Lasioglossum

Murao, Ryuki, Lee, Heung-Sik & Tadauchi, Osamu, 2015, Bees of the Lasioglossum series (Hymenoptera: Halictidae) in South Korea, with an illustrated keys to species, Zootaxa 4044 (4), pp. 511-534 : 530-531

publication ID

https://doi.org/ 10.11646/zootaxa.4044.4.3

publication LSID

lsid:zoobank.org:pub:AC09A256-A83D-46B7-A71D-E84B5ABFD138

DOI

https://doi.org/10.5281/zenodo.6108247

persistent identifier

https://treatment.plazi.org/id/0204411B-FFDD-C855-41C5-FB72FA06FB34

treatment provided by

Plazi

scientific name

Lasioglossum
status

 

Key to the species of the Lasioglossum View in CoL series in South Korea

Females

1. Mesoscutum with anterior edge reflexed upward, medio-anterior region with punctures forming a dense transverse ridge (Fig.

2A); T1 basally with dense, thick tomentum (Fig. 2B).................... Lasioglossum subopacum subopacum (Smith) - Mesoscutum flat and punctate on medio-anterior margin (Fig. 2C); T1 without tomentum (Fig. 2D).................... 2 2. Metapostnotum and posterior surface of propodeum demarcated by transverse carina on posterior margin of metapostnotum

(sometimes weakly so) (Fig. 2E)......................................................................... 3 - Metapostnotum and posterior surface of propodeum demarcated by distinct oblique carina on posterior surface (Figs. 2F, 4D)

or not distinctly demarcated by carina ( Fig. 4 View FIGURE 4. A, B, E, F C).............................................................. 7 3. Metapostnotum of propodeum dull, with distinct tessellation among ridges ( Fig. 3A View FIGURE 3. A, B ).............. … L. exiliceps (Vachal) - Metapostnotum of propodeum shiny, nearly smooth among ridges ( Fig. 3B View FIGURE 3. A, B )....................................... 4 4. Posterior surface of propodeum with complete carina extending dorsally to transverse carina ( Fig. 3 View FIGURE 3. A, B C)...................

.................................................................................. L. proximatum (Smith) - Posterior surface of propodeum with incomplete carina not extending to transverse carina ( Fig. 3 View FIGURE 3. A, B D).................... 5 5. Supraclypeus shiny, with very weak tessellation ( Fig. 3 View FIGURE 3. A, B E); T1 medially with sparser PP (IS = 7 d in maximimu; Fig. 4A View FIGURE 4. A, B, E, F )....

......................................................................... L. primavera Sakagami & Maeta - Supraclypeus dull, with distinct tessellation ( Fig. 3 View FIGURE 3. A, B F); T1 medially with denser PP (IS = 1.5 d in maximum; Fig. 4B View FIGURE 4. A, B, E, F )........

................................................................................. L. sutshanicum Pesenko 6. Propodeum with ratio between width of apex of oblique ridges (bidirectional arrows in Fig. 4 View FIGURE 4. A, B, E, F C) and maximum width of poste-

rior surface 0.38–0.68 (n = 13)........................................................................... 7 - Propodeum with ratio between width of apex of oblique ridges (bidirectional arrows in Fig. 4 View FIGURE 4. A, B, E, F D) and maximum width of poste-

rior surface 0.05–0.2 (n = 14)............................................................................ 9 7. PP on T1 basally and medially with dense PP (IS = 1–1.5 d; Fig. 4 View FIGURE 4. A, B, E, F E).......................... L. upinense (Morawitz) - PP on T1 medially sparser than that on both basally and apically (IS =>1.5 d in maximum; Fig. 4 View FIGURE 4. A, B, E, F F).................... 8 8. Mesoscutum and mesoscutellum mixed with dark hairs; PP on lower declivitous surface of T1 sparser than below species (IS =

4.5 d in maximum; Fig. 5A View FIGURE 5. A, B )…............................................ L. nipponicola Sakagami & Tadauchi - Mesoscutum and mesoscutellum with pale yellowish brown hairs over entire surface, not mixed with dark ones; PP on lower

declivitous surface of T1 denser than above species (IS = 2 d in maxmimu; Fig. 5B View FIGURE 5. A, B )............. L. kansuense (Blüthgen) 9. Mesoscutum medially to posteriorly with sparser PP (IS = 3 d in maximum; Fig. 5 View FIGURE 5. A, B C)............ L. denticolle (Morawitz) - Mesoscutum medially to posteriorly with denser PP (IS = 1 d in maximum; Fig. 5 View FIGURE 5. A, B D)............................... 10 10. Integument of mesoscutum with distinct tessellation; lateral and posterior surfaces of propodeum with dense tomentose hairs.

............................................................................. L. circularum Fan & Ebmer - Integument of mesoscutum nearly smooth; lateral and posterior surfaces of propodeum with sparse tomentose hairs....... 11 11. Lateral and oblique carinae of posterior surface of propodeum strongly developed ( Fig. 6A View FIGURE 6. A, B ); submedial patch of T1 with

sparser PP (IS = 3.5 d in maximum; Fig. 6 View FIGURE 6. A, B C)................................................. L. occidens (Smith) - Lateral and oblique carinae of posterior surface of propodeum more weakly developed ( Fig. 6B View FIGURE 6. A, B ); submedial patch of T1 with

denser PP (IS = 2 d in maximum; Fig. 6 View FIGURE 6. A, B D)................................................. L. formosae (Strand)

Males

The male of L. sutshanicum could not examine in the present study. Therefore, it is not include in the following key.

1. Mesoscutum reflexed upward on medio-anterior margin similar to Fig. 2A............ L. subopacum subopacum (Smith) View in CoL

- Mesoscutum flat on medio-anterior margin such as Fig. 2C.................................................... 2

2. Mesoscutum medially and posteriorly with sparser PP (IS = 3 d in maxmimum) such as Fig. 5 View FIGURE 5. A, B C... L. denticolle (Morawitz) View in CoL

- Mesoscutum medially and posteriorly with denser PP (IS = 1.5 d in maximum) such as Fig. 5 View FIGURE 5. A, B D........................ 3

3. S6 with a unique hair tuft ( Figs. 7–8 View FIGURE 7. A – D View FIGURE 8. A – D )...................................................................... 4

- S6 without hair tuft.................................................................................... 9

4. Hair tuft on S6 ∩ or Ω shaped ( Figs. 7A–C View FIGURE 7. A – D , 8B–C View FIGURE 8. A – D )........................................................... 5

- Hair tuft on S6 of different shape ( Figs. 7D View FIGURE 7. A – D , 8A, 8D View FIGURE 8. A – D ).......................................................... 7

5. Apical part of hair tuft on S6 longitudinally narrow ( Fig. 7A View FIGURE 7. A – D )............................ L. circularum Fan & Ebmer View in CoL

- Apical part of hair tuft on S6 thick ( Figs. 7B–C View FIGURE 7. A – D , 8B–C View FIGURE 8. A – D )....................................................... 6

6. Submedial patch of T1 with sparser PP in both sexes (IS = 3.5 d in maximum; white circle in Fig. 6 View FIGURE 6. A, B C)... L. occidens (Smith) View in CoL

- Submedial patch of T1 with denser PP in both sexes (IS = 2 d in maximum; white circle in Fig. 6 View FIGURE 6. A, B D)... L. formosae (Strand) View in CoL

7. Hair tuft on S6 boomerang-shaped ( Fig. 8D View FIGURE 8. A – D )............................................. L. upinense (Morawitz) View in CoL

- Hair tuft on S6 of different shape ( Figs. 7D View FIGURE 7. A – D , 8A View FIGURE 8. A – D )............................................................. 8

8. Apical part of hair tuft on S6 small and short ( Fig. 8A View FIGURE 8. A – D )......................... L. nipponicola Sakagami & Tadauchi View in CoL

- Apical part of hair tuft on S6 longitudinally elongate ( Fig. 7D View FIGURE 7. A – D ).............................. L. kansuense (Blüthgen) View in CoL

9. Head nearly as long as wide or slightly longer than wide (HL/HW ratio = 0.98–1.06, n = 10).......... L. exiliceps (Vachal) View in CoL

- Head broader than long (HL/HW ratio = 0.85–0.91, n = 10).................................................... 5

10. F2 approximately 2× F1; male genitalia with ventral retrorse lobe............................. L. proximatum (Smith) View in CoL

- F2 approximately 1.2× F1; male genitalia without ventral retrorse lobe................ L. primavera Sakagami & Maeta View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae

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