NORTH AMERICAN ACROLOPHIDAE — HASBROUCK 667 



description of davisellus, the latter is not at all closely related to ar- 

 canellus. 



Dyar (1900, p. 310) referred to davisellus as follows: "Uncus single, 

 long and slender— Though described as an Acrolophus, this is ob- 

 viously referable to Pseudanaphora, from the short erect palpi — Fort 

 Grant, Arizona, July 20 (H. G. Hubbard)." In his list of 1903, Dyar 

 also reported this species from Texas, on the basis of his "subspecies," 

 minor. However, minor is a distinct species. I know of no valid 

 record for davisellus outside of Arizona. 



44. Acrolophus serratus, new species 



Figures 202-205 



Male. — Head brown. Labial palpi of intermediate length, re- 

 curved back over head and extending over anterior margin of thorax, 

 rather narrowly separated from each other, rather heavily clothed 

 with short scales, segmentation clearly visible despite vestiture, basal 

 portions closely appressed to head, apical portions diverging from head 

 and thorax distad, inner surfaces ochreous, outer surfaces heavily 

 suffused with fuscous. Eyes large, protruding, naked, sparsely lashed. 

 Antennae transitional in form between laminate and unipectinate 

 types, ochreous, covered dorsad by brownish scales; segmental proc- 

 esses somewhat flattened laterad but also somewhat thickened trans- 

 versely, nearly contiguous in basal portions of antennae but becoming 

 progressively more widely spaced from one another toward apical 

 portions of antennae. Forewings with ground color glossy brown, 

 marked with dark brown, pattern variable; markings commonly con- 

 sisting of small bars or spots along costa, diffused patch at outer end 

 of cell merging with large subtriangular patch on and below center of 

 fold, and large spot on fold near base; outer and posterior margins 

 rather pale, with faint brownish markings. Hindwings glossy brown, 

 fringes slightly lighter. Abdomen brown, basal portions densely 

 overlaid with elongate hairs. Wing expanse: 26 to 30 mm. 



Female. — Coloration similar to that of cf , pattern variable as in cf . 

 Labial palpi considerably shorter than in cf, partially recurved back 

 over head and extending well above antennal bases, densely clothed 

 with slender scales, basal portions closely appressed to head and to 

 each other, apical portions diverging from head and from each other 

 distad. Eyes essentially same as those of cf. Antennae simple, 

 slender, clothed with scales except along ventral surfaces. Wing 

 expanse: 32 to 36 mm. 



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



Tegumenof medium width, glabrous; lateral arm gradually narrow- 

 ing to point of articulation with vinculum, margins heavily sclerotized; 



