Halictidae, Thomson, 1869

Gibbs, Jason, 2016, Bees of the family Halictidae Thomson, 1869 from Dominica, Lesser Antilles (Hymenoptera: Apoidea), European Journal of Taxonomy 180, pp. 1-50 : 42-44

publication ID	https://doi.org/ 10.5852/ejt.2016.180
publication LSID	lsid:zoobank.org:pub:DC65F03D-E892-4E79-A99A-26A11D77213D
DOI	https://doi.org/10.5281/zenodo.3850544
persistent identifier	https://treatment.plazi.org/id/03891349-FFA3-F70C-FF2D-D5BDFACAD98A
treatment provided by	Valdenar
scientific name	Halictidae
status

Treatment

Key to the Halictidae View in CoL of Dominica

1. Head and mesosoma lacking metallic reflections; female without scopa ………………………2 – Head and mesosoma with metallic reflections; female with scopa ……………………………4

2. Legs entirely orange-testaceous ( Figs 15B View Fig , 16B View Fig ); mesepisternum reddish to testaceous; marginal cell with basal fourth or less subtended by submarginal cells; metapostnotum completely covered in reticulate rugae ( Figs 15C View Fig , 16C View Fig ) ……………… Microsphecodes dominicanus (Stage, 1972) View in CoL

– Legs mostly dark brown ( Figs 9B View Fig , 10B View Fig , 11B View Fig , 12B View Fig ); mesepisternum black; marginal cell with basal third or more subtended by submarginal cells; metapostnotum with longitudinal carinulae restricted to basal portion ( Figs 9C View Fig , 10C View Fig , 11C View Fig , 12C View Fig ) ………………………………3

3. Male face mostly bare ( Fig. 9A View Fig ); female metasoma red on T1–T4 ( Fig. 10B View Fig ); both sexes with mesepisternum below scrobe with smooth triangular posterior area ( Fig. 13A View Fig ) …………………… ……………………………………………………………………... Sphecodes diablotinus sp. nov.

– Male face covered in white pubescence ( Fig. 11A View Fig ); female metasoma red on T1–T3 ( Fig. 12B View Fig ); both sexes with mesepisternum below scrobe with narrow smooth posterior margin ( Fig. 13B View Fig ) ………………………………………………………………………… Sphecodes albifacies sp. nov.

4. Metallic red colouration extending over entire body, distinctive on metasomal terga ( Fig. 22B View Fig ); female T5 with median longitudinal specialized area divided; male T7 without preapical carina forming false apex ……………………………… Augochlora ignifera Crawford, 1914 View in CoL

– Metallic colouration limited to head and mesosoma; female T5 with median longitudinal specialized area not divided (may be absent); male T7 with preapical carina forming false apex ……………………………………………………………………………………………………5

5. Head and mesosoma with granular microsculpture, mesoscutal punctation sparse and often obscure; metapostnotum without distinct rugae or carinulae covering most of the surface; female without T1 appressed setose fan …………………………………………………………6

– Head and mesosoma with imbricate microsculpture; mesoscutal punctation dense at least laterally and distinct; metapostnotum with distinct rugae or carinulae covering most of the surface; female with T1 appressed setose fan ……………………………………………………9

6. Two submarginal cells ( Fig. 8B View Fig ); mesoscutal punctation sparse, but distinct; male unknown ………………………………………………………………… Lasioglossum roseauense sp. nov. – Three submarginal cells; mesoscutal punctation obscure …………………………………………7

7. Second and third submarginal cells weak; head longer than wide (length/width ratio = 1.02; Fig. 7A View Fig ); male unknown (antenna unlikely to be clavate) …………………………………………… ……………………………………………………… Lasioglossum punctifrons ( Crawford, 1914) View in CoL

– Second and third submarginal cells strong; head usually wider than long (length/width ratio = 0.84–0.97); male with clavate antenna, slender T1–T2 ( Figs 18B View Fig , 21 View Fig B–C) ………………...8

8. Clypeal yellow or dark brown distal maculation narrow (1/5 longitudinal distance in male, ¼ longitudinal distance in female) ( Figs 17A View Fig , 18A View Fig ); metapostnotum longitudinal length greater than apical width ( Figs 17B View Fig , 18B View Fig ); male head distinctly wider than long (length/width ratio = 0.84–0.85) ( Fig. 18A View Fig ) ………………………………………… Habralictus antillarus sp. nov.

– Clypeal yellow or dark brown distal maculation broad (¼ longitudinal distance in male, ½ longitudinal distance in female) ( Figs 20A View Fig , 21A View Fig ); metapostnotum longitudinal length subequal to apical width ( Figs 20B View Fig , 21B View Fig ); male head narrower (length/width ratio = 0.95–0.96) ( Fig. 21A View Fig ) ………………………………………………………………… Habralictus gonzalezi Gibbs, 2012

9. Hypoepimeral area finely rugulose, without distinct punctures; mesepisternum below scrobe reticulate-rugulose; mesoscutal setae a mix of brown and dull white; male unknown ……………… ……………………………………………………………………… Lasioglossum kalinago sp. nov.

– Hypoepimeral area smooth, with distinct punctures; mesepisternum below scrobe punctate; mesoscutal setae dull white ………………………………………………………………………10

10. Head short (length/width ratio = 0.9; Figs 2A View Fig , 3A View Fig ); smaller in size (body length ~ 4 mm) …… ………………………………………………………………… Lasioglossum dominicense sp. nov.

– Head longer (length/width ratio = 1.0; Figs 5A View Fig , 6A View Fig ); larger in size (body length ~ 5 mm) …… ………………………………………………………………… Lasioglossum kilpatrickae sp. nov.