392 STATE BOARD OF AGRICULTURE. 



A. senatoria Sm. and Abb. Occurs VI- VIII, throughout the State. The 

 larva is the common " oak-worm " which is sometimes locally abundant 

 and destructive. I 

 have seen acres of oak 

 near Jamesburg almost 

 completely defoliated 

 by it. 



A. virginiensis Dru. G. 



d., but more rare than '.^ 

 the other two. Flies 

 in June, and the larva 

 also feeds on oak. 



DRYOOAMPA Harr. 



D. rubicunda Fabr. G. d., 

 V, VI, VII, but local. 

 The caterpillars are 

 sometimes injurious to 

 soft maple and more 

 rarely feed on oak. 



Fig 17.t. — The rosy Dryocainpa, D. rttbicunda; a, larva ; 

 b, pupa ; c, female adult. 



Series BOMBYCIDES. 



This series contains a large number of very diverse families, in all of which 

 the larvae have the sub-primary setae present, represented in the functional 

 armature even when most modified, tubercle VII converted into a leg plate ; 

 IV and V, usually separate, IV moved up behind the spiracle ; I and II separate 

 (except in Nola). Crotchets of abdominal feet rarely forming a circle. 



There is scarcely a common, easily recognizable superficial character that can 

 be given for this series at large, and the families are best mentioned separately .. 



Family LASIOCAMPIDJE. 



Stoutly built, rather shaggy moths of medium size, with pectinated antennae,, 

 small, retracted head, slender palpi and short tongue. The wings are rather 

 short and broad, very densely clothed, usually with a pair of pale or darker 

 brown median lines. The larvae are lappet- and tent-caterpillars, some of them 

 being of economic importance. 



The lappet-caterpillars are so called because they are much flattened and 

 have along the sides fringed processes which, when at rest, are so closely 

 applied to the surface upon which they lie that the insect becomes practically 



