Acontia toddi Ferris & Lafontaine, 2009

Ferris, Clifford & Lafontaine, Donald, 2009, Review of the Acontia areli group with descriptions of three new species (Lepidoptera, Noctuidae, Acontiinae), ZooKeys 9 (9), pp. 27-46 : 40-42

publication ID 10.3897/zookeys.9.180

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scientific name

Acontia toddi Ferris & Lafontaine

sp. n.

Acontia toddi Ferris & Lafontaine , sp. n.

Figs. 1 View Figure 1 , 8-10 View Figures 2-16 , 19 View Figures 17-19 , 25 View Figures 23-27 , 31 View Figure 31

Type material. Holotype ♁: Utah , Emery Co., San Rafael Reef area, 38° 39.2' N, 110° 43.1' W, 5500' (1675 m), 18-19 May, 1999, C. D. Ferris [ CNC, Ottawa, Canada] GoogleMaps . Paratypes: 10 ♁, 13 ♀. UTAH: Beaver Co., Beaver, 6 mi E, 6300', D. F. Hardwick (2 ♀) ; Emery Co., San Rafael Reef area , 5300', 22 May, 2003 (1 ♁, 2 ♀), 15 May, 2007 (4 ♁, 4 ♀) ; Garfield Co., Star Springs, 36 mi S Hanksville, 6300', 27 Aug. 1971, D .

F. Hardwick (2 ♀); Juab Co., Callao , 29 July 1941, G. F. Knowlton & F. C. Harmston (1 ♁) ; Juab Co., Eureka , 16 July–21 Aug. 1911, Tom Spalding (4 ♁, 3 ♀). Paratypes deposited in CNC, USNM, and the personal collection of C. D. Ferris .

Other material examined and distribution (Fig. 31). 184 specimens not includ- ed in type series were examined (28 dissections). Arizona. Apache, Cochise, Coconino , Mohave , Pima , Pinal , and Yavapai cos .; Chiricahua, Huachuca, Hualupai, Santa Catalina, and White Mts. California. San Bernardino and Riverside cos .; Ivapah Mts.

Montana. Sweet Grass Co. Nevada. Clark, Esmeralda, Lincoln, Lyon, and Nye cos. New Mexico. Chaves, Grant, Hidalgo, Luna, and Otero cos. Oregon. Baker Co. Texas: Culberson, Jeff Davis cos., Davis Mts. Wyoming. Weston Co .; Black Hills. Mexico. Baja California Norte 29° 46' N 114° 46' W. April–August in dry forest clearings, desert canyons, riparian and reef areas from 2900–7600' (885-2320 m). Apparently two generations in some areas (e.g., Grant Co., New Mexico) GoogleMaps .

Note. Material of this species was distributed by E. L. Todd under the unpublished manuscript name “ Acontia deserticola .”

Etymology. We take pleasure in naming this species in honor of the late E. L. Todd.

Diagnosis. DFW basal area nearly white in both sexes; dark brown distal area nearly uniformly brown with only a few scales of different color; orbicular spot nearly obsolete; reniform spot less prominent than in A. areli and A. geminocula , and without dark “pupil.”

Description. Adult male: Head – dark brown with a few whitish scales at antennal base; antenna filiform; palpus porrect, slightly longer than eye width, white basally, brown at tip. Thorax – prothoracic collar and thorax. Foreleg: brown, white-ringed in middle of tibia and at joints. Middle leg: femur and tibia white with brown rings

at joints; tarsi brown, white ringed at joints. Hindleg: femur white; tibia white with light brown shading at tibial-tarsal joint; first tarsal segment white shading to brown at joint with second segment; remaining tarsi brown, white-ringed at joints. Wings: male (FWL 10-13 mm). DFW: ground color white over basal half with two small very pale brown patches on costa and a few scattered pale brownish scales basad; outer half of wing brown with a few scattered small white and dark scale patches; prominent, ap-

proximately square, white preapical patch on costa; orbicular spot virtually obsolete, defined only by a few dark scales; reniform spot circular, filled with darker scales than background; terminal line a series of dark dashes; fringe basally brown, white at tips. DHW: luminous white, nearly hyaline, with pale brown marginal band; fringe white. Female (FWL 10-12 mm) – similar to male but DFW basal area with increased darker overscaling; DHW pale tan with pale brown marginal band. Male genitalia (Fig. 19) – uncus: long, slender, slightly swollen at mid-length, tapers to pointed tip. Valves: asymmetrical; right valve broad, tapering slightly toward apex with slight preapical concavity on dorsal margin; apex rounded with slight dorsal point; corona present but with fewer setae than in other species; clasper on ventral margin with triangular process near middle of dorsal margin, apex spine-like, extending around posteroventral angle of valve; right sacculus with apically spatulate extension; left valve similar but sacculus smaller and without posteror extension; clasper with broad, triangular, dorsal process near base. Aedeagus: similar to that of A. areli ; everted vesica membrane plum-shaped with large unarmed thumb-like dorsal diverticulum subbasally; two large, heavily sclerotized horn-like cornuti, one at base of diverticulum and one near middle of outer margin of vesica; apical part of vesica with two large fields of chitinized projections forming rasp-like patches with band of stouter spines along middle of each patch. Female genitalia ( Fig. 25 View Figures 23-27 ) – ostium bursae funnel-like, tapering only slightly to junction with ductus bursae; ductus bursae tubular, lightly sclerotized, length about 0.6 × length of ovoid corpus bursae; spine-filled posterior pouch of corpus bursae to left of ductus.

Biology. Unknown. Adults April–August in dry forest clearings, desert canyons, riparian and reef areas from 2900-7600' (885-2320 m). Apparently two generations in some areas (e.g., Grant Co., New Mexico).


Canadian National Collection of Insects, Arachnids, and Nematodes


Smithsonian Institution, National Museum of Natural History