Fulgenta freidbergi, Macgowan, Iain, 2017

Macgowan, Iain, 2017, A new genus and species within the tribe Earomyiini (Diptera, Lonchaeidae), Zootaxa 4216 (3), pp. 201-224 : 212-213

Fulgenta freidbergi sp. nov.

( Figs. 23–26 )

Description. Male: Head: Eyes bare. Frons shining black with fine microsculpture, frontal and interfrontal setulae very short. Orbital plate shining black, bare apart from orbital seta. Lunule; base colour orange, densely covered in silver pollinosity, face and parafacials moderately silver pollinose. Anterior genal setulae in a single row along mouth margin. Antennae black, 1st flagellomere obscurely brown at extreme medial base, length to depth ratio 1.6:1. Arista with short plumosity; ratio of plumosity at maximum extent to depth of 1st flagellomere 0.5:1.

Thorax: mesonotum and sclerites dark emerald-green. Anepisternum with 1anterodorsal setae and 2 posterior setae. Katepisternum with 1 seta, a few scattered setulae anterior to it. 1 seta on both proepimeron and proepisternum. Scutellum, disc slightly lighter green than mesonotum, on margin with 1 setulae between lateral and apical setae on left, otherwise bare. Calypteres pale with whitish fringes. Wing very slightly fumose, wing length 2.9mm. Legs black, basal and second tarsomeres clear yellow, apical tarsomeres darkened.

Male terminalia: Epandrium; in lateral view 9th and 10th terga not completely fused, 9th terga rather triangular in shape joined to anterior surface of, and almost as wide as 10th terga; 10th terga 4x as wide as high, rather sinuous on anterior and posterior margins; cerci elongated laminate structures, in-turned at margins, lying posterior to epandrium.

In posterior view cerci relatively large, fused centrally, gradually expanding from base to apex, covered in numerous fine setulae. Square at apex apart from a small finger-like projection arising at medial apex. Medial lobe of epandrium well developed and bearing scattered small spicules. Surstyli enclosed within shell of epandrium, a small setulose structure connected by a narrow tendon to base of cerci. Phallus; basal section C-shaped, rather broad, with slight pointed lateral projection at base and apex, apical section at right angles to basal, forming a narrow posteriorly directed tube.

Type material. Holotype ♂. CAMEROON; Rt. N 9, 20 Km. E. of Sangmélima , 7.xi.1987, A. Freidberg, ( TAUI).

Only known from the Holotype.

Differential diagnosis. The cerci with their medial finger-like processes are distinctive, the surstyli are moderately developed and the phallus has only very small processes apically which hardly extend beyond the shaft of the phallus. The medial lobes of the epandrium is well developed and spiculate.

Etymology. The specific epithet refers to the captor of the Holotype.

Figures

FIGURES 23 – 26. Fulgenta freidbergi sp. nov. 23. Epandrium and associated structures posterior view. 24. Same, lateral view. 25. Epandrium, internal view, showing surstylus and associated structures. 26. Phallus, lateral view.