AROTIADAE 



antemedian called the orbicular, a somewhat kidney -shaped 

 postmedian called the reniform, and an elongate spot placed 

 beneath the orbicular and called the claviform. Hindwings 

 with two posterior lines (representing second and subtermiual) 

 and a discal spot (representing reniform), but these are gener- 

 ally faint or obsolete. 



Larva sometimes very hairy, usually with 10 prolegs, those 

 on 7 and 8 sometimes absent. Pupa with segments 9-11 free; 

 not protruded from cocoon in emergence. 



Tabulation of Families. 



1. Hindwings with 8 connected by bar with cell 



4. Ocnbriadae. 

 „ 8 anastomosing with cell . 2. 



2. 8 anastomosing with cell shortly near base only . 3. 



„ to near middle or beyond 4. 



3. Hindwings with 5 imperfect or obsolete 



2. Caradrinidae. 

 „ „ 5 well developed . 3. Plusiadae. 



4. Face forming a rounded prominence 



2. Caradrinidae (Stilbia). 

 „ not prominent . . ■ 1. Arctiadak 



[Two species of the Syntomididae, an extensive tropical 

 family distinguished from all the four mentioned by the 

 absence of vein 8 of the hindwings, which is wholly coincident 

 with the cell and 7, are said to have occurred in England, viz. : 

 Syntomis phegea, L., a black white-spotted species, in Kent, and 

 Naclia ancilla, L., a small brownish sometimes white-spotted 

 insect with orange hindwings, in Sussex ; but these records are 

 extremely dubious]. 



1. ARCTIADAE. 



Eyes glabrous. Tongue developed. Posterior tibiae with 

 all spurs present. Hindwings : 6 and 7 connate or stalked 

 (rarely approximated or coincident), 8 anastomosing with cell 

 nearly or quite from base to near middle or beyond. 



Although fairly represented in nearly all regions, this family 

 attains increased development within the tropics. The typical 

 wing-markings are not often distinctly traceable, tending to 

 be replaced by irregular spots and blotches, or altogether lost. 

 There is a considerable range of variation in structure, as well 

 as in superficial appearance, but the different forms are linked 



