading spines, tlie terminal ones developed to very long 

 and very slender, scarcely tapering spurs ; the tibiae are also furnished above and on 

 the inner side witli rather numerous short and slender, nearly recumbent spines, 

 irregularly disposed. Tarsi beneath with four very regular rows of frequent, short 

 and rather stout, slightly curving spines, the terminal ones of each joint longer than the 

 rest; above similar spines are profusely distributed on all the joints, scarcely disposed 

 in vague longitudinal rows. Claws long, rather stout, strongly curved at base, beyond 

 nearly straight and equal, the apical third falcate and tapering to a pointed tip; 

 paronychia wanting ; pulvillus minute. 



Upper organ of male pretty stout, the centrum globose, arched, the hook large, 

 strongly compressed, longer than the centrum, a little curved and directed somewhat 

 doAVuward, the tip minutely hooked; clasps very large, broad and long, more than 

 twice as long as broad, gently curved in either direction, the upper process arising 

 near the middle of the upper border, many times longer than broad, the basal half 

 nearly equal, beyond greatly tapering ; main blade expanding roundly at tip and beyond 

 the middle of the upper border, and especially at the upper hinder angle, where a 

 small process is directed upward and a little forward and inward. 



Egg. Very short sugar-loaf shaped, scarcely taller than broad; the base a little 

 convex, the sides rounded, swollen a little just above the base, tapering considerably 

 on the upper half , the summit not very small; furnished with a moderate number of 

 heavy, prominent, nearly straight, longitudinal ribs, sharply defined, running from 

 the base to the very summit, nearly as far as the micropyle ; in the narrowing upper 

 half of the egg some of the ribs die out, either by sending diagonal oflshoots to the 

 neighboring ribs, or by uniting with a neighbor to form a single rib. Surface between 

 the ribs broken up by very distinct, raised cross lines, which traverse also the ribs, nearly 

 as prominent as the ribs throughout, breaking up the whole surface of the egg into 

 pretty deep subquadrangular pits, excepting a central circular space at the bottom of 

 which the micropyle is situated. This is formed of a minute central circle around 

 which radiates a single row of broad lozenge or kite-shaped cells, enclosing between 

 their extremities other larger pentagonal cells. 



Caterpillar at birth. So far as the arrangement of hairs is concerned, this genus 

 does not appear to dirter from Argynnis, but I failed to make the proper comparative 

 studies when specimens of each were in my hands. 



67 



