Lasioglossum (Dialictus) petrellum ( Cockerell, 1903 ),

Gardner, Joel & Gibbs, Jason, 2020, The ‘ red-tailed’ Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic, European Journal of Taxonomy 725, pp. 1-242: 167-169

publication ID

https://doi.org/10.5852/ejt.2020.725.1167

publication LSID

lsid:zoobank.org:pub:89FA8DDF-F4B9-417A-A5AF-B2BC9660E024

DOI

http://doi.org/10.5281/zenodo.4337936

persistent identifier

http://treatment.plazi.org/id/03F287F3-21EB-FF4E-8ADB-FEB434A4FD4D

treatment provided by

Plazi

scientific name

Lasioglossum (Dialictus) petrellum ( Cockerell, 1903 )
status

 

Lasioglossum (Dialictus) petrellum ( Cockerell, 1903) 

Fig. 73View Fig

Halictus petrellus Cockerell, 1903: 84  (holotype, ♀, deposited in USNM, examined).

Halictus coronadensis Cockerell, 1916: 56  (holotype, ♂, deposited in USNM, examined; synonymy by Timberlake in Michener 1951).

Halictus (Chloralictus) petrellus  – Sandhouse 1924: 3 (key).

Lasioglossum (Chloralictus) petrellum  – Michener 1951: 1116 (catalog).

Dialictus petrellus  – Hurd 1979: 1970 (catalog). — Moure & Hurd 1987: 121 (catalog).

Lasioglossum (Dialictus) petrellum  – Gibbs 2009: 376, figs 7a–b, 8a–b, 9a–d (key, redescription).

Diagnosis

Both sexes of Lasioglossum petrellum  can be recognized by the characters for the Lasioglossum petrellum  species complex (below), in addition to the characters given in the keys. They are most similar to L. droegei  . Females of L. droegei  have T2–4 with more extensive tomentum, and metasoma usually mostly red-orange. Males of L. droegei  have T1–3 apical areas with very strong microsculpture (similar to scutum) and indistinct punctures. In addition, the distributions of these two species are not known to overlap: L. petrellum  is known from the Sonoran Desert and west coast of California and Baja California, while L. droegei  is only known from the Chihuahuan Desert.

Etymology

Cockerell (1903) named this species after the type locality of San Pedro, California, after Latinizing the name Pedro to Petra and adding the adjectival diminutive suffix ‘- ellus ’.

Material examined

Holotype

UNITED STATES – California • ♀; San Pedro ; [33.74° N, 118.29° W]; Jul. 11 year unknown; Cockerell leg.; USNM 27771View Materials.GoogleMaps 

Other material

MEXICO – Baja California • 1 ♂; Coronado Islands ; [32.4° N, 117.244° W]; Aug. 21 year unknown; T. and W. Cockerell leg.; USNMGoogleMaps  3 ♀♀; Los Frailles ; 18 Mar. 1953; P.H. Arnaud leg.; CAS  . – Baja California Sur • 1 ♂; Isle Carmen ; [26° N, 111.1° W]; 24 Jan. 1992; G.E. Hutchings leg.; GEHGoogleMaps  .

UNITED STATES – Arizona • 1 ♀; Yuma Co., Palm Canyon, Kofa Mountains ; [33.36° N, 114.1° W]; 8 Apr. 1963; W.A. Steffan leg.; EMECGoogleMaps  1 ♀; Sabino Canyon ; [32.33° N, 110.8° W]; 9 Jul. 1952; R.H. and L.D. Beamer, W. LaBerge, A. Well, C. Liang and C. Weiner leg.; SEMCGoogleMaps  . – California • 1 ♀; San Bernardino Co., Caruthers Canyon ; [35.25° N, 115.3° W]; 1768 m a.s.l.; 11 Sep. 1994; T. Griswold leg.; ex Gutierrezia microcephala  ; BBSLGoogleMaps  1 ♂; San Bernardino Co., Cima Dome, Sec 12 T14N R13E; [35.31° N, 115.54° W]; 1539 m a.s.l.; 16 Jun. 1980; T. Griswold leg.; BBSLGoogleMaps  2 ♀♀; San Bernardino Co., Granite Mts , Sc17T8NR13E; [34.78° N, 115.64° W]; 1234 m a.s.l.; 22–25 May 1983; T L. Griswold leg.; ex Cylindropuntia echinocarpa  ; BBSLGoogleMaps  1 ♀; San Bernardino Co., Granite Mts , Sec 17 T8N R13E; [34.78° N, 115.64° W]; 1234 m a.s.l.; 9 Jun. 1980; T. Griswold leg.; BBSLGoogleMaps  1 ♀; San Bernardino Co., Sheep Corral ; 34.7348° N, 115.6815° W; 24 May 1995; T. Griswold leg.; ex Sphaeralcea ambigua  ; BBSLGoogleMaps  1 ♀; San Bernardino Co., Willow Wash , Sec24 T13N R10E; [35.2° N, 115.87° W]; 671 m a.s.l.; 6 Apr. 1983; T. and R. Griswold leg.; BBSLGoogleMaps  4 ♀♀; San Diego Co., La Jolla ; [32.83° N, 117.27° W]; 7 Jul. 1963; P.D. Hurd leg.; ex Mesembryanthemum crystallinum  ; EMECGoogleMaps  1 ♀; Santa Barbara Co., Tunnel Rd ; [34.456° N, 119.71° W]; 10 May 1985; Pritchett leg.; CCBERGoogleMaps  4 ♀♀; Anza-Borrego, Lost Vlly. Rd.; 33.3746° N, 116.6141° W; 2 May 2015; Hung, Cen and Davids leg.; WRMEGoogleMaps  1 ♀; San Diego ; [32.7° N, 117.1° W]; 17 May 2004; DB leg.; WRMEGoogleMaps  1 ♀; Sunset Cove, Granites Res. Stn Mojave Desert ; 34.779° N, 115.6631° W; 13 Apr. 2017; J. Braun leg.; PCYUGoogleMaps  1 ♀; same location as for preceding; 25 Apr. 2018; J. Braun leg.; PCYUGoogleMaps  1 ♀; same location as for preceding; 28 Apr. 2018; J. Braun leg.; PCYUGoogleMaps  .

Description

See Gibbs (2009b) for a complete redescription and figures.

Range

Coasts and deserts of southern California and Baja California, east through southern Arizona ( Fig. 73View Fig).

Floral records

AIZOACEAE Martinov  : Mesembryanthemum  L. M. crystallinum  L. • AMARANTHACEAE Juss.  Atriplex  L. A. semibaccata R.Br.  (G09) • ASTERACEAE Giseke  : Encelia  : E. farinosa A.Gray ex Torr.  (G09) • Ericameria  : E. nauseosa (Pall. ex Pursh) G.L. Nesom & Baird  : E. n. var. nauseosa (Pall. ex Pursh) G.L. Nesom & Baird  (G09) • E. palmeri (A.Gray) H.M. Hall  (G09) • E. parishii (Greene) H.M. Hall  (G09) • Gutierrezia  : G. microcephala (DC.) A.Gray  Hypochaeris  : H. glabra  L. (G09) • Lepidospartum  : L. squamatum (A.Gray) A.Gray  (G09) • BORAGINACEAE Juss.  Phacelia Juss.  P. distans Benth.  (G09) • P. minor (Harv.) Thell. ex F. Zimm.  (G09) • CACTACEAE Juss.  Cylindropuntia (Engelm.) F.M. Knuth  : C. echinocarpa (Engelm. & J. M. Bigelow) F.M. Knuth  Ferocactus Britton & Rose  : F. cylindraceus (Engelm.) Orcutt  (G09) • CRASSULACEAE J. St.  -Hil. Dudleya Britton & Rose  (G09) • MALVACEAE Juss.  Sphaeralcea A. St.  -Hil. S. ambigua A.Gray  PLANTAGINACEAE Juss.  Penstemon Schmidel  (G09) • SCROPHULARIACEAE Juss.  Scrophularia  L. S. californica Cham. & Schltdl.  (G09) • SOLANACEAE Adans.  Datura  L. D. inoxia Mill.  (G09).

DNA barcodes

Three sequences available (BOLD process IDs: DLII1372-08, DLII1415-08, DLII1418-08; BIN: BOLD:AAF4030). Lasioglossum petrellum  differs from all other western red-tailed L. ( Dialictus  ) by 4 fixed substitutions: 4(T), 373(G), 402(G), and 432(C). It differs from L. droegei  , L. griswoldi  , and L. tuolumnense  by an additional 8 fixed substitutions: 78(T), 105(T), 132(C), 216(G), 334(G), 363(C), 456(C), and 624(T) (Supplementary file 4).

Remarks

Gibbs (2009b) recorded this species only from California and Baja California. Additional specimens are now known from Arizona.

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

CAS

USA, California, San Francisco, California Academy of Sciences

GEH

GEH

SEMC

USA, Kansas, Lawrence, University of Kansas, Snow Entomological Museum

BBSL

BBSL

CCBER

CCBER

PCYU

PCYU

USNM

Smithsonian Institution, National Museum of Natural History

SEMC

University of Kansas - Biodiversity Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae

Genus

Lasioglossum

Loc

Lasioglossum (Dialictus) petrellum ( Cockerell, 1903 )

Gardner, Joel & Gibbs, Jason 2020
2020
Loc

Dialictus petrellus

Moure J. S. & Hurd P. D. 1987: 121
Hurd P. D. 1979: 1970
1979
Loc

Lasioglossum (Chloralictus) petrellum

Michener C. D. 1951: 1116
1951
Loc

Halictus (Chloralictus) petrellus

Sandhouse G. A. 1924: 3
1924
Loc

Halictus coronadensis

Cockerell T. D. A. 1916: 56
1916
Loc

Halictus petrellus

Cockerell T. D. A. 1903: 84
1903