LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 357 



normally strong and naked; ocelli variable; hind tibias smooth-scaled 

 or with stiff bristles; hind tarsi with more or less distinct groups of 

 bristles at ends of segments. Fore wing lanceolate or linear; hind wing 

 narrower; cell usually open below M; and usually reduced in venation. 



In delimiting this family, I have blindly followed Meyrick's revision. 

 It appears homogeneous except for Euclernensia, which lacks the 

 enlarged tarsal spmules and may prove to be a new family type. 

 The most characteristic feature of this family is the resting position, 

 the middle or hind legs being always, so far as known, conspicuously 

 displayed, either raised, or held out laterally. Heliodines, Stathmo- 

 poda (Erineda), Schreckensteinia, and Cycloplasis are known to do this, 

 as well as various exotic forms. Meyrick admits about 225 species. 

 Stathmopoda is the only considerable genus. 



The early stages are various. The egg of Schreckensteinia is upright ; 

 those of the rest I think are unknown. The larvas are various (see 

 Euclemensia, Schreckensteinia, Heliodines, Cycloplasis). The pupa of 

 Schreckensteinia (q. v.) is known. It is formed in a lace cocoon. The 

 parasitic Euclemensia pupates in the host. 



Key to the genera 



1. Hind wing banded with silver 4. Idioglossa. 



1. Hind wing immaculate. 



2. Fore wing with R 5 preserved, running to costa (fig. 219). 

 3. Hind wing nearly as wide as fore wing; hind legs unarmed. 



1. Euclemensia. 



3. Hind wing linear; hind tarsi heavily spined 3. Erineda. 



2. Fore wing with four veins or less running from cell to costa. 



3. Venation reduced to three or four veins 5. Cycloplasis. 



3. Venation fairly complete. 



4. Hind wing lanceolate ; M 3 lost 2. Heliodines. 



4. Hind wing \vith all veins preserved, or linear and very narrow with all 

 veins obsolescent G. Schreckensteinia. 



1. EUCLEMENSIA Grote 

 (Hamadryas Clemens, not Hiibner, etc.) 



Head smooth; palpi upturned to vertex, smooth; maxillary palpi very minute, 

 porrect. Tongue small, scaled; antenna slightly rough-scaled. Tarsi with spinules 

 very weak, tending to gather at tips of segments. Fore wing (fig. 219) with 

 costa concave at middle, dorsal margin arched; hind wing nearly as broad, 

 bluntly lanceolate, without emargination on costa; all veins widely separate. R t 

 obsolete. 



Caterpillar an internal parasite on the oak soft scale, Kermes; forming a cres- 

 centic chamber in the body of the host, which finally becomes very hard and 

 gall-like. Caterpillar white, with brown head, very plump, and strongly concave 

 dorsally. Setae minute, not yet worked out. Prolegs rudimentary, with a circle 

 of uniordinal books. Pupa in the infested gall; not studied. 



The caterpillar cuts a sort of lid in the Kermes for the moth to emerge. 



This is a curious and entirely isolated genus, being the only known internal 

 parasite in the order. It is usually placed in the family (Ecophoridse, as its 



