Key to the New World species of Iconella (taken from Fernandez-Triana et al. 2013):
1 Propodeum mostly smooth and polished (as in Fig. 21), except for sparse punctures on the anterior 0.2 × of propodeum, and rather small carinae radiating from median longitudinal carina; metatibia mostly yellow, at most with very small and faint brown spot on posterior 0.1 or less, and metatarsus mostly yellow, except for brown area on posterior half of first tarsomerus (Figs 17, 19, 23, 25); fore wing with most veins transparent or white, vein margins of same color than interior of vein (Figs 18, 24)... 2
– Propodeum with anterior 0.2 × covered with punctures, posterior 0.8 covered with mix of punctures, striated sculpture and carinae (as in Fig. 15); metatibia with brown to black coloration on posterior 0.2–0.4, and metatarsus mostly dark brown, except for yellowish area on anterior half of first tarsomerus (as in Fig. 33); fore wing with at least some veins with thin brown margins and interior of veins yellow to light brown (Figs 5, 11, 31)... 3
2 Pterostigma almost completely brown, with only small whitish spot anteriorly (Fig. 18); humeral complex half yellow, half brown; profemur almost completely dark brown (yellow area absent or limited to posterior 0.2); interocellar distance 2.4 × or more posterior ocellus diameter (Fig. 20); mediotergite 2 width at posterior margin 4.6 × or less its length (Fig. 22); larger species, body length (head to apex of metasoma) 3.0 mm or more, and fore wing length 3.3 mm or more. [Western and central United States: AR, AZ, CA, CO, IA, NM, OK, and WA. Hosts: Etiella zinckenella, Olycella junctolineella, Psorosina hammondi, and Ufa rubedinella (Pyralidae)]... Iconella etiellae (Viereck, 1911)
– Pterostigma mostly transparent or whitish, with only thin brown margins (Fig. 24); humeral complex yellow to white; profemur mostly yellow, dark brown area limited to anterior 0.2 or less; interocellar distance 2.1 × or less posterior ocellus diameter; mediotergite 2 width at posterior margin 5.0 × or more its length (Fig. 26); smaller size, body length (head to apex of metasoma) 3.0 mm or less, and fore wing length 3.2 mm or less. [Caribbean islands and northern part of South America: British Virgin Islands, Cayman Islands, Dominica, Grenada, Guyana, Montserrat, Puerto Rico, Saint Kitts & Nevis, Trinidad & Tobago. Host: Ancylostomia stercorea (Pyralidae)]... Iconella isolata (Muesebeck, 1955), stat. r.
3- Ocular-ocellar line 1.6 × posterior ocellus diameter; humeral complex half yellow, half brown; mediotergite 1 width at anterior margin 2.2 × or less its width at posterior margin (Fig. 13); ovipositor sheaths length 0.8 × or less metatibial length (Fig. 12); larger species, body length (head to apex of metasoma) 3.5 mm or more (rarely 3.2 mm) and fore wing length 3.5 mm or more; an extra-tropical species distributed in North America north of 40° N (Canada). [Eastern Canada: NB, ON, and QC. Host: Epinotia solandriana (Tortricidae) and, likely, Acrobasis betulella (Pyralidae)]... Iconella canadensis Fernández-Triana, 2013
- Ocular-ocellar line 2.0 × or more posterior ocellus diameter; humeral complex fully yellow to white; mediotergite 1 width at anterior margin 3.1 × or more its width at posterior margin (Figs 9, 36); ovipositor sheaths length 1.1 × metatibial length (Figs 6, 32); smaller size, body length (head to apex of metasoma) 3.0 mm or less, and fore wing length 3.3 mm or less; tropical species from Central America south of 17° N (Mexico and Costa Rica)... 4
4 Profemur mostly yellow, dark brown area limited to anterior 0.2 or less; meso- and meta- femora mostly dark brown, with proximal 0.1–0.2 yellow to orange; mesoscutellar disc sculpture centrally smooth with few, scattered punctures near margins (Fig. 36); mediotergite 2 width at posterior margin 4.1 × or less its maximum length medially (Fig. 36); body length (head to apex of metasoma) 2.9–3.0 mm; fore wing length 3.2–3.3 mm. [Costa Rica (ACG) and Mexico (Chiapas). Host: undescribed species of Phycitinae (Pyralidae)]... Iconella jayjayrodriguezae Fernández-Triana, 2013.
– Profemur dark brown on anterior half, yellow on posterior half; meso- and meta- femora usually fully dark brown to black; mesoscutellar disc sculpture mostly with punctures scattered all over disc surface (Fig. 9); mediotergite 2 width at posterior margin 4.4 × its maximum length medially (Fig. 9); body length (head to apex of metasoma) 2.7–2.8 mm; fore wing length 3.0 mm. [Costa Rica (ACG). Host: undescribed species of Spilomelinae (Crambidae)]... Iconella andydeansi Fernández-Triana, 2013
Reference: Fernandez-Triana J, Cardinal S, Whitfield J, Smith M, Janzen D (2013) A review of the New World species of the parasitoid wasp Iconella (Hymenoptera, Braconidae, Microgastrinae). ZooKeys 321: 65-87. doi: 10.3897/zookeys.321.5160