Aerumnosa gemmifera, 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 : 253

Aerumnosa gemmifera sp. n.

( Fig. 2 B and C )

Material studied. Holotype male. MALAYSIA, Sabah, Poring , VIII.1999, N. Laurenne (in MZH).

Description. Male. Head. Brown, antenna concolorouS with face, maxillary palpuS Very pale brown. Eye bridge complete, 3–4 facetS wide. Face with 13 Setae. ClypeuS with 1 Seta. MouthpartS Strongly reduced. Maxillary palpuS ( Fig. 2 B ) with large 1St Segment and a reduced 2nd Segment; 1St Segment with 8 Sharp Setae and a large dorSal patch of SenSilla, 2nd Segment with 7 Short truncate SenSilla. Antenna Short, body of 4th antennal flagellomere 1.85x aS long aS wide, the longeSt Setae Shorter than the width of flagellomere, neck Shorter than broad. Thorax. UnicolorouS dark brown, Setae dark. Anterior pronotum with 5 Setae. ProepiSternum with 10 Setae. Scutellum with 4 moderately long and many Short Setae. Wing. FumoSe brown, darker around fore VeinS. Length 3.1 mm. Width/ length 0.45. Anal lobe rather large. VeinS diStinct, eSpecially CuA. R1/R 1.4. c/ w 0.65. bM and r-m Subequal in length, StM longer than fork of M. StCuA Shorter than bM. R4+5 with Some Ventral Setae, M, CuA, bM and StCuA non-SetoSe, r-m with 5 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. 2 C . Brown, Slightly darker than 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 denSely SetoSe, Setae Short and narrow at medial margin; Ventroapically not produced in a lobe, apicoVentral Seta not differentiated. GonoStyluS tumid, broader than long, Strongly impreSSed medially, with elongated Setae Ventromedially, with two apical teeth with apical channel inSide; with 2+3 Subapical megaSetae, moStly coVered by a Ventromedial lobe, megaSetae Slightly curVed and hyalinouS. Tegmen longer than broad, 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 rather long, with apical fork.

Female. Unknown.

Etymology. The name iS Latin, gemmifera , bearing a bud, referring to the bud-like 2nd Segment of the maxillary palpuS.

Discussion. In haVing a diStinct, although reduced 2nd Segment of the maxillary palpuS, Aerumnosa gemmifera sp. n. reSembleS A. noctinigra Mohrig , but haS itS gonoStyluS quite different in haVing two long, not one Short, apical tooth. By itS gonoStyluS, A. gemmifera reSembleS A. furcillata Mohrig , but haS the apical teeth of the gonoStyluS baSally oVerlapping in the Ventral View, a diStinct Ventromedial lobe on the gonoStyluS, and a narrower tegmen. Furthermore, A. gemmifera lackS the medial lobe of the gonocoxa, preSent in A. furcillata .

Figures

FIGURE 2. A, C. Hypopygium, ventral. B. Maxillary palpus, dorsolateral. A: Aerumnosa bituberculata sp. n. (paratype). B, C: A. gemmifera sp. n. (holotype). Scale for A 0.25 mm, for B 0.10 mm, forC 0.20 mm.