REVISION OF THE OECOPHORIDAE — CLARKE 45 



from the usual type. One section of the group, consisting of atro- 

 dorsella, scdbella^ pulvipennella, ptdeae, and eupatoriiella, forms a 

 very closely knit complex. Another section, consisting of gelidella, 

 hyperella, lythrella, nuhiferella, and arcuella, forms another com- 

 plex of species so closely related that separation on male genitalia 

 is difficult. The female genitalia, however, usually give good char- 

 acters, but where they fail larvae or host plants suffice to distinguish 

 the species. 



In addition there are two species, fulva and amicella, which have 

 become modified and represent offshoots from the type stock. 



The remaining species form a group of very closely related forms. 



Busck^° lists 39 species as belonging to this genus, one {plum- 

 merella) being described as new. The latter falls as a synonym of 

 eupatoriiella. In 1920 Meyrick" described dryadoxena (synonym 

 of costosa) and sciadopa (and proposed the new name testifica for 

 the supposedly preoccupied hyperella Ely) . That same year Barnes 

 and Busck" described pteleae^ latipalpella, hlacella^ callosella, and 

 terinella, of which pteleae and latipalpella are valid species ; Macella 

 falls as a synonym of argUlacea^ terhiella falls to paUidella^ and 

 callosella to sabulella. In 1921 Busck^^ described 'blackmori (syno- 

 nym of costosa) and Braun" described nivalis^ the latter being valid. 

 In 1926 Braun ^^ added cogitata ( synonym of canella) , and in 1933 '^^ I 

 added serrae (synonym of pallideUa) . Keifer ^^ added clarkei in 1936. 

 In the present paper I have transferred eight species to the new genus 

 Martyrhilda and have described eight species and one race as new, 

 bringing the total niunber of described species for our fauna to 44. 

 There are additional species on hand at the present time, but these 

 are represented by poor or unreared material, and I deem it inadvisa- 

 ble to add more names for these. When long or reared series can be 

 obtained, then, and then only, can we safely add new names. The 

 larvae of comparatively few of the species of this genus are known, 

 but those known are found attacking a large variety of plants. Many 

 larvae roll the leaves of the host plants and feed within the tube thus 

 formed; some are leaf tiers and others feed in webs in the inflores- 

 cence or leaves. Pupation occurs in debris on the ground or, 

 occasionally, in the leaf roll made by the larva. 



JO Busck, Proc. V. S. Nat. Mus., vol. 35, p. 198, 1908. 



^ Meyricb, Exotic Microlepidoptera, vol. 2, p. 313, 1920. 



^2 Barnes and Busck, Contr. Lepid. North America, vol. 4, p. 231-233, 1920. 



" Busck, Can. Ent., vol. 53, p. 277, 1921. 



1* Braun, Proc. Acad. Nat. Sci. Philadelphia, vol. 73, pt. 1, p. 10, 1921. 



^ Braun, Can. Ent., vol. 58, p. 47, 1926. 



"Clarke, Can. Ent., vol. 65, p. 84, 1933. 



" Keifer, Bull. Southern California Acad. Sci., vol. 35, p. 10, 1936. 



