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Ashmeadiella gillettei Titus, 1904
Ashmeadiella coloradensis Cockerell, 1934; Ashmeadiella (Ashmeadiella) gillettei rufiventris Michener, 1939, valid subspecies; Ashmeadiella (Ashmeadiella) gillettei cismontanica Michener, 1951, valid subspecies; Ashmeadiella (Ashmeadiella) gillettei rubra Michener, 1951, valid subspecies

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Ashmeadiella
Subgenus: Ashmeadiella

Ashmeadiella gillettei, female, face
Smithsonian Institution, Entomology Department · 9
Ashmeadiella gillettei, female, face

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Ashmeadiella gillettei, female, side
Smithsonian Institution, Entomology Department · 9
Ashmeadiella gillettei, female, side
Ashmeadiella gillettei, female, top
Smithsonian Institution, Entomology Department · 9
Ashmeadiella gillettei, female, top

Ashmeadiella gillettei, female, wing
Smithsonian Institution, Entomology Department · 9
Ashmeadiella gillettei, female, wing
Species account taken from: "A Revision of the Genus Ashmeadiella (Hymen., Megachilidae) Author(s): Charles D. Michener Source: American Midland Naturalist,Vol. 22, No. 1 (Jul., 1939), pp. 1-84"

Ashmeadiella gillettei Titus, 1904, Proc. Ent. Soc. Wash., 6:100, 9 Cockerell, 1907, Univ. Colo. Stud., 4:253. Ashmeadiella coloradensis Cockerell, 1934, Am. Mus. Nov., 732:4, 8 Michener, 1936, Am. Mus. Nov., 875:2, 9, 8.

This is a moderate sized, sparsely pubescent species, black or with the hind legs and abdomen partly red.

Female: Inner margins of eyes converge toward clypeus; under side of flagellum dusky or brown; clypeus with weakly concave truncation, shorter than distance from end of truncation to lateral angle of clypeus; punctures of clypeus coarse and close, somewhat longitudinally elongate; distance from first to third mandibular tooth less than greatest width of eye, slightly less than length of last three antennal segments; cheeks narrower than eyes seen from side; anterior ocellus slightly posterior to midpoint between bases of antennae and posterior edge of vertex; distance between posterior ocelli equal to distance to nearest eye margin, slightly less than distance to posterior margin of vertex; punctures of vertex approximate or nearly so, sometimes a little coarser than those of frons, which are approximate; punctures of cheeks finer than those of frons. Scutum punctured like vertex, anterior spots of pubescence weak; tegulae testaceous; wings slightly grayish; mesepisterna more finely punctate than scutum; claw segments of tarsi rufescent; hind femora and inner side of hind tibiae sometimes red, amount of red variable; inner margin of inner hind tibial spurs serrate with about fifteen small teeth, outer margin with about eight long teeth; outer hind tibial spurs with five or six rather large teeth on each margin. Abdomen strongly punctured, punctures of dorsum of second tergite separated by about their diameters; punctures of posterior tergites and sides of abdomen larger and closer, about as coarse as those of mesepisterna. Abdomen black or with first tergite except small mid- dorsal area, second except for large mid dorsal area, and lateral areas on third red; tergites one to five with distinct apical bands of pubescence. Length 6 to 7 mm.

Male: Similar to female but differing thus: Inner margins of eyes converg- ing toward clypeus, except for lower parts which diverge; clypeus finely and closely punctate, much more finely so than rest of head, except for the narrow, smooth, apical margin; apex of clypeus with median concavity a little narrower than basal width of clypeus and demarked by a distinct angle on each side; distance between posterior ocelli greater than distance to nearest eye matgin, usually slightly more than distance to posterior edge of vertex. Punctures of mesepisterna rather widely separated; spots of pubescence at anterior end of scutum absent; sixth tergite with lateral teeth considerably broader than long, median teeth broader than long, rounded conical or subtruncate, concavity between them a semicircle or slightly longer than or shorter than a semicircle. Length 5 to 61/2mm.

Although in 1936 I suggested that there might be two species confused under the name coloradensis because of variability in the sixth tergite of the males, additional material now at hand indicates that this is not the case. We are dealing instead with a highly variable species. So far as known, this species is found only in Colorado, on the eastem slope of the Rocky Mountains and on the plains to the eastward. The Cali- fornian record given by me in 1936 is probably incorrect, as was suggested at the time.

COLORADO: Sterling, Logan County, June 18, 1923 (G. Sandhouse, U. S. N. M.); Mountain Home Lake, Fort Garland, 8300 feet altitude, August 20 to 25, 1932 (Am. Mus. Nat. Hist.

Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Apocynaceae  Cycladenia humilis @ BBSL (1)
Asteraceae  Baileya multiradiata @ BBSL (1)

Baileya sp @ BBSL (2)

Baileya @ UCRC_ENT (17)

Gaillardia pulchella @ UCRC_ENT (1)

Gutierrezia sarothrae @ BBSL (1)

Heterotheca villosa @ BBSL (3)
Boraginaceae  Cryptantha flava @ BBSL (1)

Cryptantha flavoculata @ BBSL (1)

Cryptantha intermedia @ UCRC_ENT (1)

Cryptantha sp @ BBSL (5)

Heliotropium curassavicum @ UCRC_ENT (27)

Phacelia @ UCRC_ENT (1)
Brassicaceae  Brassica sp @ BBSL (1)

Lepidium sp @ BBSL (3)

Stanleya pinnata @ BBSL (5)

Stanleya sp @ BBSL (1)

Thelypodium sp @ BBSL (1)
Cactaceae  Coryphantha vivipara @ BBSL (1)

Opuntia polyacantha @ BBSL (1)

Opuntia sp @ BBSL (1)
Capparaceae  Cleomella sp @ BBSL (1)
Caryophyllaceae  Arenaria hookeri @ BBSL (1)
Fabaceae  Astragalus amblytropis @ BBSL (8)

Astragalus lentiginosus @ BBSL (1); UCRC_ENT (2)

Cercidium sp @ BBSL (1)

Dalea mollis @ UCRC_ENT (1)

Lotus sp @ BBSL (5)

Melilotus sp @ BBSL (15)

Psoralea sp @ BBSL (1)

Psorothamnus a @ UCRC_ENT (1)

Psorothamnus fremontii @ BBSL (1)

Psorothamnus thompsoniae @ BBSL (23)
Hydrophyllaceae  Nama sp @ BBSL (2)

Phacelia palmeri @ BBSL (1)

Phacelia rafaelensis @ BBSL (4)

Phacelia sp @ BBSL (14)
Lamiaceae  Poliomintha incana @ BBSL (3)

Salvia sp @ BBSL (2)
Malvaceae  Sphaeralcea sp @ BBSL (2)

Sphaeralcea @ UCRC_ENT (4)
Onagraceae  Camissonia multijuga @ BBSL (3)
Polemoniaceae  Eriastrum virgatum @ UCRC_ENT (1)

Gilia sp @ BBSL (1)
Polygonaceae  Eriogonum pelinophilum @ BBSL (1)

Eriogonum sp @ BBSL (1)
Rosaceae  Potentilla hippiana @ BBSL (1)
Scrophulariaceae  Penstemon idahoensis @ BBSL (1)

Penstemon laricifolius @ BBSL (7)
_  Withheld @ BBSL (608)

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Updated: 2024-06-18 18:14:45 gmt
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