Plectrocnemia Stephens, 1836

Wichard, Wilfried & Xu, Chunpeng, 2022, The family Polycentropodidae (Insecta, Trichoptera) in mid-Cretaceous Burmese Amber, ZooKeys 1134, pp. 171-183 : 171

publication ID

https://dx.doi.org/10.3897/zookeys.1134.93999

publication LSID

lsid:zoobank.org:pub:0DCD69C8-6FF8-4661-8AB4-E31BAF26F6D7

persistent identifier

https://treatment.plazi.org/id/AADF72F1-0B95-52EE-88C0-2A71A06458AB

treatment provided by

ZooKeys by Pensoft

scientific name

Plectrocnemia Stephens, 1836
status

 

Genus Plectrocnemia Stephens, 1836

Type species.

Plectrocnemia senex Stephens, 1836.

Description and diagnosis.

Ocelli absent. Filiform antennae about as long as forewings or shorter. Maxillary palps each five-segmented with the 1st and 2nd segments much shorter than the 3rd segment, terminal segment longest and annulated. Plectrocnemia adults with complete forewing venation, apical forks I, II, III, IV, V present; fork I petiolate and fork II sessile; discoidal and median cells closed; crossveins r, s, r-m, and m usually present. In hind wings apical forks I, II, V present, fork I petiolate and fork II sessile; discoidal cell closed. Tibial spur formula 3/4/4.

The two new Plectrocnemia species are very similar and differ clearly in the one-segmented inferior appendages which are robust and short or long.