CLEAR-WING MOTHS OF FAMILY AEGERIIDAE 155 



captures with the United States National Museum, the Chicago Natural 

 History Museum, and other institutions. All specimens examined are 

 uniform in appearance and were collected during August. It is of inter- 

 est to mention the very similar color variety of the poplar borer, Paran- 

 threne dollii jasciventris, apparently also restricted to the same habitat. 

 The dates of capture of the form huron are all during August.'"* 



VITACEA CUPRESSI (Hy. Edwards) 



Sciapteron cupressi Hy. Edwards, Papilio, vol. 1, p. 183, 1881. — Beutenmuller, 



Bull. Amer. Mus. Nat. Hist., vol. 8, p. 121, 1896. 

 Memythnis cupressi Beutenmuller, Mem. Amer. ]\Ius. Nat. Hist., vol. 1, pt. 6, 



p. 249, pi. 30, fig. 2 (male), 1901. 

 Paranthrene cupressi McDunnough, Check list of the Lepidoptera of Canada and 



the United States of America, pt. 2, No. 8795, 1939. 



Male. — Antennae orange-brown, touched with black above. Labial palpi 

 yellow, deep orange at bases. Head with vertex, face, and occipital fringe 

 orange-brown. Collar deep yellow, orange at the sides. Thorax deep 

 brown ; tegulae marked with yellow on posterior half ; a transverse, up- 

 ward curved yellow band and a lateral tuft, yellow and orange mixed, 

 on metathorax ; shoulders to wing base chestnut-red. Abdomen with 

 segment 1 black ; segment 2 black and brown and posterior edge black ; 

 segments 3, 4, 5, 6, and 7 straw-colored, with paler annulations at posterior 

 edges ; anal tuft with orange-brown pencils. Legs yellow and orange, 

 femora shaded with black. Forewing opaque, purplish brown, yellow 

 and orange at the base and streaked with yellow and orange to and 

 beyond the indistinct discal mark ; underside shaded with golden yellow, 

 darkening outward. Hindwing transparent, veins purplish brown, vein 

 Ic thickened with scales, discal mark prominent, margin and fringe 

 violet-brown with an orange line along the inner margin to the angle. 

 Underside strongly shaded with deep yellow. 



Female. — Allotype tawnier in color than the male type ; antennae simple, 

 abdomen without anal pencils. 



Expanse: Male (type) 35 mm., female (allotype) 30 mm. 



Distribution. — Colorado ; Utah ; Arizona ; Long Island, N. Y. 



Type. — Male. In ihe American Museum of Natural History. Female 

 allotype in United States National Museum. 



Remarks. — The statement by BeutenmiJUer regarding cupressi, "closely 

 allied to Memythrus robiniae," should be corrected to read, "closely re- 

 sembling robiniae," for the two species are not related biologically, 

 robiniae being a borer in willow and poplar and cupressi a root borer 

 in grape. The males of cupressi are distinguished by having four anal 

 pencils, not found in robiniae, and both sexes have vein Ic of the hind- 

 wing twice as broadly scaled as it is in robiniae. These structures are 



2 The manuscriDt reads "August." but the type and paratype are labeled, respectively, "VII- 

 20-20" and "VII-11-14." These are the only specimens of huron in the National Museum, 

 and if they are correctly labeled the month should be July rather than August. — C. H. 



