Exsul tenuis Malloch, 1923

(Figs. 7–11)

Exsul tenuis Malloch, 1923: 674 . Holotype male, deposited at Smithsonian Institution, National Museum of Natural History, Department of Entomology [not examined]. Type-locality: New Zealand, Milford Sound. 24.xii.1920. Collector C. Fenwick.

Diagnosis. Dorsocentrals 2+4. Wings similar to female of E. singularis, although hyaline. This species is similar to E. singularis differing as follows:

Male. Body length: 11 mm; wing: 13 mm

General coloration. Wing veins with a remarkable brown suffusion along their length and hyaline in females.

Head. Frontal row with six pairs of setae.

Thorax. Dorsocentral setae 2+4. Legs without intense pilosity; fore and hind tibia with a posterior median seta.

Abdomen. Cylindrical.

Terminalia. Hypandrium plate-like. Aedeagus apex enlarged; distiphallus complex with sclerotized structure and distal membrane developed; gonopod relatively short and paramere developed and subpointed (Fig. 7). Sternite 5 setulose, subtriangular (Fig. 8). Cercal plate developed with posterior concavity (Fig. 9).

Female. Length: 11 mm, wing: 13 mm

Similar to male, except for wings hyaline and abdomen elliptic.

Ovipositor. Moderately long, with large tergites with setae on posterior edge. Sternite 6 thick and 7 arrowshape with five setae (Fig. 10–11).

Material examined. NEW ZEALAND: McKinnon, 28.xii.1919, Tillyard col., Malloch det. [13, USNM 13 (nº85.710), AMNZ]. Milford Sound, 24.xii.1920, C. Fenwick col., Sabrosky det., [Allotype, 1Ƥ, USNM]. McKinnon Pass, 29–30.xii.1919, [no collector name] [43 (nº 81.802, 81.803, 81.804 and 85.709), 2Ƥ (nº 81.805 and 81.806) AMNZ].