Distribution
provided by Catalog of Hymenoptera in America North of Mexico
Transcont. in Canad. and Transit. Zones; Mexico (Hidalgo, Mexico).
- bibliographic citation
- Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.
General Ecology
provided by Catalog of Hymenoptera in America North of Mexico
Occurs in open woods; nests in gravelly soil.
- bibliographic citation
- Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.
Comprehensive Description
provided by Memoirs of the American Entomological Society
Pompilus (Arachnospila) arctus Cresson
Pompilus arctus Cresson, 1865, Proc. Ent. Soc. Phila., 4: 453 [Type: S, Colorado (ANSP, no. 554)]. — Cresson, 1867, Trans. Amer. Ent. Soc, 1: 92.
Psammochares anoplinus Banks, 1919, Bull. Mus. Comp. Zool., 63: 231-232 [Type: 2, Alberta: Medicine L. to Jasper, 4 July 1915 (J. C. Bradley) (CU, no. 683)]. Synonymy by Evans, 1951.
Pycnopompilus siouxensis Dreisbach, 1950, Amer. Midi. Nat., 43: 592, 593, 598 [Type: 8, Nebraska: Glen, Sioux Co., 13 Aug. 1906 (Univ. Nebraska)]. Synonymy by Evans, 1951.
Pycnopompilus sculleni Dreisbach, 1950, ibid., pp. 587, 594, 598 [Type: 8, Oregon: Cornucopia, 7100 feet, 25 July 1936 (HAS) (MCZ, no. 28, 382)]. Synonymy by Evans, 1951.
Pompilus (Arachnospila) arctus Evans, 1951, U. S. Dept. Agri. Monogr. 2, p. 935. — Evans, 1951, Trans. Amer. Ent. Soc, 77: 258-261. — Evans, 1956, Ent. News, 67: 10.
Pycnopompilus parvus Dreisbach, 1952, Amer. Midi. Nat., 48: 152-153 [Type: 8, Utah: Kelton, 24 Aug. 1949 (G. F. Knowlton) (USNM, no. 66, 587)]. Synonymy by Evans, 1956.
• Pompilus (Arachnospila) scelestus Cresson
A P. (AJ arctus Cresson
■ P. (A.) fumipennis eureka (Banks)
(all 3 spp. occur widely in U.S.)
Female. — Length 7.5-14.5 mm. Black; pubescence wholly dark, with obscure to fairly strong bluish reflections; fore wings moderately infuscated, darker apically; hind wings lightly infuscated, also darker apically. Scape without erect hairs; head, thorax, and propodeum otherwise moderately to rather densely hairy. Clypeus about 3 X as wide as high, its apical margin distinctly arcuately excised. MID .59-.63 X TFD; UID .75-.85 X LID; ocelli in approximately a right triangle, POL usually slightly less than OOL. Third antennal segment varying from .60 to 1.0 X UID. Front basitarsus with either three or four comb-spines, the spines varying from 1 to 3 X as long as the width of the basitarsus.
Male. — Length 6.5-12 mm. Black, inner and outer orbits often with small pale streaks; pubescence nearly always silvery on the front, sometimes on parts of the thorax; wings hyaline or lightly infuscated, with a darker outer marginal band. Scape not hairy, but front and vertex rather strongly hairy; propodeum with some strong erect hairs. Front broad, MID .60-.65 X TFD; UID subequal to or slightly greater or less than LID; POL usually less than OOL. SGP convex medially, toward the base with a pair of elevations which may be rounded or acute, sometimes barely evident. Genitalia with the parameres slender throughout; digiti smaller apically and with fewer setae than in the two following species (see fig. 191 in Evans, 1951).
Distribution. — This species ranges from Yukon and Labrador to Central Mexico and to Virginia. (Map 72.)
Mexican specimens examined. — 1 9,1 S . Hidalgo: 18,4
mi. W Pachuca, 16 June 1961 (KU Mex. Exped.) [KU]. Mexico: 1 5, Teotihuacan Pyramids, 6 July 1951 (HEE) [MCZ].
- bibliographic citation
- Evans, H.E. 1966. A Revision of the Mexican and Central American Spider Wasps of the Subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society vol. 20. Philadelphia, USA
