Abstract
Members of the genus Parachironomus Lenz known from China and Japan are revised, and a key to their male adults is given. Parachironomus poyangensis sp. n. is described in this life stage. Parachironomus frequens (Johannsen) and Parachironomus monochromus (van der Wulp) are recorded from China for the first time, thus are redescribed from Chinese specimens. Parachironomus kamaabeus Sasa & Tanaka and Parachironomus toneabeus Sasa & Tanaka are new junior synonyms of Parachironomus frequens. Three Chinese or Japanese species formerly placed in Parachironomus are transferred to other genera, resulting in the new combinations Cryptochironomus inafegeus (Sasa, Kitami & Suzuki), Demicryptochironomus (Irmakia) lobus (Yan, Sæther, Jin & Wang), and Microchironomus lacteipennis (Kieffer). Chironomus sauteri Kieffer, Parachironomus kisobilobalis Sasa & Kondo and Parachironomus kuramaexpandus Sasa are removed from Parachironomus; the last of these three denotes a valid species of uncertain generic placement, the first two are nomina dubia.
Highlights
The name Parachironomus was proposed by Lenz (1921) for a genus concept based on larval and pupal characters. Edwards (1929) gave the first brief diagnosis for male imagines
Among the many species previously reported in Parachironomus from Japan, only P. frequens, P. gracilior, P. monochromus, P. swammerdami, and possibly P. acutus (Original genus is Chironomus) are considered as valid records
Aside from the species treated in the present work, Parachironomus harunasecundus Sasa has been transferred to the genus Demicryptochironomus (Yan et al 2008b); P. inageheus Sasa, Kitami & Suzuki, 2001 has been identified as a junior synonym of Demicryptochironomus ginzancedeus Sasa & Suzuki (Yan et al 2008b)
Summary
The name Parachironomus was proposed by Lenz (1921) for a genus concept based on larval and pupal characters. Edwards (1929) gave the first brief diagnosis for male imagines. Spies and Sæther (2004) showed that any name available from Kieffer (1921b, published in June) would take precedence over any name available from Lenz (1921, October) In this situation, using Parachironomus as a valid name could comply with the current rules of nomenclature (ICZN 1999) only if a special ICZN ruling were to effect an exemption from priority in this case, or if Kribiocryptus and Nilomyia are no longer treated as synonymous with Parachironomus. Based on the present examinations, only fpur or five true Parachironomus species appear to be known from Japan: P. frequens (Johannsen), P. gracilior (Kieffer), P. monochromus (van der Wulp), and P. swammerdami (Kruseman); P. acutus (Goetghebuer) is only provisionally placed in the genus at this time. A key to adult males from China and Japan is provided
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
