Corethrella (Corethrella) dominicana Borkent, 2008

Published, First, 2008, The Frog-Biting Midges of the World (Corethrellidae: Diptera), Zootaxa 1804, pp. 1-456 : 202-203

Corethrella (Corethrella) dominicana Borkent , new species

DIAGNOSIS: Male adult: unknown. Female adult: only fossil species of Corethrella with only setae on the wing veins (other than on the wing margin) (as in Fig. 73C).

DESCRIPTION: Male adult. Unknown.

Female adult. Habitus as in Fig. 113A. Descriptive statistics: see Tables 6–11. Head: Outline in anterior view uncertain. Number of large setae on frons between ventromedial area of ommatida uncertain. Antenna: pedicel without more elongate, stout, dorsal or dorsolateral setae; flagellomeres as in Fig. 32L; sensilla coeloconica not visible; flagellomere 13 with well-developed apical bifurcation. Clypeus shape uncertain. Mandible not visible. Palpus ( Fig. 35 AC) with segment 3 swollen apically. Thorax: Posterior portion of dorsocentral row with 2 elongate setae situated somewhat lateral to one another. Prescutal suture uncertain. Shape of anterior anepisternum uncertain; ventral portion of posterior anepisternum not differentiated from dorsal portion. Wing: Angled in amber, similar to other Corethrella in the rotunda species group; apex of R 2 basal to apex of M 1. Veins (other than wing margin) with setae. Legs: With only slender setae, lacking scales (except for some in patch of whip-like setae on posterior portion of hind tibia). Presence of thick, subapical setae on tarsomeres 1–3 uncertain. Claws of each leg equal to those of others; equal on each leg, simple (without inner teeth). Empodia thick.

Immatures. Unknown.

DISTRIBUTION AND BIONOMICS: Corethrella dominicana is known only from Dominican Republic amber (Fig. 139), dated at 19 million years old. There was a male Cecidomyiidae and a small parasitic wasp in the amber containing the holotype.

TAXONOMIC DISCUSSION: The holotype is in excellent condition, mostly opaque but with portions of the antennae, palpi and legs cleared.

TYPES: Holotype, female adult in unmounted piece of amber in storage box, labeled " HOLOTYPE Corethrella dominicana Borkent ”, “AMBER: Oligo-Miocene , Dominican Republic, AMNH no. DR-14-194, Locality: north mines, ♀ Corethrellidae ” ( AMNH).

DERIVATION OF SPECIFIC EPITHET: The name dominicana refers to the type locality in the Dominican Republic .