Hamma Buckton, 1905

Durante, Antonio, Loudit, Sandrine Mariella Bayendi & Susini, Antonio, 2021, On the genus Hamma Buckton, 1905 (Hemiptera: Auchenorrhyncha) in Equatorial Africa, with descriptions of three new species, European Journal of Taxonomy 748 (1), pp. 89-107 : 91-94

publication ID

https://doi.org/ 10.5852/ejt.2021.748.1345

publication LSID

lsid:zoobank.org:pub:F177330C-76B8-4062-B2F3-4C7ADD012F2E

DOI

https://doi.org/10.5281/zenodo.4746540

persistent identifier

https://treatment.plazi.org/id/D32287A5-FFDF-FFAC-6A72-6EC9FE141391

treatment provided by

Plazi

scientific name

Hamma Buckton, 1905
status

 

Genus Hamma Buckton, 1905 View in CoL

The description of three proposed new species is here reported. They were discovered in Gabon and Equatorial Guinea by the third author. The following checklist and keys include the new entries since 2014 ( Durante & Susini 2017, plus present data).

Check-list of the species belonging to the genus Hamma View in CoL

1. Hamma boulardi Bayendi Loudit, Durante & Susini, 2014

Hamma boulardi Bayendi Loudit, Durante & Susini, 2014: 323–346 View Cited Treatment , fig. 9

2. Hamma brevicornis Boulard, 1968 View in CoL

Hamma brevicornis Boulard, 1968: 942–944 View in CoL , figs 3, 10–11

3. Hamma caneparii sp. nov.

4. Hamma capeneri Boulard, 1968 View in CoL

Hamma capeneri Boulard, 1968: 938–941 View in CoL , figs 1, 8, 16

5. Hamma carlini Bayendi Loudit, Durante & Susini, 2014

Hamma carlini Bayendi Loudit, Durante & Susini, 2014: 323–346 View Cited Treatment , fig. 12

6. Hamma cinnameus Boulard, 1969 View in CoL

Hamma cinnameus Boulard, 1969: 106–107 View in CoL , figs 3–5

7. Hamma cupreum Durante & Susini, 2017

Hamma cupreum Durante & Susini, 2017: 3–8 View Cited Treatment , fig. 5

8. Hamma fabulosum Boulard, 1968 View in CoL

Hamma fabulosum Boulard, 1968: 945–946 View in CoL , figs 5, 14–15

9. Hamma franciscae Bayendi Loudit, Durante & Susini, 2014

Hamma franciscae Bayendi Loudit, Durante & Susini, 2014: 323–346 View Cited Treatment , fig. 14

10. Hamma grahami (Distant, 1916) View in CoL

Amitrochates grahami Distant, 1916b: 328

Hamma mabirensis China, 1923: 463–465 ; synonymized by Funkhouser 1927

Hamma grahami (Distant) View in CoL – Capener 1955: 376

11. Hamma heimi Boulard, 1968 View in CoL

Hamma heimi Boulard, 1968: 944–945 View in CoL , figs 4, 12–13

12. Hamma nigrum sp. nov.

13. Hamma nodosum Buckton, 1905 View in CoL

Hamma nodosum Buckton, 1905: 330 View in CoL , pl 21 fig. 3

Hamma nodosa Buckton, 1905: 330 ; incorrect subsequent spelling for H. nodosum View in CoL

14. Hamma pattersoni Distant, 1916 View in CoL

Hamma pattersoni Distant, 1916a: 157–158 View in CoL

15. Hamma pygmaeum Capener, 1972 View in CoL

Hamma pygmaeum Capener, 1972: 50–51 View in CoL , figs 198–200

16. Hamma rectum ( Vignon, 1930)

Amitrochates rectus Vignon, 1930: 408–409 , fig. 673

Hamma kilossae Dlabola, 1945: 155–156 , synonymized by Metcalf & Wade 1965: 506

Hamma recta – Metcalf & Wade 1965: 506

Hamma rectum – Capener 1968: 108

Hamma rectum – Boulard, 1968: 946–948 [new description], figs 6–7

17. Hamma robustum Capener, 1971 View in CoL

Hamma robustum Capener, 1971: 28–29 View in CoL , figs 23–25

18. Hamma sandrinei Durante & Susini, 2017

Hamma sandrinei Durante & Susini, 2017: 3–8 View Cited Treatment , figs 2–3

19. Hamma simplex Boulard, 1968 View in CoL

Hamma simplex Boulard, 1968: 941–942 View in CoL , figs 2, 9

20. Hamma spinellii sp. nov.

21. Hamma spinosum Capener, 1971 View in CoL

Hamma spinosum Capener, 1971: 25–27 View in CoL , figs 17–19

22. Hamma ugandensis Capener, 1971 View in CoL

Hamma ugandensis Capener, 1971: 27–28 View in CoL , figs 20–22

Key to species of the genus Hamma (updated after Bayendi Loudit et al. 2014)

1. Posterior pronotal process without terminal spine ( Bayendi Loudit et al. 2014: figs 12, 14) .......... 2

– Posterior pronotal process with a terminal spine .............................................................................. 3

2. Pronotum with reddish brown blunt tubercles ( Bayendi Loudit et al. 2014: fig. 14) ......................... ............................................................ Hamma franciscae Bayendi Loudit, Durante & Susini, 2014

– Pronotum with black thorn-like tubercles ( Bayendi Loudit et al. 2014: fig. 12) ................................ .................................................................. Hamma carlini Bayendi Loudit, Durante & Susini, 2014

3. Suprahumeral horns prominent, ending in a thorn ( Bayendi Loudit et al. 2014: fig. 6) .................. 4

– Suprahumeral horns absent or not prominent, apex blunt ( Durante & Susini 2017: fig. 2) ........... 18

4. Posterior pronotal process quite slender in lateral view without evident nodes ............................... 5

– Posterior pronotal process in lateral view with evident nodes ......................................................... 6

5. Suprahumeral horns globose (more clearly visible in frontal view) ( Boulard 1969: fig. 3) ............... ..................................................................................................... Hamma cinnameus Boulard, 1969 View in CoL

– Suprahumeral horns conical ............................................................................................................. 7

6. Suprahumeral horns very large, posterior process heart-shaped in dorsal view ( Boulard 1968: figs 14–15) ................................................................................... Hamma fabulosum Boulard, 1968 View in CoL

– Suprahumeral horns smaller, posterior process not heart-shaped in dorsal view ............................. 8

7. Pterostigma twice as long as broad ( Boulard 1968: figs 8, 16) ...... Hamma capeneri Boulard, 1968 View in CoL

– Pterostigma three times as long as broad ( Durante & Susini 2017: fig. 2) ......................................... ......................................................................................... Hamma cupreum Durante & Susini, 2017

8. Pronotum tuberculate with reddish tubercles ( Buckton 1905: pl. 21 fig. 3) ....................................... ....................................................................................................... Hamma nodosum Buckton, 1905 View in CoL

– Pronotum smooth or tuberculate with black tubercles ..................................................................... 9

9. Suprahumeral horns upturned ( Boulard 1968: figs 10–11) ......... Hamma brevicornis Boulard, 1968 View in CoL

– Suprahumeral horns laterad ............................................................................................................ 10

10. Posterior process with terminal node large and clearly rounded in dorsal view .............................11

– Posterior process with terminal node quite slender, not rounded in dorsal view ( Capener 1971: fig. 25) ........................................................................................... Hamma robustum Capener, 1971 View in CoL

11. Suprahumeral horns about half as long as pronotal width (dorsal view) ( Bayendi Loudit et al. 2014: fig. 7) ............................................................................................................................................... 12

– Suprahumeral horns about ¼ to ⅓ as long as pronotal width (dorsal view) ( Bayendi Loudit et al. 2014: fig. 9) ..................................................................................................................................... 17

12. Posterior process V-shaped in lateral view between second and fourth node ( Fig. 1 View Fig ) ................... 13

– Posterior process straight in lateral view between second and fourth node ( Vignon 1930: fig. 673) .......................................................................................................... Hamma rectum ( Vignon, 1930)

13. Thorax entirely black ...................................................................................................................... 14

– Thorax predominantly brown ......................................................................................................... 16

14. Suprahumeral horns straight in dorsal view ................................................................................... 15

– Suprahumeral horns curved backwards in dorsal view ( Boulard 1968: fig. 13) ................................ .............................................................................................................. Hamma heimi Boulard, 1968 View in CoL

15. Pterostigma as long as broad ( Distant 1916b: fig. page 328) ........ Hamma grahami (Distant, 1916) View in CoL

– Pterostigma about three times as long as broad ( Fig. 1 View Fig ) .............................. Hamma nigrum sp. nov.

16. Caudal node of the posterior process half the width of the head in dorsal view ( Fig. 2 View Fig ) ................... ..................................................................................................................... Hamma spinellii sp. nov.

– Caudal node of the posterior process ⅔ the width of the head in dorsal view ( Fig. 3 View Fig ) ...................... .................................................................................................................. Hamma caneparii sp. nov.

17. Posterior process shorter than the tegmina, suprahumeral horns with short, stout terminal spine ( Bayendi Loudit et al. 2014: fig. 9) ..... Hamma boulardi Bayendi Loudit, Durante & Susini, 2014

– Posterior process as long as the tegmina, suprahumeral horns with slender terminal spine ( Capener 1971: figs 17–19) .......................................................................... Hamma spinosum Capener, 1971 View in CoL

18. Posterior process in dorsal view with large terminal node ............................................................. 19

– Posterior process in dorsal view with very small terminal node .................................................... 20

19. Posterior process heart-shaped, almost as large as the metopidium in dorsal view ( Capener 1971: fig. 22) ........................................................................................ Hamma ugandensis Capener, 1971 View in CoL

– Posterior process roundish, about half as large as the metopidium in dorsal view ( Durante & Susini 2017: fig. 2) ...................................................................... Hamma sandrinei Durante & Susini 2017

20. Posterior process slender in lateral view ........................................................................................ 21

– Posterior process quite strong in lateral view ( Distant 1916a: fig. page 158) .................................... ........................................................................................................ Hamma pattersoni Distant, 1916 View in CoL

21. Flanks of the pronotal helmet and thoracic pleurae covered in white hairs; posterior process with lateral carinae ( Boulard 1968: figs 2, 9) ........................................... Hamma simplex Boulard, 1968 View in CoL

– No presence of white hairs; posterior process without lateral carinae ( Capener 1972: figs 198–200) ..................................................................................................... Hamma pygmaeum Capener, 1972 View in CoL

The following species are here considered to be part of a well-defined group, characterized by a similar exterior morphology (especially well-pronounced suprahumeral horns; pronotal posterior process with four nodes; third node of the posterior process anchor-shaped in dorsal view; welldeveloped terminal spine on the posterior process; wings with dark pattern). We include also Hamma heimi Boulard, 1968 .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Membracidae

Loc

Hamma Buckton, 1905

Durante, Antonio, Loudit, Sandrine Mariella Bayendi & Susini, Antonio 2021
2021
Loc

Hamma cupreum

Durante A. & Susini A. 2017: 8
2017
Loc

Hamma sandrinei

Durante A. & Susini A. 2017: 8
2017
Loc

Hamma pygmaeum

Capener A. L. 1972: 51
1972
Loc

Hamma robustum

Capener A. L. 1971: 29
1971
Loc

Hamma spinosum

Capener A. L. 1971: 27
1971
Loc

Hamma ugandensis

Capener A. L. 1971: 28
1971
Loc

Hamma cinnameus

Boulard M. 1969: 107
1969
Loc

Hamma brevicornis

Boulard M. 1968: 944
1968
Loc

Hamma capeneri

Boulard M. 1968: 941
1968
Loc

Hamma fabulosum

Boulard M. 1968: 946
1968
Loc

Hamma heimi

Boulard M. 1968: 945
1968
Loc

Hamma rectum

Capener A. L. 1968: 108
1968
Loc

Hamma rectum

Boulard M. 1968: 946
1968
Loc

Hamma simplex

Boulard M. 1968: 942
1968
Loc

Hamma recta

Metcalf Z. P. & Wade V. 1965: 506
1965
Loc

Hamma grahami (Distant)

Capener A. L. 1955: 376
1955
Loc

Hamma kilossae

Metcalf Z. P. & Wade V. 1965: 506
Dlabola J. 1945: 156
1945
Loc

Amitrochates rectus

Vignon P. 1930: 409
1930
Loc

Hamma mabirensis

China W. E. 1923: 463
1923
Loc

Amitrochates grahami

Distant W. L. 1916: 328
1916
Loc

Hamma pattersoni

Distant W. L. 1916: 158
1916
Loc

Hamma nodosum

Buckton G. D. 1905: 330
1905
Loc

Hamma nodosa

Buckton G. D. 1905: 330
1905
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