﻿Notes on the taxonomic status and distribution of some Cylindrotomidae (Diptera, Tipuloidea), with emphasis on Japanese species

Levente-Péter Kolcsár,Kozo Watanabe,Yume Imada,Nikolai Paramonov,Maribet Gamboa,Dai Shinoka,Daichi Kato,Makoto Kato

doi:10.3897/zookeys.1083.75624

Abstract

A morphological and molecular study of 17 Cylindrotomidae species revealed that the two subspecies of Cylindrotomadistinctissima, the Nearctic C.americana Osten Sacken, 1865, stat. reval. and the Palearctic C.distinctissima (Meigen, 1818), represent separated lineages and consequently are raised to species level. Cylindrotomajaponica Alexander, 1919, syn. nov. and C.distinctissimaalpestris Peus, 1952, syn. nov. are now known to be junior synonyms of C.distinctissima. Triogmakuwanailimbinervis Alexander, 1953, syn. nov. and T.nimbipennis Alexander, 1941, syn. nov. are now placed into synonymy under Triogmakuwanai (Alexander, 1913). The Japanese Cylindrotomidae are all redescribed and all available literature and distribution data are summarised. Supplementary descriptions and illustrations for male and female terminalia of Cylindrotomanigriventris Loew, 1849, Diogmadmitrii Paramonov, 2005, Liogmanodicornis (Osten Sacken, 1865), Phalacrocerareplicata (Linnaeus, 1758), P.tipulina Osten Sacken, 1865, and Triogmatrisulcata (Schummel, 1829) are provided. The following new distribution records are outlined; Diogmacaudata Takahashi, 1960 from Arkhangelsk Oblast, Russia; D.glabrata (Meigen, 1818) from Belarus, Latvia, and Altai Republic, Amur Oblast, Novgorod Oblast, Magadan Oblast, Samara Oblast, and Kuril Islands (Shikotan I and Paramushir I) in Russia; Liogmaserraticornis Alexander, 1919 from Khabarovsk Krai, Russia; Phalacrocerareplicata from Khabarovsk Krai, Russia; and the presence of Cylindrotomanigriventris in Altai Republic, Russia is confirmed.

Highlights

The Cylindrotomidae, the so-called long-bodied crane flies, are the smallest crane fly family within the superfamily Tipuloidea, with 70 extant species and 18 extinct species (Greenwalt et al 2019; Krzemiński et al 2019; Kania-Kłosok et al 2021; Oosterbroek 2021)
The Cylindrotominae are characterised by the following character combinations: 16-segmented antennae; the transverse V-shaped suture of the scutum is less apparent than other crane flies; this is slender and elongated; unbranched gonostylus; large aedeagal complex with trifid or secondary bifid (Diogma Edwards, 1938) aedeagus; relatively short and broad female terminalia with leaf- or blade-like cerci and hypogynial valves (Alexander 1928; Peus 1952; Brodo 1967; Ribeiro 2009)
A maximum likelihood tree based on the COI barcode sequences is shown in Figures 1 and 2

Summary

Introduction

The Cylindrotomidae, the so-called long-bodied crane flies, are the smallest crane fly family within the superfamily Tipuloidea, with 70 extant species and 18 extinct species (Greenwalt et al 2019; Krzemiński et al 2019; Kania-Kłosok et al 2021; Oosterbroek 2021). The male and female terminalia of Cylindrotoma nigriventris Loew, 1849, Diogma dmitrii Paramonov, 2005, Liogma nodicornis (Osten Sacken, 1865), Phalacrocera replicata (Linnaeus, 1758), P. tipulina Osten Sacken, 1865, and Triogma trisulcata (Schummel, 1829) are illustrated and described in detail.

Results

Conclusion