Linda Dahlberg · 1
Villa lateralis |
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Jaime Fuest, University of Georgia · 0
Villa lateralis |
Jaime Fuest, University of Georgia · 0
Villa lateralis, dorsal |
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Jaime Fuest, University of Georgia · 0
Villa lateralis, female, lateral |
Jaime Fuest, University of Georgia · 0
Villa lateralis, male, lateral |
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Jaime Fuest, University of Georgia · 0
Villa lateralis, posterior |
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Identification | |
The original species description is presented here in text form.
Citation: Johnson, C.W. 1908. Notes on New England Bombyliidae, with a description of a new species of Anthrax. Psyche 15:14-15.
ANTHRAX LATERALIS Say.
This variable and widely distributed species has in the Eastern United
States two well marked variations which cause considerable confusion
when lumped with the typical form. In order to eliminate this
confusion provisionally I will briefly define the two forms. The one
more commonly observed has the tomentum on the front black, on the
face it is grayish, but in certain lights blackish; anterior margin of
the thorax, pleurae and sides of the first two segments of the
abdomen, with yellow pile; entire dorsum of the thorax, the middle of
the first and second segments and all the other segments of the
abdomen with black tomentum and pile. In some specimens there is a
faint band of yellow tomentum at the base of the fourth segment and
more or less prominent tufts of silvery tomentum on the terminal
segment.
They vary in length from 7 to 11 mm. This seems to be the only form
that can, with any certainty be referred to Macquart's gracilis "Face
et front a poils noirs. Un peu de fond testace sur les cotes des deux
premiers segments de l'abdomen. Long. 4.25 l. Female". The varietal
name of gracilis might therefore be used. Specimens are before me
from Cranberry, N.C., June 10, '96 (H.W. Wenzel); Westville, N.J.,
June 15, '94 (C.W. Johnson); Lehigh Gap, Pa., July 2, '01 (H.L.
Viereck) Lake Pleasant, N.Y. (Dr. E.G. Love). Woods Hole, Mass., July
24, '03 (Johnson) Jaffrey, N.H.; Waterville, Me., July 19, '07 and
Hampden, Me., Aug. 16, '07 (E.F. Hitchings).
In appearance it seems to hold the same relation to the typical
lateralis that hypomelas holds to alternata, although in the latter
case hypomelas is considered a good species. The group should be
carefully studied in connection with some of the western species.
The other is a small form 6 to 7 mm. in length, with white tomentum
and pile. The only yellow tomentum is a small triangular patch in
front of the scutellum and sometimes scattered scales on the terminal
segment of the abdomen. The second, third and fourth segments have
prominent basal bands of white tomentum. This form seems to be more
numerous in the spring. It was collected at Riverton, N.J., April 30;
at Clementon, N.J., numerous specimens were taken from May 16 to 30,
flying over the white sand; it was also collected among the sand dunes
back of Provincetown, Mass., June 25, 1904. The varietal name of
arenicola might be applied to this form.
A number of other interesting species of Bombylidae have been added to
the New England fauna, including:-Spogostylum albofasciatum Macq.,
Provincetown, Mass., June 25-27, 1904. Spogostylum pauper Loew,
Provincetown, Mass., June 25; Manomet, Mass., July 17, (J.A. Cushman).
Oncodocera leucoprocta Wied., West Bedford, Mass., June 8, 1906 (L.W.
Swett). Phthiria coquilleti Johnson, Nantucket, Mass., July 4, '06
(J.A. Cushman). The latter were slightly smaller than the types
collected at Riverton, N.J.
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Names | |
Anthrax lateralis
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Geographic distribution | |
Nearctic: Canada (Alberta, British Columbia, Manitoba, Ontario, Quebec, Saskatchewan), USA (Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Hampshire, new Jersy, New Mexico, New York, North Carolina, north Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming), Mexico (Baja California Norte, Baja California Sur, Durango, Guerrero, Morelos, Nuevo Leon, Puebla, San Luis, Potosi, Sinaloa, Sonora, Tiburon I). Neotropical: Bahamas, British Virgin Is, Costa Rica, Cuba, Dominica, Guadeloupe, Guatemala, Jamaica, Mexico (Oaxaca), Panama, Puerto Rico (Evenhuis and Greathead, 1999).
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Natural history | |
Villa lateralis is known to be a highly variable species with multiple recognizalbe forms (Johnson, 1908).
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References | |
Evenhuis, N.L and D.J. Greathead. 1999. World Catalog of Bee Flies (Diptera: Bombyliidae). Backhuys Publishers, Leiden.
Greathead, D.J. and Y. Karimpour. 2006. A new species of Villa (Lioy), 1864 (Diptera: Bombyliidae) parasitic on Sesiidae (Lepidoptera). Zootaxa 1156:65-68.
Johnson, C.W. 1908. Notes on New England Bombyliidae, with a description of a new species of Anthrax. Psyche 15:14-15.
Solomon, J.D. 1995. Guide to Insect Borers of North American broadleaf trees and shrubs. Agric. Handbook. 706. Washington, D.C.: U.S. Department of Agriculture, Forest Service. 735p.
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Acknowledgements | |
The first two images of Villa are specimens obtained from Cecil Smith, curator of the Georgia Museum of Natural History at the University of Georgia. Both of these specimens were captured by P.W. Fattig. The flies were caputred at Douglas Lake, Michigan, 13.VIII.1915, and Armuchee, Georgia, 5.VIII.1937.
Both a male and a female are represented in the next two images. The male was captured in Kouchibouguac, New Brunswick, Canada, on 16.VIII.1977. The female was captured at the same location on 21.VIII.1977. The last image features the wing venation clearly seen in a posterior view on the male. The author gratefully acknowledges Dr. Andrew M.R. Bennett and the Canadian National Collection of Insects (CNC) for receipt of these specimens.
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Updated: 2024-04-25 22:24:07 gmt
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