Dicerapanorpa jialiangjiei, Xie & Wang, 2025

Xie, Jiao & Wang, Ji-Shen, 2025, Three new species of Mecoptera (Insecta, Antliophora) from Yunnan, China, European Journal of Taxonomy 997, pp. 275-288 : 283-285

Dicerapanorpa jialiangjiei sp. nov.

urn:lsid:zoobank.org:act:3FCC5DA7-A857-47DF-99AB-E834BB3E04FB

Fig. 5

Diagnosis

The new species greatly resembles D. tjederi ( Carpenter, 1938) in the bifurcated middle branch of the male parameres ( Fig. 5F ). However, it can be differentiated from the latter by the following characters: in males, 1) median tooth and basal lobe of gonostyli widely separated ( Fig. 5E–F , vs closely adjoined); 2) ventral valves of aedeagus short and subtriangular ( Fig. 5E–F , vs elongated and rounded); and in females, 3) medigynium with posterior arms rounded terminally ( Fig. 5B, I , vs rather truncated).

Etymology

Named after its discoverer and collector, Liang-Jie Jia. Noun in the genitive case.

Type material

Holotype

CHINA – Yunnan Province • ♂; Lijiang Prefecture, Yulong Naxi Autonomous County, Shitou Bai Township ; 26°48′23.62″ N, 99°36′39.11″ E; 2840 m a.s.l.; 8 Jul. 2024; L.-J. Jia leg.; BMDU, CNYLNX24 Di 001.

Paratype

CHINA – Yunnan Province • 1 ♀; same data as for holotype; BMDU, CNYLNX24 Di002 .

Description

MEASUREMENTS (mm). Male (holotype). AtL 12.7, AbL 10.5, BL 14.3, FL 14.0, FW 3.4, HL 12.5, HW 3.3. Female (paratype). AtL 11.6, AbL 9.8, BL 15.7, FL 15.2, FW 3.8, HL 14.1, HW 3.7.

Male

HEAD ( Fig. 5A ). Vertex yellow with black spots. Ocellar triangle enclosed by large black arrow-shaped pattern.

THORAX ( Fig. 5A ). Pronotum with six black thick setae along each side of anterior margin. Meso- and metanotum black laterally, with broad yellow median stripe half as wide as nota.

WINGS ( Fig. 5A ). Membrane hyaline, lacking distinct markings. Pterostigmal band represented by indistinct triangular spots in forewings. Pterostigma dark gray.

ABDOMEN ( Fig. 5A, C ). T2–T4 black laterally with broad yellow median stripe, T5 mostly yellow. A6 yellowish brown with pair of divergent and finger-shaped anal horns on dorsal apex.A7 and A8 yellowish brown, constricted greatly at base. A8 slightly longer than A7. Epandrium broad, emarginated terminally and forming pair of stout processes laterally. Hypandrium split into pair of long, stripe-like hypovalves. Hypovalves slightly broadening towards apex, with row of long stout and short dense bristles spaced along inner margin.

GENITALIA ( Fig. 5D–F ). Gonostyli and gonocoxites approximately same length. Gonostyli with greatly developed and hook-like basal process and short, acute middle tooth. Parameres trifurcate: ventral and median branch straight, ventral branch shorter than median branch; middle branch bifurcated subapically; distal portion of dorsal branch sinuate. Ventral valves of aedeagus membranous and subtriangular; dorsal valves with slightly elongated dorsal processes.

Female

Habitus ( Fig. 5B ) generally similar to males except for denser wing markings represented by subtriangular pterostigmal bands in fore- and hindwings.

GENITALIA ( Fig. 5G–I ). Subgenital plate with prominent terminal protuberance, and bearing long stout setae apically. Laterotergites subtriangular. Medigynium with broad basal plate; main plate wider than base of posterior arms; posterior arms slightly shorter than main plate with rounded apex.

Distribution

China: Yunnan (Lijiang).

Figures

Fig. 5. Dicerapanorpa jialiangjiei sp. nov. A, C–F. Holotype, ♂ (BMDU, CNYLNX24Di001). B, G–I. Paratype, ♀ (BMDU, CNYLNX24Di002). A–B. Habitus, dorsal view. C. Male T6–T7, dorsal view. D. Genital bulb, dorsal view. E–F. Genital bulb, ventral view. G. Female terminalia, lateral view. H. Subgenital plate, ventral view.I. Medigynium, ventral view.Abbreviations: see Material and methods.