Aerumnosa impar, Vilkamaa & Rudzinski & Burdíková & Ševčík, 2018

Vilkamaa, Pekka, Rudzinski, Hans-Georg, Burdíková, Nikola & Ševčík, Jan, 2018, Phylogenetic position of Aerumnosa Mohrig (Diptera, Sciaridae) as revealed by multigene analysis, with the description of four new Oriental species, Zootaxa 4399 (2), pp. 248-260 : 255-256

Aerumnosa impar sp. n.

( Fig. 3 A )

Material studied. Holotype male. MALAYSIA, Sabah, Bukit Monkobo , 5°48’N, 116°58’E, 900 m, Malaise trap, 7– 13.VIII.1987, A.H. Kirk-Spriggs (in NMW).

Description. Male. Head. Brown, antenna Slightly paler than face, maxillary palpuS Very pale brown. Eye bridge 3 facetS wide, medially without facetS. Face with 8 Setae. ClypeuS non-SetoSe. MouthpartS Strongly reduced.

Maxillary palpuS with one Segment in two partS Separated by a Suture, baSal part (1St Segment) with 4 Sharp Setae and a large dorSal patch of SenSilla, apical part (2nd Segment) with 8 truncate SenSilla. Antenna Short, body of 4th antennal flagellomere 1.9x aS long aS wide, the longeSt Setae Shorter, aS long aS the width of flagellomere, neck Shorter than broad. Thorax. UnicolorouS dark brown, Setae dark. Anterior pronotum with 4 Setae. ProepiSternum with 8 Setae. Scutellum with 4 moderately long and many Short Setae. Wing. FumoSe brown, darker around fore VeinS. Length 3.4 mm. WingS in poor condition in the Specimen Studied. Anal lobe rather large. VeinS diStinct, eSpecially CuA. r-m much longer than bM. StCuA longer than bM. R4+5 with Some Ventral Setae, M, CuA, bM and StCuA non-SetoSe, r-m with 6 Setae. Haltere pale brown, Stem Short. Legs. Brown. Coxal Setae dark. Tibiae without SpinoSe Setae. Fore tibial organ with large patch of dark Setae in Shallow depreSSion. Fore tibial Spur Shorter than tibial width. Abdomen. Brown, Setae dark, long and rather fine. Hypopygium, Fig. 3 A . Brown, aS abdomen, broad. Gonocoxa aS long aS gonoStyluS. Gonocoxae fuSed, the intercoxal area long, baSomedially without intercoxal lobe, apically with medial darker area, baSal Sclerotized rim of hypopygium broken medially, Ventromedial marginS of gonocoxa diStinct, of Shallow u-Shape; gonocoxa moderately SetoSe, Setae Short and narrow at medial margin; intercoxal area Ventroapically not produced in a lobe, apicoVentral Seta not differentiated. GonoStyluS tumid, Subquadrangular, impreSSed medially, with Some elongated Ventral Setae, with two apical teeth with apical channel inSide; the apicalmoSt megaSeta perpendicular, the baSalmoSt one parallel with the meSial margin of gonoStyluS, with 5 Subapical megaSetae near the apical tooth, megaSetae Slightly curVed and hyalinouS. Tegmen longer than wide, narrowed towardS apex, apically hyalinouS, Subapically and laterally Strongly Sclerotized, with two Subapical Sclerotized StripeS, aedeagal teeth not detectable in the Specimen Studied. Aedeagal apodeme indiStinct.

Female. Unknown.

Etymology. The name iS Latin, impar , uneVen, referring to the highly diVergent apical teeth of the gonoStyluS.

Discussion. Aerumnosa impar sp. n. differS from all the other SpecieS of the genuS with two gonoStylar teeth in haVing the teeth Strongly diVergent, not Subparallel.

Figures

FIGURE 3. A, D. Hypopygium, ventral. B. 4th antennal flagellomere, frontal. C. Maxillary palpus, dorsal. A, C: Aerumnosa impar sp. n. (holotype).B, D: A. horrifica sp. n. (holotype).Scale for A 0.20 mm, for B, C and D 0.10 mm.