CLEAR-WING MOTHS OF FAMILY AEGERIIDAE 145 



rings of equal width ; segment 3 pale brown, narrowly edged with yellow, 

 remaining segments entirely pale yellow. Forewing pale, straw colored, 

 touched with red at base, along costa and inner margin. 



Distribution. — Extreme desert regions of southern California. 



Type.— U. S.N. M. No. 56846. From Palm Springs, Calif. 



Described from female type and female paratype from the type locality. 



PARANTHRENE SIMULANS SIMULANS (Grote) 



Plate 27, Figure 163 



Trochiliuni (Sciapteron) simulans Grote, Bull. Brooklyn Ent. Soc, vol. 3, p. 78, 1881 , 



Bull. U. S. Geol. and Geogr. Surv. Terr., vol. 6, p. 257, 1881. 

 Sciapteron simulans Grote, Rep. Ent. Soc. Ontario for 1887, p. 81, 1888.— Beuten- 



MULLER, Bull. Amer. Mus. Nat. Hist., vol. 8, p. 121, 1896; vol. 9, pp. 214, 218, 1897. 

 Paranthrene simulans AIcDunnough, Check list of the Lepidoptera of Canada and 



the United States of America, pt. 2, No. 8798, 1939. 



Male. — Antennae strong, bipectinate, black, brown at apices. Labial 

 palpi rough, yellow, black at bases and on the sides. Head black, eyes 

 margined broadly with yellow in front. Collar yellow behind, black in 

 front. Thorax deep black, a yellow spot on each side immediately below 

 the collar and a yellow spot in front of and another beneath the f orewings ; 

 tegulae prominently striped with yellow on lower half to a black-and- 

 yellow tuft on metathorax, which is marked with yellow transversely. 

 Abdomen yellow ; segment 1 entirely black ; segment 2 black with a short 

 transverse yellow band ; segment 3 slightly yellow on lower edge ; segment 

 4 broadly black dorsally but the yellow band broadening on the sides 

 below ; segments 5, 6, and 7 yellow with a subobsolete row of black spots 

 along the dorsum ; beneath the segtnents more equally banded with yellow 

 and black ; anal tuft short, compact, yellow mixed with black. Coxae 

 yellow, femora black, posterior tibiae yellow, shaded with rust}' and black ; 

 tarsi orange. Forewing with brownish-black scales on and below the 

 costa and on inner margin, pellucid at internal angle and with pellucid 

 streaks to wing base ; discal mark indicated by denser, brownish scales. 

 Hindwing transparent, opalescent, narrow margin and fringes brown. 

 Beneath, wings more yellow and lustrous. 



Female. — Very much like the male. Larger in size. Forewings more 

 heavily shaded. Antenna siinple, touched with yellow at inner base. 



Expanse : Male 27 to 30 mm., female 30 to 33 mm. 



Distribution. — Atlantic coast from Maryland to Nova Scotia ; Illinois ; 

 Wisconsin ; Minnesota ; eastern Canada. 



Remarks. — This species occurs in mixed colonies, composed of the two 

 named forms and in addition color variations ranging from yellow to 

 orange. The predominating color is yellow, orange occasionally only. 

 Orange narrowly banded examples very closely resemble the nearly re- 

 lated, southern species, P. palmii, and as the ranges of the two species 

 overlap in New York and in New Jersey, confusion is likely. Normal 



