40 U.S. NATIONAL MUSEUM BULLETIN 2 89 



members of the family by the distinctly different male genitalia; 

 particularly by the presence of a subscaphium. The male genitalia of 

 A. maxima superficially resembles that of some species of Heterogymna 

 and Meridarchis but differs, again, by the presence of a subscaphium. 

 Venational differences further distinguish Atoposea from the latter 

 two Old World genera. 



Unfortunately it has not been possible to describe the palpi of this 

 monotypic genus due to the damaged condition of these structures 

 in the single specimen available for study. 



Atoposea maxima (Meyrick), new combination 



Figures 15, 34, 63; Map 4 



Carposina maxima Meyrick, 1912a Trans. Ent. Soc. London, pt. 4, p. 673; 1922, 

 Gen. Insect., fasc. 179, p. 7. — Clarke, 1963, Catalogue of the type specimens 

 of Microlepidoptera in the British Museum (Natural History) described by 

 Edward Meyrick, vol. 4, p. 45, pi. 21, figs. 3-3b. 



Adult (fig. 15). — Wing expanse: cf , 34-35 mm. 



Head : Whitish except for pale brownish fringe of scales bordering 

 eyes. Antennae pale brown; underside of scape whitish. (Labial 

 palpi damaged.) 



Thorax: Whitish to tawny with irregular, dark brown, transverse 

 band across middle; whitish to pale brown underneath. Pro- and 

 mesothoracic legs pale brown ; metathoracic legs whitish, spurs slightly 

 darker, brownish. Fore wings somewhat irregularly mottled with 

 various shades of brown ; darkest along costa, outer half of discal cell 

 and between veins 3 and 6 ; whitish to tawny along lower half of wing 

 and between vein 6 and 8; fringe pale brown to whitish. Hindwings 

 uniformly grayish. 



Abdomen: Whitish to pale brown above, paler beneath. 



Male genitalia (fig. 63). — Uncus conical, indistinctly set off from 

 tegumen, setose; a dense tuft of elongate setae arising from area be- 

 tween uncus and tegumen. Tegumen relatively well developed, nearly 

 as broad as valvae. Gnathos falciform (as viewed laterally), without 

 setae or spines. TranstUla relatively weak, consisting of a narrow 

 transverse band with a pair of setigerous, digitate processes arising at 

 lateral junctions to valvae. Valvae elongate, constricted at apex of 

 sacculus; ampulla clawlike, apical half divided into six, stout spines, 

 decreasing in size ventrally toward base of valva; cucullus simple, 

 without lobes or processes, broadly rounded at apex, densely clothed 

 with fine setae throughout its length. Juxta indistinct, fused to basis 

 of valvae. Subscaphium elongate; posterior end deeply forked one- 

 fourth its total length. Vinculum a narrow ring, slightly enlarged at 

 middle to form a small, triangular saccus. Aedeagus relatively complex 



