Ammonoencyrtus, De Santis, 1964

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 : 520

Key to Costa Rican species of Ammonoencyrtus

(Females)

1. Hind basitarsus yellow, concolorous with following tarsomeres; pedicel (Figs 1303, 1312, 1317, 1318) with a dorsal margin distinctly produced in lateral view [best seen on slide-mounted specimen]; frontovertex, above transfacial carina, with more than 20 conspicuous setae, excluding those along eye margin ................... 2

- Hind basitarsus dark brown, contrasting with following tarsomeres that are yellow or pale orange; pedicel (Fig 1323, 1331, 1336) with dorsal margin not distinctly produced in lateral view [best seen on slide-mounted specimen]; frontovertex above transfacial carina with fewer than 15 setae, excluding those along eye margin ....................................................................................................................4

2 (1) Both mesoscutum and scutellum with a strong metallic dark green and blue-green sheen; sculpture on lateral one-third or so of scutellum very shallow and superficial, quite smooth and very shiny, contrasting strongly with much deeper sculpture on mesoscutum .................................................................. hyperion sp.nov. (p. 520)

- Dorsum of thorax at most with a strong metallic sheen only on mesoscutum, scutellum orange; scutellum conspicuously sculptured, except on extreme side and apex, hardly shiny, with sculpture clearly deeper than that on mesoscutum ..................3

3 (2) Exserted part of ovipositor at least 1.5X as long as mid tibial spur, ovipositor about 2X as long as mid tibia; area above mouth margin pale orange ................................... ................................................................................... prosymnos sp.nov. (p. 522)

- Exserted part of ovipositor not longer than mid tibial spur, ovipositor usually not more than about 1.7X as long as mid tibia; area above mouth margin dark brown (Fig. 1319) ....................................................................... carolinensis (Meyer) (p. 524)

4 (1) Antenna (Fig. 1323) with sensory area on clava shorter than ventral surface of clava .... .............................................................................................. keira sp.nov. (p. 526)

- Antenna (Figs 1331, 1336) with sensory area on clava at least about 1.5X as long as ventral surface of clava ......................................................................................... 5

5 (4) All coxae dark brown, legs otherwise mostly dark brown; mesoscutum and scutellum dark brown, mesoscutum with a strong, metallic dark blue and purple sheen, scutellum somewhat duller, but with a strong metallic sheen on side and at apex. ............................................................................................. galas sp.nov. (p. 527)

- At least mid coxa orange, legs otherwise orange with dusky areas; mesoscutum orange or dusky orange with a weak to moderate dark blue and purple sheen, scutellum orange, sometimes with side and apex slightly metallic ...................................... 6

6 (5) Mesoscutum dusky orange, but with a distinct metallic purple and green, blue or blue-green sheen and contrasting quite strongly with the orange scutellum; sensory area of clava (Fig. 1336) not more than about 2.3X as long as ventral margin (measured along straight ventral part) of clava; head less than 6X as wide as frontovertex .... ......................................................................................... xanthos sp.nov. (p. 529)

- Mesoscutum concolourous with scutellum, orange and with a weak coppery purple sheen; sensory area of clava about 3X as long as ventral margin; head at least about 7X as wide as frontovertex .................................... autone sp.nov. (p. 531)