Chalcis, Fabricius, 1787

Saguiah, Pâmella Machado, Molin, Ana Dal & Tavares, Marcelo Teixeira, 2020, The South American species of Chalcis Fabricius (Hymenoptera: Chalcididae), Zootaxa 4885 (3), pp. 353-383: 355-356

publication ID

https://doi.org/10.11646/zootaxa.4885.3.3

publication LSID

lsid:zoobank.org:pub:4DA945AD-653E-4E8A-A33D-D52E2F9E44D3

DOI

http://doi.org/10.5281/zenodo.4330383

persistent identifier

http://treatment.plazi.org/id/039B87F3-FFC0-BB70-FF6F-FA0EFA36FCBC

treatment provided by

Plazi

scientific name

Chalcis
status

 

Key to species of Chalcis  from South America based on females

1 Mesepisternum mostly smooth and shiny over least upper quarter ( Fig. 11eView FIGURE 11); mesotibial spur distinctly longer than half width of mesotibial apex; outer face of metafemur with interstices moderately to very wide, smooth and shiny ( Figs 12aView FIGURE 12, 19eView FIGURE 19); tarsal claws falcate ( Figs 3fView FIGURE 3, 11fView FIGURE 11).............................................................................. 2

- Mesepisternum mostly sculptured ( Figs 5eView FIGURE 5, 8eView FIGURE 8, 14eView FIGURE 14); mesotibial spur at most as long as half width of mesotibial apex; outer face of metafemur with interstices narrow and sculptured, at least finely coriaceous ( Figs 1fView FIGURE 1, 6bView FIGURE 6); tarsal claws slightly curved ( Figs 1eView FIGURE 1, 6aView FIGURE 6, 15aView FIGURE 15).......................................................................................... 5

2 Antennal anellus shorter than wide ( Fig. 11dView FIGURE 11); propodeum with anterosublateral area areolate-rugose ( Fig. 12bView FIGURE 12); protarsomeres 4 and 5 without a pair of peg-like spines ventrally; Fu1 1.6× as long as Fu2 ( Fig. 11dView FIGURE 11); hind leg and gaster dark amber ( Figs 11a, bView FIGURE 11); hypopygial median projection of female apically weakly sclerotized, translucent, and without dense set of short appressed bristles ( Fig. 12cView FIGURE 12).................................................................. Chalcis periotoi  sp. nov.

- Antennal anellus longer than wide ( Figs 3eView FIGURE 3, 17dView FIGURE 17, 19dView FIGURE 19); propodeum with anterosublateral area mostly coriaceous, not areolate ( Figs 4bView FIGURE 4, 18bView FIGURE 18, 19fView FIGURE 19); protarsomeres 4 and 5 with a pair of peg-like spines ventrally ( Figs 3fView FIGURE 3, 17eView FIGURE 17); Fu1 at most 1.5× as long as Fu2 ( Figs 3eView FIGURE 3, 17dView FIGURE 17, 19dView FIGURE 19); hind leg and gaster black or dark brown except usually with yellow spots; hypopygial median projection of female without evident weakly sclerotized apex, but with dense set of short appressed bristles ( Figs 4cView FIGURE 4, 20aView FIGURE 20)............. 3

3 Metafemur ventrally with an inner basal tooth ( Fig. 18aView FIGURE 18); petiole 5.2× as long as wide........... Chalcis quechua  sp. nov.

- Metafemur ventrally without inner basal tooth; petiole at most 4.6× as long as wide................................. 4

4 Interantennal projection with median carina extending to median ocellus ( Fig. 3dView FIGURE 3); metafemur with 13–15 ventral teeth along outer margin ( Fig. 4aView FIGURE 4); propodeum with a well-defined pentagonal areola medial to adpetiolar area, areola with a T- or Y-shaped median carina at posterior margin ( Fig. 4bView FIGURE 4)............................................ Chalcis danunciae  sp. nov.

- Interantennal projection with median carina not extending to median ocellus ( Fig. 19cView FIGURE 19); metafemur with 11 ventral teeth along outer margin ( Fig. 19eView FIGURE 19); propodeum with a narrow areola medial to adpetiolar area ( Fig. 19fView FIGURE 19).... Chalcis winstonae  sp. nov.

5 Mesosoma  entirely black ( Fig. 1bView FIGURE 1); lower face bulging above clypeus ( Fig. 1dView FIGURE 1); malar space 0.8× eye height ( Fig. 1cView FIGURE 1); metatarsomere 5 slightly longer than any of metatarsomeres 1–4 ( Fig. 2aView FIGURE 2)............................... Chalcis boi  sp. nov.

- Mesosoma  with at least some yellow markings dorsally; lower face not bulging above clypeus; malar space at most 0.7× eye height; metatarsomere 1 slightly longer than any of metatarsomeres 2–5.......................................... 6

6 Petiole 3.2–3.7× as long as wide, cylindrical ( Fig. 5aView FIGURE 5); metafemur ventrally with outer basal tooth close to second tooth ( Fig. 6bView FIGURE 6); metatibia with apical spine slender and longer than apical width of metatibia ( Fig. 6bView FIGURE 6); protarsal claws ventrally with 4 or 5 basal spines ( Fig. 6aView FIGURE 6).......................................................... Chalcis intervalensis  sp. nov.

- Petiole at most 2.6× as long as wide, with dorsal face flat ( Figs 8aView FIGURE 8, 14aView FIGURE 14); metafemur ventrally with outer basal tooth distant from second tooth ( Figs 9bView FIGURE 9, 15bView FIGURE 15); metatibia with apical spine either triangular and shorter ( Fig. 9bView FIGURE 9) or robust and longer than apical width of metatibia ( Fig. 15cView FIGURE 15); protarsal claws ventrally with 2–4 basal denticles ( Figs 9aView FIGURE 9, 15aView FIGURE 15)........................ 7

7 Antennal scape with inner face flattened ( Figs 14c, dView FIGURE 14); metafemur ventrally with 7–9 teeth along outer margin ( Fig. 15bView FIGURE 15); metatibia with apical spine robust and longer than apical width of metatibia ( Fig. 15cView FIGURE 15); tarsomeres 4 and 5 pubescent, at least laterally, and with a pair of distal setae similar to basal tarsomeres ( Fig. 14fView FIGURE 14); protarsal claws ventrally with 3 or 4 basal denticles followed by 3 peg-like setae ( Fig. 15aView FIGURE 15)............................................. Chalcis pilicauda (Cameron) 

- Antennal scape with inner face sinuous ( Fig. 8dView FIGURE 8); metafemur ventrally with 10–12 teeth along outer margin ( Fig. 9bView FIGURE 9); metatibia with apical spine triangular and about as long as apical width of metatibia ( Fig. 9bView FIGURE 9); tarsomeres 4 and 5 almost bare, mostly smooth and shiny, with inconspicuous, short and sparse pubescence ( Fig. 8fView FIGURE 8); protarsal claws ventrally with 2 or 3 basal denticles followed by 3 curved setae ( Fig. 9aView FIGURE 9)......................................... Chalcis ornatifrons (Cameron)