BEUTENMULLER, MONOGRAPH OF THE SESIID^E. 241 



widest below ; pale brown, almost luteous above, mouth nearly black. Crochets of abdominal feet 

 9 to 13 in a row, in a rather wide ellipse. Cervical shield cut by a strong line at the angles, broadly 

 brown, the shield itself nearly colorless." — (Dyar, MS.) 



Alcathoe caudata var. walkeri Neum. 



Plate XXXIII, Fig. ii, Male. 



Alcathoe caudatum var. walkeri Neumoegen, Ent. News, Vol. V, 1894, p. 331 ; Beutenmuller, 

 Bull. Am. Mus. Nat. Hist. Vol. VIII, 1896, p. 117. 



Male. — Head, body, anal tail-like appendage entirely black and not orange. Legs also black 

 with the tibiae orange. Antennae black above, underside and tip dull orange. Wings like the type 

 form. 



Habitat. — New York. (Undoubtedly has the same range of distribution as the type form.) 

 Type : Male. Coll. B. Neumoegen, Brooklyn Inst. Arts and Sci. 



The male moth is remarkable for possessing an orange anal appendage, 

 about as long as the abdomen. In the larval stage the species lives in the crown 

 of the roots and larger root branches of the virgin's-bower {Clematis virgin- 

 iana and C. vitalbd). (Plate XXXVI, Fig. 4.) It undoubtedly also infests other 

 species of plants belonging to the genus Clematis. As a rule, several larvae are 

 found in a single plant and very often bore out the entire crown of the root, 

 causing an apparent lack of vigor of this usually rampant growing plant. The 

 larvae hibernate in various stages of growth and when fully developed form their 

 cocoons in the burrows. The cocoon is composed of silk mixed with small par- 

 ticles of wood or dirt. The moths emerge from about the middle of June until 

 about the middle of August, thus accounting for the various sizes of larvae found 

 in the spring of the following year. In Florida the moth emerges in April and 

 May. 



Alcathoe korites (Bruce). 



Sannina korites Druce, Biol. Cent.-Am. Vol. I, Het. 1884, p. 34, plate v, fig. 22. 



Male.— Head black, palpi orange red below. Antennae orange with more or less black scales 

 on the stalk. Thorax and abdomen black with a bluish reflection, few red scales on the edge of 

 the patagia and centre of the thoracic disc. Anal tufts and tail-like appendage black. Legs black. 

 Fore wings opaque, orange, with the costa, submedian, and median veins lined with black to be- 

 yond the cell. Fringes brown. Hind wings orange with a round hyaline patch at the anal margin, 

 veins partly black. Undersides of wings similar to the above, but lack the black lines on the veins! 



Female.— Similar to the male, but wants the anal tail-like appendage, and the red on the 

 thoracic disc is less pronounced. 



Expanse : 25-28 mm. 



Habitat. — Durango, Colorado, Guatemala, Costa Rica. 



Types : Male and female. Coll. U. S. Nat. Mus. 



The larvae live in the roots of Clematis ligiistrifolia. The moth has all the 

 wings opaque, with a small transparent spot near the anal margin of the hind 

 wings. 



