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Lasioglossum noctivaga Linsley and MacSwain, 1962
Sphecodogastra noctivaga (Linsley and MacSwain, 1962)

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Lasioglossum
Subgenus: Sphecodogastra


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Extracted from Studies of Halictinae (Apoidea: Halictidae), II: Revision of Sphecogastra Ashmead, Floral Specialists of Onagraceae by McGinley, J. R. (2003).

Lasioglossum {Sphecodogastra) noctivaga Linsley and MacSwain, 1962:46 [female].�Linsley et al., 1963:43 [locality records; floral association with Oenothera hartwegii],�Gregory, 1964:394 [floral records]. Sphecodogastra noctivaga.�Hurd, 1979:1962 [catalog].�Moure and Hurd, 1987:85 [catalog]. Lasioglossum noctivaga.�Poole, 1996:611 [checklist]. TYPE MATERIAL.�The female holotype is the property of the University of California, Berkeley, and is on loan deposit to the California Academy of Sciences, San Francisco. The speci�men is missing the four distal tarsomeres of the hind left leg but otherwise is in excellent condition. It is labeled "Roosevelt [Uintah County], Ut.fUtah], VI[June]-15-1956/J.L. Eastin Collector/HOLOTYPE Lasioglossum (Sphecodogastra) nocti-vagum Linsley & MacSwain" [red label]. FIGURE 105.�Distribution of Sphecodogastra noctivaga. DISTRIBUTION (Figure 105).�Sphecodogastra noctivaga is sympatric with the closely related and more widely distributed S. texana (Figure 139) through portions of New Mexico, Ne-braska, Oklahoma, and northwestern Texas. Unlike S. texana S. noctivaga has been recorded from Utah. Sphecodogastra texana is known from southeastern Montana, North Dakota, east to Michigan, and south to Michoacan and Veracruz, Mex�ico, which are the most southern records known for the genus. Moure and Hurd (1987) listed S. texana from Indiana. I have not seen specimens from this state, but its occurrence there would not be unexpected. Specimens of S. noctivaga from Ari�zona, Kansas, and Oklahoma examined in this study apparently represent new state records. DIAGNOSIS.�The orange abdomen and conspicuously en-larged ocelli (Figures 11, 106) will distinguish both sexes of S. noctivaga and S. texana from other known species of Sphe-codogastra. The elongate mandibles of female 5. noctivaga (Figure 13) easily distinguish them from female S. texana. which have short ("normal") mandibles (Figure 14). The males can be differentiated on the basis of the morphology of the gen-italic retrorse lobes. These lobes are very broad and twisted vcntrally in S. texana (Figures 31, 32) but are narrow and flat in S. noctivaga (Figure 33). Unfortunately, 1 currently know of no exiernal characters that will reliably distinguish the males of these two species. The head of male S. noctivaga appears to be slightly broader than that of S. texana. The head length/width
ratio for S. noctivaga is 1.03-1.07 (mean = 1.05, n = 5) and for S. texana is 1.00-1.03 (mean = 1.02, n = 5). The sternal vesti-ture, especially on sternum 5, appears to be more flocculent in S. noctivaga than in S. texana. The only other detected differ�ence appears to be in the coloration of the middle tibiae�the central, pigmented portion being brown to dark brown in S. tex�ana and very pale, yellowish brown in pressed; pleuron with conspicuous amount of adpressed hairs. (81) Basal hair bands on T2-T4 virtually absent, inconspicu�ous; moderately developed apical hair band present on T4. MALE: As described for female except as follows: (1) length 8.0-9.7 mm (mean = 8.8, n = 5); (2) wing length 2.4-2.8 mm (mean = 2.6, n = 5); (3) abdominal width 2.0-2.4 mm (mean = 2.2, n = 5). (4) Head (Figure 107) length/width ratio 1.03-1.07 (mean = 1.05, n = 5). (23) Flagellomere 2 approxi�mately 1.5 times length of flagellomere 1. (37) Median meso�scutal line not impressed. (70) Tegula yellow-translucent. (73) Short, adpressed hairs on face extending dorsad to ocellar area, weakly enclosing median ocellus. (76) Mesoscutum with con�spicuously short, adpressed hairs and more elongate, less con�spicuous hairs; pleuron with short, suberect to adpressed hairs. Terminalia (Figures 112-115): (84) S7 lateral arms slender; (85) S8 moderately developed; apex of median process trun�cate; (89) retrorse membranous lobe narrow, parallel sided. FLIGHT RECORDS (Figure 116).�Females of S. noctivaga were collected from May through October, with most records from July. Most males were taken in July, but a few records were collected in September and October. SPECIMENS EXAMINED.�225 (201 females, 24 males). UNITED STATES. ARIZONA: Coconino Co.: Cameron; Navajo Co.: Holbrook, 17 mi NE; Winslow. COLORADO: Baca Co.: Springfield, 31 mi SSW. KANSAS: Clark Co.; Seward Co.: Liberal. NEW MEXICO: Bernalillo Co.: Albuquerque; Chaves Co.; McKinley Co.: Pinedale; Roosevelt Co.: Portales; Portales, 3.5 mi N (Oasis State Park); Santa Fe Co.: Santa Fe; Tao Co.: Ojo Caliente; Torrance Co.: Gran Quivira. OKLAHOMA: Ellis Co.: Shattuck; Harper Co.; Jackson Co.: Elmer; Kiowa Co.: Lugert; Meade Co.: Cimarron River (NW Oklahoma); Roger Mills Co.: Cheyenne; Tillman Co.: Grand-field; Woods Co.: Little Sahara State Park. TEXAS: Dickens Co.: Dumont, 9 mi SW; Hemphill Co.: Canadian; Canadian, 4-8 mi NE; Ward Co.: Monahans, 9.5 mi S; Monahans State Park. UTAH: Emery Co.: Big Flat Top, 2.5 mi NE (Dugout Springs); Gilson Butte; Little Gilson Butte, 2 mi W; San Rafael Desert (3 mi SSE Temple Mountain); Wild Horse Creek (N of Goblin Valley); Grand Co.: Moab; Uintah Co.: Roosevelt.

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FamilyScientific name @ source (records)
Asteraceae  Chrysothamnus sp @ BBSL__NONE (6)
_  Withheld @ BBSL (11)

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