644 AN INTRODUCTION TO ENTOMOLOGY 



leaves of which it fastens together with silk. In this way it makes a 

 more or less perfect tube within which it lives, but from which it 

 issues to feed. The moth expands about 1 2 mm. and has bright, glossy, 

 orange fore wings, crossed by four reddish brown bands. 



Family CARPOSINID^ 



This family is distinguished from the preceding one by the fact 

 that in the hind wings both vein Mi and vein M2 are completely lost, 

 and the palpi of the male are short while those of the female are long. 

 This is a small family, only five North American species are now 

 listed, and very little is known regarding the habits of these. 



The currant-fruit-worm, Carposina fernalddna. — In the unpub- 

 lished notes of the late Professor M. V. Slingerland, I find an account 

 of this insect. The larva feeds within the fruit of the currant, eating 

 both the pulp and the seeds. The infested fruit soon drops. When 

 full-grown the larva leaves the berry and goes into the ground to 

 transform. The adult emerges in the following spring about the time 

 the currants are turning red. 



SuPERFAMiLY PYRALIDOIDEA 



The Pyralids and their Allies 



This group of families includes a very large number of small or 

 moderate-sized moths, of fragile structure, normally with firmly and 

 finely scaled wings, and with the anal area of the hind wings broad. 

 The first anal vein of the fore wings is almost always lost, and there 

 is no accessory cell. In the hind wings, there are usually three anal 

 veins; and veins Sc and R are separate along the discal cell, but 

 grown together or closely parallel for a short distance beyond the cell. 

 The maxillag are scaled at their base; and the maxillary palpi when 

 present are of the porrect type. The labial palpi often project 

 beak-like. 



The larvae are characterized by the presence of only two setag on 

 the prespiracular wart of the prothorax, and by setae IV and V of the 

 abdomen being close together. 



This superfamily includes the five following families, which can 

 be separated by the characters given in Table A, page 584. 



Family PYRALIDID^ 



The Pyralids 



The members of this family found in our fauna are mostly small 

 moths, but a few are of moderate size ; some tropical species, however, 

 are quite large. So large a portion of the species are small that the 

 family has been commonly classed with the preceding families as 

 Microlepidoptera. 



