438 STATE BOARD OF AGRICULTURE. 



EUDEILINEA Pack. 



E. herminiata Gn. Staten Island, V and VI (Ds) : larva on bush Dogwood 



(Dyar). 



ORETA Wlk. = DRYOPTERIS G-rt. 



O. rosea Wlk. Hopatcong (Bt, Ptn). Staten Island, VI and VIII (Ds), 

 Newark (Soc), Eagle Rock, VIII (Wdt) ; g. d. though not common; 

 the larva on Viburnum sp. 



PLATYPTERYX Lasp. 



P. arcuata Wlk. Newark (Aug), VIII, 9 (Sb), not rare, Orange Mts., V 

 (Wdt), Staten Island, VIII, IX (Ds), New Jersey (Lt), Hopatcong 

 (Pm) : the larva feeds in a tent, solitary, on birch and alder. The first 

 brood is in June, the second is the form genicula ; some well-marked 

 examples closely approach the Californian race siculifer. 



FALOARIA Haw. = PRIONIA Hbn. 



F. bilineata Pack. Hopatcong (Bt), Staten Island, VI, VIII (Ds) : the larva 



on birch. 



Super-family GEOMETROIDEA. 



These are small or medium-sized moths with slender bodies, small heads and 

 very broad wings which are also, as a rule, frail and thin. The hind wings are 

 quite usually ornamented as are the fore wings, the lines often continuous on 

 both. Many species when at rest keep the wings extended and flat, much as 

 specimens are pinned in the cabinet. 



The larvae are known as "span worms," "measuring worms" or "inch 

 worms " because of their peculiar method of progression. The abdominal legs 

 are in whole or in part obsolete and the caterpillar when in motion first extends 

 the body full length, then humps itself iu the middle and brings the anal seg- 

 ments up to the thoracic feet. When the body is again extended the insect has 

 progressed nearly its own length. These caterpillars often so closely resemble 

 the twigs among which they move that they are with difficulty seen, and some 

 have the habit of stretching out full length so as to appear like a little spur or 

 twig. Some species are injurious on cultivated plants but all are within reach 

 of the arsenites. 



The family and sub-family divisions are based upon characters not readily 

 recognized except by the specialist, and no attempt is made to define them. 



The recent revision by Dr. Geo. D. Hulst has been closely followed in the 

 arrangement ; but as this differs greatly from that used in the first edition, an 

 attempt has been made to give some of the synonymy as a guide. It should be 

 remembered that it is not intended to do more than to guide merely, and the 

 = sign must not be strictly interpreted. 



