Antherophagus pallidivestis Casey, 1900

Kole, John Paul & Ivie, Michael A., 2023, New US State and County Records for Members of the Genus Antherophagus Dejean, 1821 (Coleoptera: Cryptophagidae) with Notes on Biology, The Coleopterists Bulletin 77 (3), pp. 307-318 : 312-313

Antherophagus pallidivestis Casey, 1900 ( Figs. 5–8 , 22 )

Antherophagus pallidivestis Casey 1900: 89 ; Grouvelle 1911: 100; Leng 1920: 202; Hatch 1962: 209; Arnett 1975: 4; Bousquet 1989: 13; Pelletier and Hébert 2019: 163.

104.0705W 47.8223N; 8 JULY 20 AUG 1993; R. G. Bramblett col./ MTEC 147064 . 1- MONT: Richland Co.; near Fairview @ bit ; 104.0705W 47.8223N; 8 JULY 20 AUG 1993; R. G. Bramblett col./ MTEC 147065 . 1- MONT: Richland Co.; Near Fairview @ bit ; 104.0705W 47.8223N;24 JUN 31 JUL 1992; R. G. Bramblett col./ MTEC 147075 . 1- MONT: Richland Co.; Near Fairview @ bit ; 104.0705W 47.8223N; 24 June-31 Jul 1992; R. G. Bramblett col./ 1992/ MTEC 147067 . Sanders County: 1- MONT: Sanders Co. ; ACM Rd E of Thompson ; 47.5883N 115.2302W; 23May-11Aug2018 750m; J. P. Kole Vane trap / MTEC 147058 .

Canada Records: 1- CANADA. Alberta; Univ. of Calgary ; eco reserve; 11. VI98 hand RL/ WF/ MW / MTEC 147066 . 1- BRITISH COLUMBIA Prospect CK. W . of; Merritt L . Funnel ; JUNE- August 1984 / MTEC 147070 .

Range. CANADA: Alberta, British Columbia, Manitoba, New Brunswick, Northwest Territories, Nova Scotia, Ontario, Prince Edward Island, and Saskatchewan. USA: California, Idaho, Indiana ,

Diagnosis. Length 3–5 mm; overall coloration uniform, pale golden with dark femoral margins and antennal insertions; densely clothed with whitish or silver pubescence ( Figs. 5 – 8 ); clypeal notch of male large, almost semicircular, broadly rounded at apex ( Fig. 6 ); head concave around clypeal notch; female with clypeus not emarginate ( Fig. 8 ).

Material Examined. Extralimital USA Records: Idaho: 1- IDAHO: Boise Co; Boise Ridge Rd ; 43.7053°N, 116.0962°W, 22-23 JUNE 2016. J. B . Runyon ; yellow blue vane traps / MTEC 47021 . Wyoming: 1- WYOMING. Yellowstone; National Park ; (110°24’W., 44°55’N.); July 27-31 1987 15; PitfallNextToDeadElk/ MTEC 14045 . 1- WYOM: Yellowstone N. P .; Utah Dorms Elk exclosure; 44.9601°N, 110.6987°W; 09-23 JUNE 1994 1925m; D. S . Sikes , F. I. T./ MTEC 14042 . 1- WYOMING. Yellowstone; National Park ; (110°24’W. 44°55’N.); July 10-13 1978 SE; Control Pitfall Trap / MTEC 147018 .

Montana Records : Flathead County: 1 - MONTANA: Flathead Co.; Glacier National Park ; N . Fork Flathead area ; 1988 Red Bench Fire; Study M. A . Ivie colr./ S . Big Prarie 3560′; old growth unburned; T 35 N. R 21 W. Sec 16; 17-24 JUN 91/ Center flight Intercept Trap / MTEC 147003 . 1- MONT: Flathead Co; Polebridge Hay Crk ; 48.7401N 114.2814W; 25JUL-03OCT2010:3529 FT ; Ivie Lab Malaise / MTEC 147004 . Gallatin County: 1- Langohr Camp; Gallat. Co. Mont; July 4 1960; RO Froeshner / MTEC 147001 . 1- Bozeman , Mont.; Aug 31 1968; B Wiegand / MTEC 147002 . 1- MONT: Gallatin Co.; Hebgen LakeAl 11 PD06002 ; 44.8026N 111.2129W; JUL 14 SEPT 2011: 6775ft; USDA : LnFnl , Sirex / MTEC 147009 . 1- MONT: Gallatin Co.; Bozeman Cr 6200; Interception trap; 8 JULY-8 SEPT 1990; D. L. Gustafson Col. / MTEC 147014 . 1- MONTANA: Gallatin; Co. Fairy Lake Over-; flow: 20 July 1994; R. S . Miller Colr. ; Ex Verbascum / MTEC 147015 . 1- MONTANA: Gallatin Co.; Bridger Mts. 5600ft.; nr. M . Cottonwood Creek ; 45°45′53″N 110°59′18″W; 25-30JUN 2002; A. S . Ramsdale colr.; FIT riparian Forest / MTEC 147017 . 1- MONT: Gallatin Co.; W . YellowstoneAL11 PD6001 ; 44.6858°N 111.2153°W; JUN 19-JUL2011: 6748ft; USDA : LnFnl , Sirex / MTEC 147019 . 1- MONTANA: Gallatin Co.: Towne’s Harvest Garden N 45°39.92W 111°4.35; Net: H . maximilliani; Beetle on Bombus bifarius ; 12Aug2014, C. M . Delphia / MTEC 147025 . 1- MONT: Gallatin Co.; Hyalite Cr. Langher Camp-; Ground area 2 July 1994; K. B . Miller , colr./ MTEC 147027 .1- MONTANA: Gallatin Co.; In B. centralis nest; Nest removed from home; In Bozeman 27 July 2014; C. M . Delphia , J. L . Monte / MTEC 147062 .

Glacier County: 1- MONTANA: Glacier Co.; Glacier National PK; St.Mary ; 27 JUN-31JUL 1992 M. M . Hooten colr./ UV light trap/ MTEC 147010 . 2- MONT: Glacier Co.; Glacier Nat. Park ; 06-26 June 1992; MM Hooten Colr./ ( MTEC 147011 , MTEC 147012 ). 1- MONT : Glacier Co; POE-Chief Mountain; 48.9967°N 113.6607°W; 21JULY-21 SEPT 2010, 4581ft; USDA ; Bait LinFnl / MTEC 147022 . 1- MONT: Glacier Co.; Glacier Nat. Park; St. Mary @ t.l.t.; 01-10 AUG 1991 M. M. Hooten col./ MTEC 147023 . Lincoln County: 1- MONT : Lincoln Co Lk. Koocanusa, Bridge 48.8208N 115.2856W 15May-20 Jun 2012,2660ft; C . Hart , E . Ivie; Malaise / MTEC 147006 . 1- MONTANA: Glacier Co.; Glacier National PK; St.Mary ; 27 JUN-31JUL 1992 M. M . Hooten colr./ UV light trap/ MTEC 147007 . 1- MONT: Lincoln Co. 2178m; Northwest Peak Trailhead; 48.9624°N 115.9567°W; 16 JULY 11 AUG 2014 lindgren; T. Kelly & A . Dolan colrs/ MTEC 147026 . 1- MONT: Lincoln Co Lk. Koocanusa Sutton Rd; 48.4651N 115.2653W; 26JULY-02OCT2010,2736ft; Kraus et al. FIT alder/ MTEC 147005 . Missoula County: 1- MONT : Missoula Co.; Hwy 210. E of Turah 46.8198N 113.7986W; 03JUNE-19 AUG 2014: 3334ft; F . Etzler:LF.PSB/ MTEC 147013 . Ravalli County: 1- MONT : Ravalli Co.; Warm Springs Camp; 24-25 JUNE 1994 D. L. Gustafson Col. / MTEC 147020 . Sanders County: 1- MONT : Sanders Co. 3 mi. SE Dixon ; 10 JULY 1988; M . Ivie & K . Philips / MTEC 147008 .

Canada Records: 1- CANADA: Alberta; Fish Creek Provincial Park; 50°55.721′N 114°03.835′W; Sweep : 22JUN2010; J. E . Swann/ MTEC 147016 .

Range. CANADA: Alberta, British Columbia, Ontario, New Brunswick, and Newfoundland .

USA: Colorado, Idaho, Montana, Oregon, Utah, Wisconsin, and Wyoming.

Biology. Antherophagus pallidivestis have been taken in Lindgren funnels, UV light traps, flight intercept traps, and by hand. Some specimens were associated with B. centralis and Bombus bifarius Cresson, 1878 including an individual which was taken from a B. centralis nest, and an individual attached to the antenna of a B. bifarius worker.

Additional Remarks. There are two large, yellow species of Antherophagus known from Montana, A. pallidivestis and A. ochraceus . The easiest way to distinguish these species is the color of the setae, which are golden in A. ochraceus and silver in A. pallidivestis . Unfortunately, this character can be difficult to use without examples of both species to compare, and differences in lighting may further complicate species-level identification, especially when only one species is available. Fortunately, large, mixed series can be avoided as the two setae types look very different when placed next to one another. For males, the characters of the clypeal notch may be helpful, as the clypeal notch of A. pallidivestis is larger in terms of width ( Fig. 6 ) than that of A. ochraceus ( Fig. 2 ). Pelletier and Hébert (2019) offered eye size as a potential character to differentiate between these species. Unfortunately, the size of the eye is sex dependent, with males generally having larger eyes than conspecific females, and is variable even within a single sex and species. Likewise, the comparison between the length of the temple and that of the eye, another character proposed by Pelletier and Hébert (2019), has proved unreliable for differentiating these species in Montana.

Figures

Figs. 1–8. Antherophagus ochraceus: 1) Male, dorsal view; 2) Male, head; 3) Female, dorsal view; 4) Female, head. A. pallidivestis: 5) Male, dorsal view; 6) Male, head; 7) Female, dorsal view; 8) Female, head. Scale bars = 1.0 mm.

Figs. 21–23. Montana counties with Antherophagus records. 21) A. ochraceus; 22) A. pallidivestis; 23) A. suturalis.