Dasylophia, PACKARD, 1864

7. DASYLOPHIA PACKARD, 1864 View in CoL

Dasylophia Packard, 1864 . Proc. Entomol. Soc. Phila. 3:362. Type species: Phalaena anguina Smith, 1797 .

Adults. ( Figure 1G View FIGURE 1 , 10G View FIGURE 10 ) Head: male antennae bipectinated beyond basal half; female antennae simple filiform; third segment of labial palpus long; antennal tuft present. Thorax: male prothoracic leg without scent pocket; tarsal claws bifid. Wings: males 15 to 18 mm, females 17 to 21 mm; accessory cell present; forewing ground color straw yellow to gray or brown. Abdomen: male with a bifid caudal tuft of scales. Male terminalia ( Figure 8B View FIGURE 8 ): eighth tergite with midplate; eighth sternite variable, posterior margin with a deep V-shaped notch (in some species this Vshape can look like a heart shaped notch). Uncus highly variable, short and narrow, long and narrow, or broadly bifid; socii shape small and peg-like to greatly elongate; valvae with sclerotized costa; costulae present; juxta circular. Aedeagus ranging from short to long, often with distal processes of varying shapes. Female terminalia ( Figure 9H, I View FIGURE 9 ): eighth tergite with midlateral processes; anterior apophyses long; ductus bursae membranous; corpus bursae with a small signum or signum absent; posterior apophyses long; papillae anales relatively small, and membranous.

Diagnosis. Dasylophia is a taxonomically challenging group. What seems to unite the seven species of the genus is the V shape of the eighth sternite. Regarding the genitalia, it seems three groups can be identified. 1) Those species with a very long uncus with long horn-shaped socii which groups D. puntagorda Slossen , D. saturata Barnes , and D. anguina Smith ; 2) Species with stout and rounded uncus with semicircle shaped socii which groups D. melanopa Barnes and D. seriata Druce ; 3) species with a thin and triangular uncus, very short socii and modified transtilla which includes only D. thyatiroides Walker.

Comments. Packard (1864) chose the name “ Dasylophia ” from two Greek words meaning “tufted vertex,” this in reference to the long scale plume arising from each antennal scape. DNA sequence data will be crucial for resolving the taxonomy of Dasylophia ( Miller et al. 2021) . Miller et al. (2021) revised most of the species (those occurring north of Mexico).

Distribution. Canada to Mexico.

Species included (7).

Dasylophia anguina (J. E. Smith, 1797) *

Dasylophia jaliscana Schaus, 1901

Dasylophia melanopa Barnes, 1901

Dasylophia puntagorda Slosson, 1892

Dasylophia saturata Barnes, 1901

Dasylophia seriata Druce, 1887

Dasylophia thyatiroides (Walker, 1862)