Winnertzia lapponica, Jaschhof & Jaschhof, 2020

Jaschhof, Mathias & Jaschhof, Catrin, 2020, Reevaluation of species richness in Winnertzia (Diptera, Cecidomyiidae, Winnertziinae), with descriptions of 37 new species from Sweden, Peru and Australia, Zootaxa 4829 (1), pp. 1-72 : 63

Winnertzia lapponica sp. nov.

Figs 112–115

Diagnosis. A medium-sized, brown Winnertzia with short antennae. Male genitalic characters diagnostic of this species are as follows ( Fig. 113 ). The gonostylus, which is slightly bent and 2.5 times as long as broad, has a double convex medial edge (↓ 1) and a fairly small claw with a furrow along the base. Of the tegmen, the lateral edges are faintly contoured, the apex is broadly rounded and strengthened (↓ 2), and the flaps, which are fairly large, have reinforced, microtrichose margins. The apex of the long aedeagal apodeme has a pair of recurved processes. Of the gonocoxal synsclerite, the ventral emargination is broadly U-shaped (↓ 3), the medial bridges are bulging towards the aedeagus, and the dorsal apodemes, whose connecting bridge is strongly concave, are moderately long. The ninth tergite is markedly shorter than the gonocoxae; its posterior edge has a shallow indentation flanked by a pair of small, microtrichose lobes; and the anterior edge is peculiar for having a deep, subtriangular notch medially (↓ 4). Females and preimaginal stages of W. lapponica are unknown.

Other male characters. Body size 2.0– 2.3 mm. Head. Eye bridge 3–4 ommatidia long dorsally. Antenna half as long as body. Scape slightly larger than pedicel, both concolorous with flagellum. 12 flagellomeres, flagellomeres 1–11 with translucent sensilla. Fourth flagellomere: neck half as long as node; node 1.7 times as long as broad; sensory hairs numerous; both lateral and medial translucent sensilla slightly broadened, variously obliquely aligned, mostly slightly bent ( Figs 114–115 ). Palpus slightly shorter than head height, 4 setae-bearing segments; apical segment longest of all. Labella fully developed. Thorax. Pronotal setae 9–15. Anepimeral setae absent. Lateral mediotergal microtrichia large ( Fig. 112 ). Parascutellar area bright, sharply contoured ( Fig. 112 ). Wing shorter than body, 2.3 times as long as broad. Costal cell reinforced. Both M 4 and CuA gently bent, extending to edge of wing. Legs with pointed scales. Basitarsal spines absent. Fore tibia 1.3 times as long as T 2. Acropods: claws slightly bent, basal tooth large; empodia as long as claws. Abdomen. Pleural membrane setose. Genitalia ( Fig. 113 ). Setae on ninth tergite confined to posterior two thirds. Gonocoxal synsclerite broader than long, little narrowed towards base; ventral emargination with small unsclerotized area basally; ventroanterior edge membranous, convex; ventroposterior portions protruding slightly beyond dorsoposterior portions. Basolateral apophysis of gonostylus normal size, angulated. Parameral apodemes short.

Etymology. The name refers to Lapland, the provenance of the type specimens.

Type material. Holotype. Male , Sweden, Lule Lappmark , Jokkmokk, Messaure, small area of swampy oldgrowth boreal forest, 3–30 July 2016, Malaise trap, M. & C. Jaschhof (spn CEC 3089 in NHRS) . Paratypes. 10 males, same data as the holotype (spns CEC3090 – CEC 3093 in NHRS, CEC 3094–3099 in SDEI) .

Distribution and phenology. No specimens other than the types are known of this species; their collection data are specified above.

Figures

FIGURES 112–118. Male morphology of Winnertzia lapponica (112–115) and Winnertzia longicoxa (116–118). 112: Posterior portion of thorax, lateral, paratype. 113: Genitalia, ventral, holotype. 114: Fourth flagellomere, lateral, paratype. 115: Ditto, medial. 116: Genitalia, ventral, holotype. 117: Fourth flagellomere, lateral, paratype. 118: Ditto, medial. Scales for 112, 0.025 mm; for 113–118, 0.05 mm. Arrows refer to characters described in the diagnoses.