Dissomphalus Ashmead 1893
Creators: name: Colombo, Wesley D.
name: Alencar, Isabel D. C. C.
name: Limeira-De-Oliveira, Francisco
name: Azevedo, Celso O.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Bethylidae
Dissomphalus

description: Key to Dissomphalus males of the Cerrado, Caatinga and Northern relicts of the Atlantic Forest, Brazil
1. Tergal process absent (amplus species-group)............................................................... 2
- Tergal process present (Figs. 13, 18, 22).................................................................... 3
2. Mandible bidentate; posterior hypopygeal margin straight; aedeagal ventral ramus shorter than dorsal body (Figs 5–8).......................................................................... D. boitata Colombo & Azevedo sp. nov.
- Mandible tridentate; posterior hypopygeal margin weakly concave; aedeagal ventral ramus longer than dorsal body (Figs 9– 11)................................................................... D. boto Colombo & Azevedo sp. nov.
3. Tergal process located medially (Fig. 61)................................................................... 4
- Tergal process located laterally (Figs. 13, 18, 22)............................................................. 9
4. Tergal process with one pair of conspicuous depressions, transversally elliptical, tubercle present, directed each other (vallensis species-group) (Fig. 61)................................................................................ 5
- Tergal process with one pair of conspicuous depressions, never transversally elliptical, tubercle present, never directed each other................................................................................................ 6
5. Parameral apex convex and oblique; aedeagal ventral ramus as long as aedeagal dorsal body; inner lobe of aedeagal dorsal body never setose............................................................... D. bifurcatus Azevedo, 1999
- Parameral apex never convex and oblique; aedeagal ventral ramus shorter than aedeagal dorsal body; inner lobe of aedeagal dorsal body setose (Figs 60–65)........................................... D. torem Colombo & Azevedo sp. nov.
6. Tufts of tergal process linear and horizontal (linearis species-group)......................... D. linearis Azevedo, 1999
- Tufts of tergal process neither linear nor horizontal........................................................... 7
7. Tergal process with large tubercles; apex of aedeagal dorsal body concave; apex of aedeagal ventral ramus with row of small ventral teeth (longiclypeus species-group)............................................ D. scamatus Azevedo, 1999
- Tergal process without tubercles; apex of aedeagal dorsal body never concave; apex of aedeagal ventral ramus without row of small ventral teeth..................................................................................... 8
8. Tergal process with depression shallow, tufts large; aedeagal dorsal body nearly as long as ventral ramus, apex with two large teeth (apertus species-group)..................................................... D. subpilosus Azevedo, 1999
- Tergal process with depression deep; aedeagal dorsal body much longer than ventral ramus, apex without two large teeth (altivolans species-group)............................................................ D. megomphalus Evans, 1969
9. Aedeagal ventral ramus very longer than dorsal body, tubular, wide, rounded apex, without apical filament (brasiliensis species-group).......................................................... D. tubulatus Redighieri & Azevedo, 2006
- Aedeagal ventral ramus never tubular (Figs. 15, 20, 24)...................................................... 10
10. Aedeagal ventral ramus with apical filament (microstictus species-group)................... D. microstictus Evans, 1969
- Aedeagal ventral ramus without apical filament (Figs. 15, 20, 24).............................................. 11
11. Tergal process with callus; volsella with small basal projection (Figs 80–84)....................................................................................................... D. matintaperera Colombo & Azevedo sp. nov.
- Tergal process without callus; volsella without such projection................................................. 12
12. Tergal process with one pair of conspicuous depressions, tubercle present, pit on top, lateral margin setose (Figs 71–75)......................................................................... D. caipora Colombo & Azevedo sp. nov.
- Tergal process not as above............................................................................. 13
13. Tergal process with depression deeply excavated, depressions partially covered by flap........................................................................................................ D. ubracus Brito & Azevedo, 2017
- Tergal process not deeply excavated, depressions not covered by flap........................................... 14
14. Pits of tergal process drop-shaped, sharp anteriorly and rounded posteriorly (guttus species-group).................................................................................................... D. latimerus Azevedo, 2003
- Pits of tergal process never drop-shaped, usually circular..................................................... 15
15. Tuft of tergal process with one distinct long seta (gilvipes species-group) (Fig. 27)................................. 16
- Tuft of tergal process without such seta................................................................... 18
16. Median clypeal lobe duckbill-shaped; gena with one pair spines (Figs 25–29)........ D. irupe Colombo & Azevedo sp. nov.
- Median clypeal lobe not duckbill-shaped; gena without spines................................................. 17
17. Notauli complete; apex of dorsal body narrowed in lateral view............................... D. gilvipes Evans, 1979
- Notauli incomplete or absent; apex of dorsal body wide in lateral view..................... D. krombeini Azevedo, 1999
18. Depressions of tergal process inclined and linear (rufipalpis species-group)...................... D. infissus Evans, 1969
- Tergal processes without depressions or if present never inclined and linear....................................... 19
19. Depressions of tergal process ovoid, deep and large, about 0.5 × as long as tergite, rim usually setose (bicavatus species-group)................................................................................................... 20
- Depressions of tergal process not as above................................................................. 22
20. Aedeagal basal process without median tooth........................................ D. geniculatus Azevedo, 2001
- Aedeagal basal process with median tooth................................................................ 21
21. Aedeagal basal process wide.................................................... D. lobisserratus Azevedo, 2001
- Aedeagal basal process narrow and sharpened....................................... D. curvilongus Azevedo, 2001
22. Tubercles of tergal process large with high rim and tuft densely setose (conicus species-group) (Figs. 13, 18, 22)......... 23
- Tubercles of tergal process small........................................................................ 29
23. Basivolsela with thick, conspicuous bristles................................ D. laminaris Redighieri & Azevedo, 2004
- Basivolsela without such bristles....................................................................... 24
24. Outer lobe of aedeagal dorsal body with warts............................. D. verrucosus Redighieri & Azevedo, 2004
- Outer lobe of aedeagal dorsal body without warts.......................................................... 25
25. Aedeagal ventral ramus with apical half translucent, narrow, apex with two horn-shaped expansions................................................................................................... D. cervoides Azevedo, 2003
- Aedeagal ventral ramus without such expansions............................................................ 26
26. Basivolsella with large, wide, rounded expansion directed upward at inner margin; ventral margin of aedeagal ventral ramus with deep median emargination; dorsal margin of outer lobe of aedeagal dorsal body strongly conical in lateral view........................................................................................ D. conicus Azevedo, 2003
- Basivolsella without such expansion; aedeagal ventral ramus without emargination; dorsal margin of outer lobe of aedeagal dorsal body not conical in lateral view.................................................................... 27
27. Parameral apex bifurcated; aedeagal ventral ramus longer than dorsal body, with small basal extension (Figs 12–16)........................................................................... D. curupira Colombo & Azevedo sp. nov.
- Parameral apex not bifurcated; aedeagal ventral ramus equal or shorter than dorsal body, without basal extension......... 28
28. Mandible with three teeth; parameral apex serrated; aedeagal ventral ramus as long as the dorsal body (Figs 21–24)............................................................................... D. saci Colombo & Azevedo sp. nov.
- Mandible with two teeth; parameral apex rounded; aedeagal ventral ramus shorter than dorsal body (Figs 17–20).................................................................................. D. iara Colombo & Azevedo sp. nov.
29. Depression of tergal process with edge without thick and conspicuous bristles (punctatus species-group) (Figs. 31, 35, 39)...................................................................................................... 30
- Depression of tergal process with edge with thick and conspicuous bristles....................................... 33
30. Median clypeal lobe trapezoidal; inner margin of basivolsella with large rounded callus.............. D. napo Evans, 1979
- Median clypeal lobe tridentate; inner margin of basivolsella without callus....................................... 31
31. Mandible with two teeth; parameral apex straight (Figs 38–41)................ D. jurupari Colombo & Azevedo sp. nov.
- Mandible with three teeth; parameral apex rounded.......................................................... 32
32. Posterior hypopygeal margin weakly concave; parameral apex bifurcated in ventral view (Figs 30–33)..................................................................................... D. acutipupu Colombo & Azevedo sp. nov.
- Posterior hypopygeal margin straight; parameral apex not bifurcated in ventral view (Figs 34–37)....... D. cuca Colombo & Azevedo sp. nov.
33. Tubercles of tergal process slightly directed mesad (tuberculatus species-group)............... D. plaumanni Evans, 1964
- Tubercles of tergal process never directed mesad............................................................ 34
34. Paramere never peanut-shaped or S-shaped (setosus species-group)............................................. 35
- Paramere peanut-shaped or S-shaped (Figs. 68, 69).......................................................... 39
35. Dorsal margin of paramere with apical spine; aedeagal ventral ramus with apical half divided into two long tubular rami.......................................................................... D. magnus Redighieri & Azevedo, 2006
- Dorsal margin of paramere without spine; aedeagal ventral ramus without such rami............................... 36
36. Mandible with four teeth............................................................................... 37
- Mandible with two or three teeth........................................................................ 38
37. Median clypeal lobe trapezoidal, median tooth straight, higher in lateral view; outer lobe of aedeagal dorsal body leaf-shaped (Figs 47–50)........................................................ D. capelobo Colombo & Azevedo sp. nov.
- Median clypeal lobe tridentate, median tooth rounded, with posterior and lateral sides high and lower anterior and central regions; outer lobe of aedeagal dorsal body never leaf-shaped (Figs 51–55)....... D. iracema Colombo & Azevedo sp. nov.
38. Mandible two teeth; median clypeal lobe undefined; posterior hypopygeal margin concave (Figs 42–46).................................................................................... D. boibumba Colombo & Azevedo sp. nov.
- Mandible with three teeth; median clypeal lobe trapezoidal; posterior hypopygeal margin straight (Figs 56–59).............................................................................. D. joaquinae Colombo & Azevedo sp. nov. 39. Median clypeal lobe trilobate; posterior hypopygeal margin weakly concave; paramere peanut-shaped (Figs 66–70)............................................................................ D. boiuna Colombo & Azevedo sp. nov.
- Median clypeal lobe undefined; posterior hypopygeal margin straight; paramere S-shaped (Figs 76–79)................................................................................... D. mapinguari Colombo & Azevedo sp. nov.
description: Published as part of Colombo, Wesley D., Alencar, Isabel D. C. C., Limeira-De-Oliveira, Francisco & Azevedo, Celso O., 2018, New species and records of Dissomphalus Ashmead (Hymenoptera, Bethylidae) from Cerrado, Caatinga and relicts of the Atlantic Forest from northeastern Brazil, pp. 1-40 in Zootaxa 4462 (1) on pages 4-6, DOI: 10.11646/zootaxa.4462.1.1, http://zenodo.org/record/1441364