Lasioglossum (Sphecodogastra) baleicum ( Cockerell, 1937 )

Murao, Ryuki, 2017, Bees of the Hemihalictus series of Lasioglossum Curtis (Hymenoptera, Halictidae) in South Korea, Zootaxa 4268 (4), pp. 451-488 : 475-476

publication ID

https://doi.org/ 10.11646/zootaxa.4268.4.1

publication LSID

lsid:zoobank.org:pub:BFD371ED-AFDE-49E5-9908-797402B08670

DOI

https://doi.org/10.5281/zenodo.6024564

persistent identifier

https://treatment.plazi.org/id/03A887F7-3266-D30C-FF7E-F8C7FA003254

treatment provided by

Plazi

scientific name

Lasioglossum (Sphecodogastra) baleicum ( Cockerell, 1937 )
status

 

Lasioglossum (Sphecodogastra) baleicum ( Cockerell, 1937) View in CoL

Halictus baleicus Cockerell 1937: 1 [Holotype: American Museum of Natural History , New York, USA; ♀, type locality = Ust- Balei (Balei, Chita Prov.), Russia].

Lasioglossum (Evylaeus) baleicum: Ebmer 1978a: 203 View in CoL ; Ebmer 1995: 571; Ebmer 2006: 558, Figs 35–37 (♂); Murao et al. 2006: Table 1, Figs 3 View FIGURE 3 B, 4C, 6E, 6F, 6I, 6L (♀♂); Murao & Tadauchi 2007: 217, Figs 36–38, 57D, 59D (♀♂), 244 (in key). Evylaeus (Fratevylaeus) baleicus baleicus: Pesenko 2007b: 83 (in key), 91 (in key), 103.

Diagnosis. This species is similar to L. caliginosum Murao et al. and L. vulsum (Vachal) from eastern Asia. Male of this species is separated these species by a combination of the following character states: clypeus generally black over entire surface; mesoscutellum with coarser rugulae ( Murao & Tadauchi 2007, Fig. 36L); tibiae nearly black over entire surface; the gonostylus of genitalia rounded (Murao et al. 2006, Figs 6 View FIGURE 6 E–F); and the ventral retrorse lobe of genitalia slender (Murao et al. 2006, Fig. 6 View FIGURE 6 I). In contrast, in L. caliginosum , the clypeus generally black over entire surface, the mesoscutellum reticulate-punctate ( Murao & Tadauchi 2007, Fig. 42L), the tibiae nearly black over entire surface, the gonostylus ovate (Murao et al. 2006, Figs 6A–B View FIGURE 6 ), and the ventral retrorse lobe broad (Murao et al. 2006, Fig. 6 View FIGURE 6 G); in L. vulsum , clypeus with yellow spot on lower half, mesoscutellum punctate ( Murao & Tadauchi 2007, Fig. 53L), tibiae with yellow spot basally and apically, gonotylus truncated on top (Murao et al. 2006, Figs 6 View FIGURE 6 C–D), and ventral retrorse lobe slender (Murao et al. 2006, Fig. 6 View FIGURE 6 H).

The differences of female among L. baleicum , L. caliginosum , and L. vulsum are shown by Murao et al. (2006). However, when examined additional specimens collected from Japan and the Korean Peninsula, their described differences are subtle as pointed by Pesenko (2007b). In conclusion, females cannot be clearly separated among three species.

Specimens examined. (n = 8) [ South Korea] JJ: 5♂, Yonsil, Mt. Halla-san, 27. vii. 1990 (O. Tadauchi, ELKU) ; 3♂, Mt. Halla-san , alt. 1400–1500 m, 25. vii. 1990 (O. Tadauchi, ELKU) .

Distribution. North Korea, South Korea, Russian Far East, China, Japan.

Flight period in South Korea. Male: July. According to Maeta & Sasaki (2014), the active phases of female in Japan were recognized the following three patterns: 1) spring solitary phase; 2) summer social phase; and 3) autumun mating phase.

Flower records in South Korea. Not recorded.

Comments. Lasioglossum baleicum is divided into two subspecies by Pesenko (2007b), the nominotypical subspecies ranging from the continent, and the ssp. insulicola from Sakhalin to Japan. Both subspecies are separated only by the ventral retrorse lobe of male genitalia broad or narrow. However, it is subtle to separate both subspecies only by this character. In the present paper, I do not consider to separate L. baleicum as two subspecies.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae

Genus

Lasioglossum

Loc

Lasioglossum (Sphecodogastra) baleicum ( Cockerell, 1937 )

Murao, Ryuki 2017
2017
Loc

Lasioglossum (Evylaeus) baleicum:

Murao 2007: 217
Pesenko 2007: 83
Ebmer 1995: 571
Ebmer 1978: 203
1978
Loc

Halictus baleicus

Cockerell 1937: 1
1937
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