Megaselia tubuslonga Disney & Karimzadeh sp. n.

(Figs 38–50)

Diagnosis. In Disney (1989) ’s key to the males of the British species this runs to couplet 30 but neither option fits. 2 subsequently described species also don’t fit. Likewise with similar specie from elsewhere. The single pair of supra-antennal bristles and lack of anterolateral bristles distinguishes our species from most Megaselia species.

Description. Male. Frons as Fig. 38, with a single pair of supra-antennal bristles and lack of anterolateral bristles. Fig. 39, postpedicels, palps and proboscis. Fig. 40, a palp with its SPS vesicles. Fig. 41, proboscis from below. Fig. 42, side of thorax with a dozen hairs and a bristle on the mesopleuron and 2 notopleural bristles. Scutellum with 4 bristles. Abdomen as Fig. 43, there are hairs on segments 5 and 6 only of the venter. Hypopygium as Figs 44 and 45, there being vestigial hypandrial lobes only. Front tibia and tarsus as Fig. 46, with a near dorsal palisade on segments 1–5 of the tarsus. Fig. 47, mid tibia and segments 1 and 2 of tarsus. Fig. 48, hind femur. Wing (Fig. 49) 1.52 mm long. Costal index 0.41. Costal ratios 8.1/2.6/1. Sc runs to R1. Costal cilia 0.09 mm long. No hair at base of vein3. With half a dozen axillary bristles (Fig. 50) the longest being 0.07 mm long. Halteres brown.

Material examined. Holotype: IRAN • 1 ♂; Esfahan province, Mobarakeh, Arazi; 32.4036°N, 51.6097 E; alt. 1646 m a.s.l.; 14 Sep. 2022; J. Karimzadeh leg.; reared from larvae of Spodoptera exigua feeding on cauliflower; UCMZ, 26–97; deposited in UCMZ (Cambridge, UK).

Etymology. Named after the anal tube (tubus) being long (longa).