Enlinia Aldrich, 1933

Pollet, Marc, Leponce, Maurice, Pascal, Olivier, Touroult, Julien & Calster, Hans Van, 2018, Dipterological survey in Mitaraka Massif (French Guiana) reveals megadiverse dolichopodid fauna with an unprecedented species richness in Paraclius Loew, 1864 (Diptera: Dolichopodidae), Zoosystema 40 (21), pp. 471-491 : 486

Genus Enlinia Aldrich, 1933

DIVERSITY. — 7 species (0.8-1.5 mm).

MORPHOLOGY, ECOLOGY AND DISTRIBUTION

See Runyon & Pollet (2018).

Family MEDETERINAE Aldrich, 1905

Genus Medetera Fischer von Waldheim, 1819 ( Figs 14F ; 15A )

DIVERSITY. — 39 species (1.0- 3.6 mm).

MORPHOLOGY, ECOLOGY AND DISTRIBUTION

The third most speciose genus in Mitaraka, comprised of very small to rather large, generally dark species, often with metallic green to blue body. SLAMs yielded 25 species and nearly 75% of all specimens, whereas the 6 m long Malaise trap, sweep nets and FITs produced 12, eight and six spe-cies respectively, but in much lower numbers. Two lineages seemed well represented: the first was previously considered a separate genus, Saccopheronta Becker, 1914 , and comprises larger species often with modified fore tarsi that are found both on tree trunks and broad-leaved vegetation ( Fig. 14F ). The second lineage is composed of minute, rather dull species with an often remarkably large hypopygium ( Fig. 15A ) and most probably restricted to tree trunks. Medetera was collected at 11 sites, with most species near the drop zone (n= 12), while six species were recorded from three other sites where either SLAMs or the 6 m long Malaise trap had been in operation.

Figures

FIG. 14. — Photos of selected Mitaraka Dolichopodidae:A, Chrysotus sp. GF-010, ♂; B, Chrysotus sp. GF-021, ♂; C, Cheiromyia pennaticornis (Parent, 1931), ♂; D, Paraclius sp. GF-005, ♂; E, Pelastoneurus sp. GF-002, ♂; F, Medetera sp. GF-001, ♂. Photos: Florence Trus.

FIG. 15. — Photos of selected Mitaraka Dolichopodidae: A, Medetera sp. GF-005, ♂; B, Tachytrechus sp. GF-005, ♂; C, Thrypticus sp. GF-004, ♂; D, species sp. GF-001 of Achalcinae new genus,♂; E, species sp. GF-001 of incertae sedis, ♂; F, species sp. GF-002 of Peloropeodinae new genus,♂. Photos: Florence Trus, except for E, Camille Locatelli.