Parepidosis lobata, Jaschhof, 2024

Jaschhof, Mathias, 2024, New taxa and new records of Winnertziinae and Porricondylinae (Diptera: Cecidomyiidae) from Germany, European Journal of Taxonomy 953, pp. 1-134 : 85-87

Parepidosis lobata sp. nov.

urn:lsid:zoobank.org:act:1EE8B962-1C56-4661-A346-3F8C41D39A37

Fig. 21

Diagnosis

Morphology

The male of P. lobata sp. nov. is characterized by the gonostylus whose thick basal portion extends apicodorsally into an elongate-subtriangular process (↓ 1, Fig. 21A ), and by the H-shaped tegmen whose lateral pillars are markedly bent dorsad beyond the cross connection (↓ 2, Fig. 21A ). Larvae and females of the new species are unknown.

DNA barcode

CO1 sequences (642‒652bp) were obtained of four paratype specimens detailed below and allocated to three different BINs: BOLD:ADW4641 (specimen ZSM-DIP-42305-E05), BOLD:AEO7433 (ZSM-DIP-42306-A08), and BOLD:AEE7552 (ZSM-DIP-42306-G02 and ZSM-DIP-42306-G07). Morphological evidence in support of the genetic clustering was not found (see the remarks below). Search on BOLD’s BIN Database retrieved a further match for BIN BOLD:AEE7552, as Cecidomyiidae sp. from Bavaria, Germany (accessed 27 Aug. 2023).

Etymology

The Latin adjective ‘ lobata ’, for ‘lobate’, refers to the peculiar structure of the gonostylus.

Type material

Holotype

GERMANY • ♂; Bavaria, Lower Bavaria , Rain ; 48°64′61″ N, 11°01′89″ E; elev. 429 m; 15 Jul. 2019; LandKlif and J. Müller leg.; Malaise trap; ZSM-DIP-42306-G09 .

Paratypes

GERMANY – Bavaria • 1 ♂; Deggendorf ; 48°84′01″ N, 12°96′62″ E; elev. 377 m; 14 Jul. 2019; LandKlif and J. Müller leg.; Malaise trap; BOLD GBDTA10239-21 ; ZSM-DIP-42306-G02 • 1 ♂; same data as for preceding; ZSM-DIP-42306-G03 • 1 ♂; same data as for preceding; BOLD GBDTA10244-21 ; ZSM-DIP-42306-G07 • 1 ♂; Dammbach, Dammbachtal ; 49°86′64″ N, 9°32′63″ E; elev. 349 m; 17 Jun.‒2 Jul. 2021; GBOL and R. Albrecht leg.; Malaise trap; nutrient-poor pasture with fruit trees; ZSM-DIP-42472-D06 . – Baden-Württemberg • 1 ♂; Malsch, Luderbusch ; 48°91′31″ N, 8°33′25″ E; elev. 117 m; 21‒28 Jun. 2020; D. Doczkal and K. Grabow leg.; Malaise trap; south-facing hill slope; BOLD GBDTA10123-21 ; ZSM-DIP-42305-E05 • 1 ♂; same data as for preceding; 48°91′61″ N, 8°33′18″ E; elev. 111 m; 12‒26Apr. 2020; windthrow of birch trees; BOLD GBDTA10173-21 ; ZSM-DIP-42306-A08 .

Other characters

Male

BODY LENGTH. 1.5‒2.0 mm.

HEAD. Eye bridge dorsally 3‒4 ommatidia long. Antenna markedly longer than body; scape and pedicel brighter than flagellum; circumfila present on flagellomeres 1‒13; neck of fourth flagellomere 2.0‒2.2 × as long as node ( Fig. 21B ). Palpus 4-segmented, slightly longer than head height.

THORAX. Scutal setae sparse. Anepisternal setae 0‒4.

WING. Longer than body. Length / width ratio 2.9‒3.2.

LEGS. Claws with large tooth basally. Empodia ⅓ as long as claws.

TERMINALIA ( Fig. 21A ). Gonocoxal synsclerite: ventral emargination deeply U-shaped, reinforced basally; setose portion below emargination very short; anterior margin membranous, of varying outline. Gonostylus: medial bulge subglobular, with 2‒3 ordinary setae and 1 long bristle below pectinate tooth. Aedeagal apodeme markedly longer than gonocoxae, moderately sclerotized; both base and apex broadened, apical broadening subrectangular, slightly sclerotized; ducts of accessory glands evident (not illustrated).

Remarks

The new species exhibits morphological variation to the same, normal extent as found in other Parepidosis ( Jaschhof & Jaschhof 2013) . The confusing thing about P. lobata sp. nov. is that, in slide-mounted specimens examined ventrally, the length of the tegminal processes varies depending on how strongly the tegminal apex is bent dorsally under the pressure of the cover slip ( Fig. 21A, C ).

Figures

Fig. 21. Parepidosis lobata sp. nov. A. Holotype, ♂, terminalia, ventral view (ZSM-DIP-42306-G09). B. Holotype, ♂, fourth flagellomere, lateral view. C. Paratype, ♂, parameres, ventral view, variation (ZSM-DIP-42306-G02). Scale lines: 0.05 mm. The numbered arrows indicate diagnostic characters (see text).