Manota kerri, Kurina & Hippa & Amorim, 2019

Kurina, Olavi, Hippa, Heikki & Amorim, Dalton De Souza, 2019, Notes on Manota Williston (Diptera: Mycetophilidae) from Australia and Papua New Guinea, with description of two new species, Zootaxa 4555 (3), pp. 385-395 : 389-391

Manota kerri sp. n.

Figs 3 A–D

Male. Colour. Head dark brown, face somewhat paler. Antenna light brown, including scape and pedicel. Clypeus and mouthparts pale yellowish. Thorax brown. Legs yellowish, except hind femora infuscated basally and light brown at apical fourth. Wing with brownish tinge because of microtrichia; halter yellow with blackish knob. Abdomen dark brown, sternites lighter. All vestiture pale, yellowish or brownish, thicker setae darker than finer ones. Head. Fourth antennal flagellomere 1.4 times as long as wide. Palpomere 3 of maxillary palpus with apicomesial thumb-like extension, with 2 curved apical sensillae; palpomere 4 without parasegment; palpomere 5 ca. 1.6 times longer than palpomere 4. Number of strong postocular setae 11. Thorax. Anepisternum with 35 setae, anterior basalare with 9 setae, laterotergite with 35 setae, preepisternum 2 with 5 setae, metepisternum with 11 setae. Legs. Mid and hind tibial organs absent. Wing. R 1 meeting C within basal half of costal margin; sclerotized part of M 2 almost extending to level of tip of R 1; wing length 1.6 mm. Hypopygium ( Figs 3 A–D). Sternite 9 entirely fused with gonocoxa laterally, posterior margin smoothly convex, anterior margin with wide and shallow V-shaped incision, and with unmodified setae, similar throughout sternite 9 and gonocoxa. Parastylar lobe large, plate-like, posterolaterally drawn out, with two strong setae at posteromedial corner. Paraapodemal lobe not observed. Dorsal medial margin of gonocoxa concave, basal third bulging medially, apically forming a right-angled lobe with dorsal posterior margin of gonocoxa. Dorsal medial margin of gonocoxa medially with a sub-globular lobe bearing ca. 10 strong, apically bent setae at posterior margin. Setae on dorsal side of gonocoxa similar to those on ventral side. One juxtagonostylar seta present as a flame-shaped, apically pointed megaseta arising from basal body that is shorter than megaseta. Gonostylus about half the length of gonocoxa, bilobed, with sub-quadrangular, apically emarginated ventral lobe and a small, hump-like more dorsal lobe; former lobe with a very long apical seta at lateral corner, a shorter apical seta at medial corner, three additional strong setae at the lateral and apical margins, and with a basolateral convexity bearing ca. 10 setae; dorsal lobe with six setae strong and apically curved. Aedeagus elongate, sub-triangular, swollen sub-apically, apex curved ventrad. Hypoproct posteriorly extending near apex of gonostylus, ventral part (sternite 10) with ca. 15 scattered setae on each half. Cerci medially separate, setae separated into apical and dorsomedial groups.

Female. Unknown.

Etymology. The species is named after Dr. Peter Kerr (California Department of Food & Agriculture, Sacramento), who made available to us most of the material from Papua New Guinea, including the holotype of this species.

Discussion. Following the key by Hippa (2007), Manota kerri sp. n. runs into couplet 8 and belongs to a group of five Oceanian species— M. alulata Kurina & Hippa, 2015 , M. hirsuta Hippa, 2007 , M. lunata Kurina & Hippa, 2015 , M. spathula Hippa, 2007 , and M. subspathula Hippa, 2007 —that have setose anepisternum, anterior basalare and laterotergite, and sternite 9 very large, with at least its anterior part laterally fused to the gonocoxa (see also discussion in Kurina & Hippa 2015: 262). Among them, M. kerri resembles more closely M. alulata , in having the gonostylus bilobed, not elongated, and sternite 9 entirely fused to the gonocoxa. Manota kerri differs from M. alulata in having: (1) posterior margin of sternite 9 smoothly convex (with sub-medial incisions in M. alulata ); (2) the parastylar lobe large, plate-like, posterolaterally drawn out, with two strong setae at the posteromedial corner (bipartite, with a finger-like dorsomedial part in M. alulata ); (3) the juxtagonostylar megaseta flame-shaped (simple in M. alulata ); (4) ca. 10 strong setae on the sub-globular lobe ventrally from the dorsal medial margin of the gonocoxa apically bent at right angles and arranged at margin ( M. alulata has ca. 17 strong, apically straight setae, arranged across the dorsal surface of the sub-globular lobe); (5) gonostylus with the ventral lobe apically blunt, somewhat emarginated (ventral lobe of the gonostylus apically tapering in M. alulata ); and (6) aedeagus subapically swollen (apical half tapering, basal half with membranous lateral lobe in M. alulata ).

Type material. Holotype. Male, PAPUA NEW GUINEA: Madang Prov., Wanang Cons. Area, hilltop clearing in forest behind Swire Research Station 172 masl, 5°13.682’S 145°4.752’E Malaise Trap, 17–22.xi.2015, coll. N. von Ellenrieder & R.W. Garrison CSCA16L013 (on slide, IZBE).

Figures

FIGURE 3. Manota kerri sp. n. (holotype). A. Hypopygium, dorsal view. B. Hypopygium, ventral view. C. Left gonostylus, dorsal view. D. Hypoproct and aedeagus, ventral view. Scale 0.1 mm.