Loxosceles, Heineken & Lowe, 1832

Lotz, L. N., 2017, An update on the spider genus Loxosceles (Araneae: Sicariidae) in the Afrotropical region, with description of seven new species, Zootaxa 4341 (4), pp. 475-494 : 476-477

publication ID

https://doi.org/ 10.11646/zootaxa.4341.4.2

publication LSID

lsid:zoobank.org:pub:723F3227-A214-43F8-B598-CD7DFDB8B48B

DOI

https://doi.org/10.5281/zenodo.5257897

persistent identifier

https://treatment.plazi.org/id/03FB8670-D543-674C-FF48-F96657D3FC64

treatment provided by

Plazi

scientific name

Loxosceles
status

 

Key to the Afrotropical species of the genus Loxosceles View in CoL View at ENA

Males

1. Embolus with a flattened spiral towards apex................................................................ 2

- Embolus with thin cylindrical shaft towards apex............................................................ 3

2. Basal part of embolus with a clear ridge ( Fig. 17 View FIGURES 1 – 18 )................................................... L. spinulosa View in CoL

- Basal part of embolus not clearly ridged ( Fig. 2 View FIGURES 1 – 18 )............................................. L. dejagerae View in CoL sp. nov.

3. Cymbium lengthened, much longer than pulp bulb ( Figs 6, 9, 10, 16 View FIGURES 1 – 18 )............................................. 4

- Cymbium short, not much longer than pulp bulb ( Figs 1, 3–5, 7, 8, 11–15, 18 View FIGURES 1 – 18 )..................................... 7

4. Lengthened part of cymbium with an angular bend near palp bulb ( Figs 6, 9 View FIGURES 1 – 18 )...................................... 5

- Lengthened part of cymbium with smooth curve near palp bulb ( Figs 10, 16 View FIGURES 1 – 18 )...................................... 6

5. Lengthened part of cymbium triangular ( Fig. 9 View FIGURES 1 – 18 )..................................................... L. meruensis View in CoL

- Lengthened part of cymbium cylindrical ( Fig. 6 View FIGURES 1 – 18 ).............................................. L. haddadi View in CoL sp. nov.

6. Embolus base narrow at connection with bulb ( Fig. 10 View FIGURES 1 – 18 )............................................... L. parramae View in CoL

- Embolus base broad at connection with bulb ( Fig. 16 View FIGURES 1 – 18 )............................................. L. speluncarum View in CoL

7. Palp cymbium noticeably shorter than tibia length............................................................ 8

- Palp cymbium length close to tibia length................................................................. 14

8. Palp tibia length/height ratio more than 2.5................................................................. 9

- Palp tibia length/height ratio less than 2.5................................................................. 10

9. Embolus base broad at connection with bulb ( Fig. 18 View FIGURES 1 – 18 ).............................................. L. vonwredei View in CoL

- Embolus base narrower at connection with bulb ( Fig. 7 View FIGURES 1 – 18 )........................................... L. irishi View in CoL sp. nov.

10. Palp tibia length/height ratio less than 2.0 ( Fig. 12 View FIGURES 1 – 18 ).................................................. L. rufescens View in CoL

- Palp tibia length/height ratio more than 2.0 ( Figs 3, 4, 8, 13 View FIGURES 1 – 18 )................................................... 11

11. Palp bulb width about half tibia length ( Fig. 4 View FIGURES 1 – 18 ).................................................. L. foutadjalloni View in CoL

- Palp bulb width about a third tibia length ( Figs 3, 8, 13 View FIGURES 1 – 18 )...................................................... 12

12. Palp patella less than half tibia length ( Fig. 8 View FIGURES 1 – 18 )................................................. L. maraisi View in CoL sp. nov.

- Palp patella more than half tibia length ( Figs 3, 13 View FIGURES 1 – 18 ).......................................................... 13

13. Palp femur/cymbium ratio more than 4.5 ( Fig. 13 View FIGURES 1 – 18 ).................................................... L. rufipes View in CoL

- Palp femur/cymbium ratio less than 4.5 ( Fig. 3 View FIGURES 1 – 18 )...................................................... L. fontainei View in CoL

14. Palp femur shorter than patella + tibia length ( Fig. 15 View FIGURES 1 – 18 ).................................................. L. smithi View in CoL

- Palp femur length equal to patella + tibia length ( Figs 1, 5, 11, 14 View FIGURES 1 – 18 ).............................................. 15

15. Embolus narrow at base ( Figs 1, 14 View FIGURES 1 – 18 )...................................................................... 16

- Embolus broad at base ( Figs 5, 11 View FIGURES 1 – 18 )....................................................................... 17

16. Embolus tapering from base to apex ( Fig. 1 View FIGURES 1 – 18 )......................................................... L. bergeri View in CoL

- Embolus very thing from base to apex ( Fig. 14 View FIGURES 1 – 18 )..................................................... L. simillima View in CoL

17. Broad basal part of embolus long ( Fig. 11 View FIGURES 1 – 18 )............................................................ L. pilosa View in CoL

- Broad basal part of embolus short ( Fig. 5 View FIGURES 1 – 18 ).................................................. L. griffinae View in CoL sp. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sicariidae

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