Ludesia, Noyes, 2023

Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 180

Key to Costa Rican species of Ludesia

(Females and males)

1. Wings reduced ( Figs 457, 464), fore wing not reaching half way along gaster (females). ..............................................................................................................................2

- Wings fully developed ( Fig. 462), fore wing exceeding apex of gaster (males) .............3

2 (1) Head and thorax largely black or very dark brown with a weak metallic sheen; frontovertex and posterior part of mesoscutum ( Fig. 455) completely smooth and shiny .......... .......................................................................................... hemera sp.nov. (p. 180)

- Head and thorax largely orange or orange-brown; frontovertex with distinct punctate-reticulate sculpture and virtually matt; mesoscutum ( Fig. 463) with distinct polygonally reticulate sculpture in posterior half or so .......................................... ..................................................................................... amalthea sp. nov. (p. 183)

3 (1) Frontovertex with relatively shallow imbricate-reticulate to polygonally reticulate sculpture that is about as deep as that on mesoscutum ( Fig. 456) .......................... ......................................................................................... hemera sp.nov. (p. 180)

- Frontovertex ( Fig. 468) with punctate-reticulate sculpture that is clearly deeper than sculpture on mesoscutum ( Fig. 470)............................. amalthea sp.nov. (p. 183)