74 ILLINOIS BIOLOGICAL MONOGRAPHS [74 



PHALONIINAE. 



Phalonia hilar ana (Europe) 



TORTRICINAE 



Sciaphila waJilbomiana (Europe) 



Thiodia arctostapJiylana 



Exartema malana, E. exoletum 



Tmetocera ocellana 



Cydia pomonella, C. (Melissopus) latiferreanus, C. saltitans 



Eucosma pidsatillana, E. scudderiana, E. (Proteopteryx) wil- 



lingana Kearf. 

 Pseudogalleria inimicella 



Alceris minuta, A. hastiana, A. foliana, A. hrittania Kearf. 

 Epagoge sidphureana, E. caryae 

 Archips (a) cerasivorana, A. fervidana, A. parallela 

 Archips (b) argyrospila, A. negundana, A. rosaceana 

 Platynota laMosana 



Olethreutes niveiguUana, 0. (Eudemis) vacciniana 

 Ancylis comptana, A. divisana, A. nuheculana 

 Tortrix fumiferana, T. quercifoliana, T. citrana 

 Episimus argutanus 



Cenopis directana Walk., C. pettitana Robsn. 

 Ecdytolophia insiticiana 

 Enarmonia caryana, E. nehritana, E. prunivora 



Family Thyrididae. 



Head smaller than prothorax, bearing primary setae only; ocelli 

 six, arranged in a regular semicircle ; labrum moderately emarginate ; 

 front reaching more than half way to vertical triangle. Body regu- 

 larly cylindrical; intersegmental incisions shallow. Prothorax with a 

 shield bearing rho near epsilon below alpha and gamma; Kappa group 

 trisetose. Mesothorax and metathorax with Pi group bisetose. First 

 eight abdominal segments with alpha farther laterad than beta, epsilon 

 absent or very minute, kappa and eta borne on the same pinaculum. 

 Pi group consisting of two setae on segment 1, three setae on segments 

 2 to 6, two setae on 7, one seta on 8 ; abdominal segment 9 with alpha 

 closer to dorsomeson than beta (Fig. 55). Prolegs with biordinal 

 crochets in a complete circle ; anal prolegs with transverse series of cro- 

 chets. Spiracles elliptical, small. 



The above characterization was made from Thyris fenestrella of 

 Europe and Dysodia oculatana of America, the chaetotaxy of the two 

 being constant. The bisetose Pi group of the last two thoracic segments 

 and the arrangement of the setae on segment 9 of the abdomen will dis- 



