Porricondyla acutistylata, 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 : 89-90

Porricondyla acutistylata sp. nov.

urn:lsid:zoobank.org:act:EFBAACCE-1703-484C-BF57-1F2133CE4B98

Fig. 22

Diagnosis

Morphology

The gonostylar tooth of P. acutistylata sp. nov. is comb-shaped, i.e., consists of numerous individual spines with a common, conjunctive base, which places this species in subdivision A of Jaschhof & Jaschhof’s (2013) intrageneric classification. Within that subdivision, the new species is characterized by a set of terminalia characters, as follows ( Fig. 22A ). The gonostylus is both markedly bent and tapered towards the apex (↓ 1); the long, slender and for the most part moderately sclerotized parameres have conspicuously pale, strongly bent apices (↓ 2); and the large, broadly rounded gonocoxal processes are completely membranous (↓ 3). Larvae and females of the new species are unknown.

DNA barcode

The CO1 sequence (652bp) of the holotype specimen is available in BIN BOLD:AER2210. Search on BOLD’s BIN Database retrieved no further result for this BIN (accessed 27 Aug. 2023).

Etymology

The specific name, an adjective, means ‘with pointed gonostylus’.

Type material

Holotype

GERMANY • ♂; Bavaria, Weilheim, Pähl , Hartschimmelhof ; 47°93′99″ N, 11°18′30″ E; 20 Jun.‒12 Jul. 2020; D. Doczkal and K. Grabow leg.; Malaise trap; fen; BOLD GBDTA9910-21 ; ZSM-DIP-42303-C06 .

Other characters

Male

BODY LENGTH. 2.0 mm.

HEAD. Eye bridge dorsally 1‒2 ommatidia long. Antenna markedly longer than body; scape and pedicel brighter than flagellum; circumfila present on flagellomeres 1‒14; neck of fourth flagellomere 1.8× as long as node ( Fig. 22B ). Palpus concealed in only specimen available for study.

THORAX. No scutal windows. Pronotal setae 4, anepisternal setae 0, anepimeral setae 7.

WING. Markedly longer than body. Length/ width ratio 2.8.

LEGS. Foreleg with femur 0.9× length of tibia, T 2 not retained. Acropods not retained.

TERMINALIA ( Fig. 22A ). Gonocoxal synsclerite with subtriangular protuberances ventroapically; ventral emargination very broadly U-shaped; a large, narrowed portion anteriorly with only a few, mostly lateral setae; anterior margin broadly rounded. Parameres with unusually broad transverse bridge subbasally. Aedeagal apodeme including its extensive membranous apex as long as gonocoxae, for the most part moderately sclerotized; ducts of accessory glands evident (not illustrated).

Figures

Fig. 22. Porricondyla acutistylata sp. nov., holotype, ♂ (ZSM-DIP-42303-C06). A. Terminalia, ventral view. B. Fourth flagellomere, lateral view. Scale lines: 0.05 mm. The numbered arrows indicate diagnostic characters (see text).