Triraphis

Key for the described species of Triraphis in Costa Rica with host records (mainly for females)

1. Ocell-ocular distance <1/3 of lateral ocellus width (Figs 1, 2, 3)................................................ 2

- Ocell-ocular distance ≥1/3 of lateral ocellus width (Figs 4, 5, 6)................................................. 4

2 Fore wing patterned (Fig. 112); antenna with fewer than 50 flagellomeres; hind leg yellow; first metasomal tergum with medial carina cristate.................................................................. T. simphlex Valerio, sp. nov.

- Fore wing hyaline (Figs 105, 104), number of antennal flagellomeres variable; leg color variable, first metasomal tergum variable............................................................................................... 3

3. Mesoscutum orange (Fig. 49); malar space narrower than basal width of mandible; antenna with 68–81 flagellomeres; mesonotum medial longitudinal pit tear-shaped and smooth; body length 7.4 mm; ratio of fore wing veins 3RSa/1RS between 3.10–4.18 T. guarusa Valerio, sp. nov.

- Mesoscutum yellow (Fig. 27); malar space as wide as basal width of mandible; antenna with fewer than 60 flagellomeres; medial longitudinal pit on mesonotum smooth, not tear – shaped; body length smaller (7.0 mm); ratio of fore wing veins 3RSa/ 1RS ≤ 3.60 T. cortazari Valerio, sp. nov.

4. Area below sternauli with colliculate sculpturing throughout; mesonotum bright yellow; ocell-ocular distance half of lateral ocellus width (Fig. 6)........................................................... T. paraholos Valerio, sp. nov.

- Area below sternauli variable in sculture, never withcolliculate sculpturing; mesoscutum color variable; ocell-ocular distance variable............................................................................................ 5

5. Hind leg bicolored, coxae mostly black or with brownish yellow spots present, if coxae unicolored, then tibia and/or femur with distal tip black or dark brown (the contrast in color is conspicuous) (Figs 16, 68); occipital carina clearly separated from hypostomal carina ventrally............................................................................ 6

- Hind leg unicolored, totally ellow or whitish yellow (Figs 38, 62); occipital carina variable.......................... 7

6. Angle at union of fore wing veins 2RS – 2M acute (Fig. 109); metasoma totally yellow as remainder of body except hind tibia partially black (Figs 16, 18)........................................................ T. balteus Valerio, sp. nov.

- Angle at union of fore wing veins 2RS – 2M wide (Fig. 101); metasoma totally black or with basal area of second metasomal tergum white and with semi-circular shape (Fig. 70) T. ornatus (Cresson) comb. nov.

7. Occipital carina dorsally effaced, gap length ≥ distance between exterior edges of lateral ocelli, and not fused with hypostomal carina; wings hyaline T. fasciipennis (Cresson) comb. nov.

- Occipital carina complete, if dorsally effaced then length of gap length <distance between external edges of the lateral ocelli; wings variable...................................................................................... 8

8. Propodeum with carinae as well as rugose and areolate-rugulose sculpture faint or completely absent; notauli with punctulate sculpturing; pterostigma elongate (Figs 107, 108)........................................................... 9

- Propodeum with well-defined cristate carinae and sculpturing; notauli sculpture variable; pterostigma shape variable (Figs 103, 106, 113)...................................................................................... 10

9. Head and most of palpi black or dark brown, remainder of body yellow (Fig. 59); notauli anterior half smooth, otherwise punctulate.................................................................... T. melasops Valerio, sp. nov.

- Head, palpi and remainder of body yellow (Fig. 29); notauli punctulate throughout........... T. defectus Valerio, sp. nov.

10. Angle at union of fore wing veins 2RS and RS+Mb wide (Figs 103, 102)....................................... 11

- Angle at union of fore wing veins 2RS and RS+Mb acute (Figs 106, 113)....................................... 12

11. Fore wings patterend (Fig. 103); lineate sculpturing on first tergum identical to that on terga 2 – 3; malar space wider than basal width of mandible; length of hypopygium between 0.82 – 1.01 mm ......................... T. chinusi Valerio, sp. nov.

- Fore wings hyaline (Fig. 102); lineate sculpturing on terga 1 – 3 not equal in separation and density on the three terga; malar space subequal to basal width of mandible; length of hypopygium between 0.56 – 0.78 mm .. T. fusciceps (Cresson) comb. nov.

12. Clypeus with a long setae which is longer than length of oral opening (Fig. 81); first flagellomere as long as wide or nearly so; wings hyaline (Fig. 113).......................................................... T. prolixus Valerio, sp. nov.

- Clypeus with setae shorter than length of oral opening; first flagellomere clearly longer than wide; wings variable...... 13

13. Head light brownish yellow, remainder of body yellow; ratio of fore wing veins 3RSa/1RS> 4; lineate sculpturing on tergum 1 more widely spaced and less dense than that on tergum 2 (Figs 58, 100) 14

- Head and body yellow or whitish yellow; ratio of fore wing veins 3RSa/1RS <3.9; lineate sculpturing on tergum 1 variable in its arragement in comparison with tergum 2.............................................................. 15

14. Fore wing with distal 1/3 infumate with infumate spot at vein 1 – CUa; ocell-ocular distance = 1/3 lateral ocellus width (Fig. 106); propleuron dorso-lateral area with well-defined colliculate sculpturing anterirorly, remainder nitid.............................................................................................. T. ikelosops Valerio, sp. nov.

- Fore wing hyaline or with light yellow color (Fig. 114); ocular – ocellar distance>1/3 of lateral ocellus width (Fig. 12); propleuron dorso-lateral area medially with weak colliculate sculpturing, remainder nitid............... T. willei Valerio, sp. nov.

15. Basal lobe of tarsal claw wide, short and rounded at tip; propodeum with spiracles sub – oval, and first lateral areas of propodeum with fine granulate sculpturing present, remainder with spaced areolate-rugulose and faint colliculate sculpturing.......................................................................... T. areatus (Enderlein) comb. nov

- Basal lobe of hind tarsal claws with an acute and elongate tip; propodeum scultpture and spiracle shape variable........ 16

16. Ocell-ocular distance/width of lateral ocellus>0.5x (Fig. 7); between 28 – 33 antennal flagellomeres; length of hind wing vein m+cu between 0.34 – 0.37 mm T. sicbaios Valerio, sp. nov.

- Ocell-ocular distance/width of lateral ocellus <0.5; between 35 – 38 antennal flagellomeres; length of hind wing vein m+cu between 0.56 – 0.65 mm ............................................................. T. baios Valerio, sp. nov.