Trichiscus

Azevedo, Celso O., 2014, Revision of Trichiscus Benoît, 1956 (Hymenoptera, Bethylidae), Zootaxa 3802 (3), pp. 318-334 : 319

publication ID	https://doi.org/ 10.11646/zootaxa.3802.3.2
publication LSID	lsid:zoobank.org:pub:69017751-B8BD-4817-948D-FC58A8FCE67A
DOI	https://doi.org/10.5281/zenodo.6128250
persistent identifier	https://treatment.plazi.org/id/03ABBA7C-FFCA-FFC5-FF16-3D1DFA0DF884
treatment provided by	Plazi
scientific name	Trichiscus
status

Treatment

Key to species of Trichiscus

1. Hypopygeal posterior margin straight or concave, but not emarginated ( Figs 13, 15, 21 View FIGURES 10 – 22 ).............................. 2

- Hypopygeal posterior margin distinctly emarginated ( Figs 11, 16, 20 View FIGURES 10 – 22 )............................................ 4

2. Basivolsella with spine-shaped median expansion; parameral basal expansion short ( Figs 43 View FIGURES 42 – 53 , 66 View FIGURES 63 – 71 )...................... 3

- Basivolsella without spine-shaped expansion; parameral basal expansion longer than half length of paramere ( Fig. 33 View FIGURES 29 – 41 )............................................................................................. T. denisi sp. nov.

3. Parameral basal expansion with apical spine ( Fig. 64 View FIGURES 63 – 71 ).............................................. T. ohli sp. nov.

- Parameral basal expansion without apical spine ( Fig. 43 View FIGURES 42 – 53 )...................................... T. copelandi sp. nov.

4. Emargination of hypopygeal posterior margin short ( Figs 10, 22 View FIGURES 10 – 22 )................................................ 5

- Emargination of hypopygeal posterior margin deep ( Figs 14, 20 View FIGURES 10 – 22 )................................................ 7

5. Apical margin of clypeus narrow; aedeagal ventral ramus without spine-shaped apex ( Figs 70, 71 View FIGURES 63 – 71 ).......... T. jimi sp. nov.

- Apical margin of clypeus thick; aedeagal ventral ramus with spine-shaped apex......................... ( Figs 25 View FIGURES 23 – 28 , 68 View FIGURES 63 – 71 )6

6. V entral lobe of aedeagal dorsal body with sharpened apex; outer lobe of aedeagal dorsal body with quadrate expansion ( Fig. 68 View FIGURES 63 – 71 ).................................................................................... T. camargoi sp. nov.

- Ventral lobe of aedeagal dorsal body with rounded apex; outer lobe of aedeagal dorsal body without quadrate expansion ( Fig. 25 View FIGURES 23 – 28 )................................................................................... T. suzannae Benoît

7. Emargination of hypopygeal posterior margin short and wide ( Fig. 16 View FIGURES 10 – 22 )............................. T. mourei sp. nov.

- Emargination of hypopygeal posterior margin deep and narrow ( Fig. 17 View FIGURES 10 – 22 ).......................................... 8

8. Basivolsella with large serrate spine-shaped basal expansion ( Figs 37 View FIGURES 29 – 41 , 51 View FIGURES 42 – 53 )......................................... 9

- Basivolsella without spine-shaped basal expansion ( Fig. 61 View FIGURES 54 – 62 )................................................... 10

9. Basivolsellar basal expansion not reaching base of digitus ( Fig. 37 View FIGURES 29 – 41 )................................. T. briani sp. nov.

- Basivolsellar basal expansion reaching base of digitus ( Fig. 51 View FIGURES 42 – 53 ).................................... T. lynnae sp. nov.

10. Basal parameral expansion ill-defined, virtually absent ( Fig. 61 View FIGURES 54 – 62 )................................ T. zuparkoi sp. nov.

- Basal parameral expansion conspicuous ( Figs 30 View FIGURES 29 – 41 , 58 View FIGURES 54 – 62 )........................................................ 11

11. Aedeagal ventral ramus with spine-shaped apex ( Figs 28 View FIGURES 23 – 28 , 59 View FIGURES 54 – 62 ).................................................. 12

- Aedeagal ventral ramus with apex not spine-shaped ( Figs 31 View FIGURES 29 – 41 , 48 View FIGURES 42 – 53 )............................................... 13

12. Basivolsella with two apical spines ( Figs 57–58 View FIGURES 54 – 62 )................................................. T. luboi sp. nov.

- Basivolsella without apical spines ( Figs 26–27 View FIGURES 23 – 28 )................................................. T. wittei (Benoît)

13. Basal parameral expansion subconical ( Fig. 47 View FIGURES 42 – 53 ); ventral pair and dorsal body of aedeagal dorsal body serrulate ( Fig. 48 View FIGURES 42 – 53 ).......................................................................................... T. normani sp. nov.

- Basal parameral expansion rectangular ( Fig. 30 View FIGURES 29 – 41 ); ventral pair and dorsal body of aedeagal dorsal body not serrulate ( Fig. 31 View FIGURES 29 – 41 )........................................................................................ T. noorti sp. nov.