394 



second median venules are wider apart than usual. Hind legs long and 

 slender, the tarsi very long and equaling the tibiae in length, the latter with 

 four large spurs. The species are green, with scalloped or broad, straighl 



lines. 



The long, stout palpi, long hind wings and subfalcate fore wings, and 

 broad, straight, oblique white bands and discal dots, as well as the large size 

 of the species, will enable them to he readily recognized. 



Our (J. iridaria differs greatly in its markings from the European 

 O'. papilionaria ; that species has faint scalloped lines and no discal dots. 



Larva and pupa. — "Caterpillars a little elongated, pubescent, granulated, 

 armed on the hack with rough projections: head small; living on trees. 

 Chrysalides rugose, grayish-brown (grises), contained in thin silken cocoons 

 among leaves." — Guence. 



Geometra iridaria G nonce. Plate 10, tig. 93. 



Gcomelra iridaria Guen., Phal., i, 344, 1857. 



Walk., List Lep. Het. Br. Mus., xxii,508, 1861. 



4 $ and 4 9. — Wings entire ; primaries slightly augulated in the middle. 

 Hind wings rounded, extending farther beyond the tip of the abdomen than in 

 G. papilionaria, while the antennae are less strongly pectinated than in that 

 species. The palpi are stout and bushy; they are brown, white below. 

 Head white, with brown scales in front, sometimes forming a line. Body 

 and wings pea-green. Fore wings white on the costa, with brown scales on 

 the basal half; two broad, white lines of the same width, the outer forming 

 a common, tine, broad, oblique line, sometimes shaded with faint yellowish 

 on the inner side of the common line and the outer side of the inner line. 

 Small black discal dots on both wings; beneath, the dots are much more 

 conspicuous; the lines faintly re-appear beneath. The fore wings are whitish 

 on the hinder (h\^,. Fore legs greenish at the base on the trochantines ; 

 legs white, with souk 1 black scales at the base; femora of all three pairs 

 tipped with brown-black; tibiae brown at end, and tarsi washed in spots 

 with pale brown. Abdomen green above, white below. 



Length of body, <?, 0.42, 9, 0.36; of fore wing, rf, 0.46-0.55, 9, 050; 

 expanse of wings, 1.00-1.55 inches. 



Andover, Mass. (Sanborn); Brooklyn, X. Y. (Graef); Pennsylvania 



(Clemens); Maryland (Glover); Demopolis, "Ala. (Grot e); Lawrence, Fans. 



(Snow); Waco, Texas, May to October (Belfrage) ; Sanzalito, Cal. (Behrens). 



