421 



Synopsis of the Species. 



A. Hind tarsi longer than the tibiae : 



Pearl-colored, with two rows of black dots T. cognataria. 



B. Tarsi shorter than the tibiae : 



Reddish-brown, densely-speckled with dark scales T. californiaria. 



Clear reddish-brown ; fore wings falcate T.fahalaria. 



Medium-sized ; dull ash-gray ; with three rows of close-set black spots T. anticaria. 



Larger hind tarsi nearly as long as .tibiae; whitish-ash ; with five rows of black 



spots T. cribrataria. 



The largest species ; hind tibia; very long ; tarsi very short, ash-gray T. canaaaria. 



Tephrosia cognataria Packard. Plate 11, fig. 11. 



Anagoga cognataria Hiibu.-Geyer, Exot. Schm., Zutrage, '34, figs. 549, 550, 1825. 



4 c? and 2 ?. — This singular species differs from P. cribrataria in the 

 longer, much slenderer legs, the hind tibiae being very slender, while the 

 tarsi are very long, in fact longer than the tibiae, while in T. cribrataria they 

 are shorter. The antennae are just as in T. cribrataria, the pectinations being 

 long and inclined to be interlocked. It also differs in the want of the usual 

 markings. Body and wings dull pearly-ash. Head whitish on the vertex, 

 and along the upper side of the antennae. In front, brown in both sexes. 

 Fore wings uniformly pearl-ash, usually with no markings except an oblique 

 line of venular dots in the outer third of wing, and a row of minute marginal 

 intervenular dots. Fringe concolorous with the wing. Hind wings v^ith the 

 same markings. Sometimes the four discal small round dots are present. 

 Under side of wings exactly like the upper. Discal dots minute, the row of 

 dots wanting, the marginal row present. A double row of dorsal spots, some- 

 times wanting, sometimes conspicuous. Legs a little paler than the body. 



Length of body, <?, 0.35-0.45, 9, 0.37; of fore wing, S, 0.52-0.60, 9, 

 0.55; expanse of wings, 0.75-1.20 inches. 



Brunswick, Me. (Packard); Maine (or Connecticut?), (S. I. Smith, 

 Mus. Yale College) ; Natick, Mass., May 26 (Stratton) ; Maiden, June 1, 

 Cambridge, Mass., July 30 (II. K. Morrison) ; Philadelphia, Pa. (Ent. Soc). 



This species varies much in size and markings. It is usually pearl-ash, 

 having a lilac tinge, sometimes thickly dusted, and then wanting (lie outer 

 row of dots. In the female, there is ;i very faint shade just beyond the discal 

 dot on both wings. The discal dots are often wanting. In a small individual 

 from Pennsylvania, there are two rows of black dots, the inner just within 



