592 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



Remarks. — This species undoubtedly ranges southward into Mex- 

 ico, and is closely related to cressoni and crescentellus, with which 

 it forms a distinct species group related to those acrolophids having 

 short labial palpi, setose eyes, simple antennae, simple uncus, and 

 fused gnathos. As characterized in the key, the cressoni-maculifer- 

 crescentellus species group consists of small moths having eyes clothed 

 with recumbent or recurved setae, rings of antennal scales widely 

 separated and resembling small funnels, forewings with small patches 

 of upraised scales, and a type of uncus consisting of a single process 

 minutely and acutely bifid at the extreme apex. The vesica of the 

 aedeagus is unarmed in these three species. Acrolophus maculifer 

 may be distinguished from its close relatives, as well as from all other 

 acrolophids treated here, by its characteristic harpe and aedeagus, 

 the latter organ being very strongly recurved in this species. The 

 genital characters of maculifer are consistent throughout my rather 

 small series representing this insect. 



Mr. Tams of the British Museum (Natural History) has sent 

 photogi-aphs labeled "maculifer Wals., type" and showing the adult 

 cf and 9 and their respective genitalia which confu-m the identity 

 of this species. 



20. Acrolophus cressoni (Walsingham) 



Figures 107-109 



Eulepiste cressoni Walsingham, 1882, Trans. Amer. Ent. Soc, vol. 10, p. 169, 



Nov.; 1887, Trans. Ent. Soc. London, p. 142.— Smith, 1891, List Lep. Bor. 



Amer., p. 94, no. 5044.— Dyar, 1900, Can. Ent., vol. 32, no. 10, p. 306; 



1903, List North Amer. Lep., p. 577, no. 6579.— Walsingham, 1915, Biol. 



Cent.-Amer., pt. 12, vol. 4, pp. 377, 385. 

 Acrolophus (Eulepiste) cressoni Busck, 1910, Proc. Ent. Soc. Washington, vol. 11, 



no. 4, p. 187; 1912, Rep. Laguna Marine Lab., vol. 1, p. 169. 

 Acrolophus cressoni Barnes & McDunnough, 1917, Check List Lep. Bor. Amer., 



p. 191, no. 8160.— McDunnough, 1939, Check List Lep. Can. & U.S. Amer., 



p. 103, no. 9546. 



Walsingham 's original description follows: 



Eulepiste cressoni — -Palpi brown, with ochreous scales intermixed, the apical 

 joint with an indistinct pale ochreous band around its middle. Antennae pale 

 brown. Fore wings brown, with scattered purplish fuscous and ochreous scales, 

 the former collected in raised tufts, especially about the dorsal margin ; the latter 

 aggregated in the form of three or four square patches, one before, and one beyond 

 the middle of the dorsal margin, one about the middle of the costa and one at or 

 just before the apex. These in some specimens are so arranged as to form an in- 

 distinct chess-board pattern, the dark and pale squares being alternate on the 

 costal and dorsal halves of the wing; in some specimens the median costal and 

 the antemedian dorsal pale squares, which are always somewhat the most con- 

 spicuous, are joined in an angulated fascia. Abdomen with the hind wings and 

 their cilia dull brown. The first two pairs of legs conspicuously spotted with 

 brown and ochreous, the third pair ochreous on the tibiae, spotted with brown on 

 the tarsal joints. Expanse 15 to 20 milUm., the ? being larger than the cT. 



