Winnertzia panguana, 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 : 51

Winnertzia panguana sp. nov.

Figs 90–92

Diagnosis. A medium-sized, brown Winnertzia with short antennae and short, broad wings. Male genitalic structures are specific to this species, as follows ( Fig. 90 ). The gonocoxal synsclerite has an unusually deep, V-shaped emargination ventrally (↓ 1), the aedeagal apodeme is strongly inflated above the solid basal portion (↓ 2), and the gonostylus, which is elongate and parallel-sided, is peculiar for having the edge below the pectinate claw angular rather than rounded (↓ 3). Females and preimaginal stages of W. panguana are unknown.

Other male characters. Body size 2.1 mm. Head. Eye bridge 3–4 ommatidia long dorsally. Antenna shorter than half body. Scape slightly larger than pedicel, both concolorous with flagellum. 11 flagellomeres; translucent sensilla on flagellomeres 1–10. Fourth flagellomere (not pictured due to adverse position in the slide-mount): neck 0.5 times as long as node; node 1.4 times as long as broad; sensory hairs numerous; both lateral and medial translucent sensilla filiform, longitudinally aligned, irregularly bent. Palpus shorter than head height, 4 setae-bearing segments; fourth segment longest of all. Labella of normal size. Thorax. Pronotal setae about 40. Anepimeral setae absent. Lateral mediotergal microtrichia large. Parascutellar area bright, vaguely contoured. Wing markedly shorter than body, twice as long as broad. Costal cell slightly reinforced. M 4 long, almost straight, CuA strongly bent, both veins extending to edge of wing. Legs. Scales pointed. Basitarsal spines absent. Fore tarsus 1.4 times as long as T 2. Acropods: claws slightly bent, basal tooth large; empodia vestigial. Abdomen. Pleural membrane with setae and scales. Genitalia ( Fig. 90 ). Ninth tergite about half gonopodal length; setae confined to lateroposterior portions; anterior edge vague; posterior edge narrow, shallowly indented medially. Gonocoxal synsclerite broader than long, strongly narrowed basally; densely setose ventrally except for non-setose basal portion; ventroanterior edge straight; medial bridges bulging; ventro- and dorsoposterior portions ending at same level; dorsal apodemes moderately long. Gonostylus 2.5 times as long as broad, slightly bent; pectinate claw large; basolateral apophysis normal size, slightly angulated. Aedeagal bulge with closely spaced rows of tiny spikes, its anterior edge well-marked as transverse line. Apex of aedeagal apodeme slightly broadened, thin-walled; solid basal portion short. Tegmen tapered towards rounded apex; flaps turned outwards, with fine microtrichia along edges; parameral apodemes large.

Etymology. The name, a noun in apposition, refers to Panguana, the provenance of the holotype specimen. Panguana is Peru’s oldest biological field station and, since 2011, a private protected area, which preserves a sizeable piece of pristine lowland rainforest in the upper Amazon basin, about 140 km from the eastern slope of the Andes Mountains.

Type material. Holotype. Male, Peru, Huánuco Region, Huánuco Department, Puerto Inca Province , Yuyapichis District , Area de Conservacion Privada Panguana , 260 m elevation, primary rainforest, June–September 2010, Malaise trap, E. Diller ( Museo de Historia Natural , Universidad Nacional Mayor de San Marcos , Lima, Peru).

Distribution and phenology. The holotype, whose collection data are specified above, is the only specimen known of this species.

Figures

FIGURES 90–93. Male morphology of Winnertzia panguana (90) and Winnertzia quercinophila (91–93), holotypes. 90: Genitalia, ventral. 91: Ditto. 92: Fourth flagellomere, lateral. 93: Ditto, medial. Scales 0.05 mm.Arrows refer to characters described in the diagnoses.