614 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



Remarks. — This species, named after T. D. A. Cockerell, undoubt- 

 edly ranges southward into Mexico. It is related to those species 

 having short labial palpi, naked eyes, simple antennae with segments 

 encircled by rings of scales, simple uncus, and fused gnathos. It is not 

 closely related to any of the other acrolophids treated in this work, 

 although it exhibits certain affinities with several species. The harpe 

 of cocker elli is somewhat similar to those of pseudohirsutus and kear- 

 fotti, while its aedeagus is perhaps closest in appearance to that of 

 jyyramellus. However, A. cockerelli may be easily distinguished from 

 its various congeners by its characteristic harpe, gnathos, and vesica. 

 The genital characters of this species are consistent throughout my 

 series representing it. 



I have examined the type cf specimen at the U.S. National Museum, 

 It is labeled "Eulepiste cockerelli Dyar, type no. 4417. (Ace. No. 

 34904). Mesilla Park, New Mexico, at hght, July 8, Ckll." The 

 specimen readily confirms the identity of this species. The character- 

 istic spines of the gnathos are very well developed in the type specimen. 



29* Acrolophus pyramellus (Barnes & McDunnough) 



Figures 135-138 



Eulepiste pyramellus Barnes & McDunnough, 1913, Can. Ent., vol. 45, no. 12, 

 p. 420, pi. 16, fig. 4, Dec. (fig. cited should read "Eulepiste pyramellus, 

 type c^." It is incorrectly labeled Eulepiste antonellus). 



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

 p. 191, no. 8163.— Eyer, 1924, Ann. Ent. Soc. Amer., vol. 17, no. 3, pi. 35, fig. 

 3. (mislabeled). — McDunnough, 1939, Check List Lep. Can. & U.S. Amer., 

 p. 103, no. 9549. 



The original description of Barnes & McDunnough foUows: 



Eulepiste pyramellus — cf.— Antennae annulate; palpi rather smooth, upturned 

 to above front, but not appressed; front pale ochreous, thorax darker; primaries 

 an admixture of pale gray and brown scales, maculation very indefinite and in- 

 distinct, in well-marked individuals consisting of a brownish blotch in cell near 

 base, another at end of cell and a third midway between these two above inner 

 margin, these latter are at times connected outwardly by a whitish oblique 

 waved line which is usually more or less obsolete; indistinct costal and terminal 

 dark dots; secondaries and underside unicolorous smoky brown. Expanse 23 mm. 



Habitat: Pyramid Lake, Nevada. 4 cf . Type, CoU. Barnes. 



The species appears to be intermediate between hirsutus Bsk. and occidens Bsk. 



Male genitalia. — Vinculum typical, as in other species. 



Tegumen glabrous; lateral arm elongate, very slender; dorsal area 

 broad, not separated along meson. 



Harpe simple. Lateral aspect: costa and sacculus indistinctly 

 fused, broadest near point of attachment of arm of transtilla, gi-adually 

 narrowing to base, basal extremity narrowly rounded, glabrous except 

 for sparsely setose ventrocaudal margin of sacculus. CucuUus indis- 



