Acerocnema Becker, 1894

Iwasa, Mitsuhiro, 2021, Three new species and six new records of Scathophagidae (Diptera) from Japan with a key to the Japanese genera, Zootaxa 4981 (3), pp. 531-553 : 532

publication ID

https://doi.org/ 10.11646/zootaxa.4981.3.6

publication LSID

lsid:zoobank.org:pub:6416487B-1776-4BA5-AFB5-6D382C1940D4

DOI

https://doi.org/10.5281/zenodo.5047257

persistent identifier

https://treatment.plazi.org/id/03B587C9-FFB2-AF2B-B09C-ED0576BE59D4

treatment provided by

Plazi

scientific name

Acerocnema Becker, 1894
status

 

Genus Acerocnema Becker, 1894 View in CoL View at ENA

[Japanese name: Kuchiboso-funbae-zoku]

Acerocnema Becker, 1894 View in CoL , Berl. ent. Z. 39: 154. Type-species: Cordylura breviseta Zetterstedt, 1846: 2022 View in CoL , by original designation [= Cordylura macrocera ( Meigen, 1826) ].

The Palaearctic species of the genus Acerocnema View in CoL were revised and defined by Ozerov (2006, 2014) and Iwasa (2014). The Nearctic fauna was recently revised by Chagnon & Sinclair (2020).

Diagnosis. Small, about 3.0-6.0 mm in body length; head rounded in profile; gena and postgena wide; male postpedicel developed and rectangular; arista bare to short-haired and not longer than maximum length of postpedicel measured on its dorsolateral surface in male; proboscis slender and sclerotized with reduced labella; palpus basally slender and dilated apically; chaetotaxy (yellow to black): 3-4 fr, 2-3 or, 1 oc, 1 vti, 1 vte, 1 poc. Thorax yellow to black and shiny or white to grey micotrichose, covered with yellowish hairs; chaetotaxy (yellow): 1-2 pprn, 2 npl, 1+2 sa, 2+3 dc, 2 pa, 1 b sc, 1 d sc, 1 ap sc,1 prepst, 1 prepm, 2-8 anepst; 1 kepst; legs slender, normally without black or stout setae; wings hyaline without any brown spots or black setae; R 1 with or without dorsal setulae on apical portion; vein A 1 not reaching wing margin. Male abdomen: enlarged apically and covered with long yellowish hairs; sternite V deeply bilobate posteriorly; surstylus articulated with epandrium and long, slender, but varied in shape; aedeagus basally chitinous and apically membranous, and sometimes whip-like; cercal plate developed and divided into complex lobes. Female abdomen: segments VI to VIII compressed; ovipositor short, strongly sclerotized and compressed posteriorly.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Scathophagidae

Loc

Acerocnema Becker, 1894

Iwasa, Mitsuhiro 2021
2021
Loc

Acerocnema

Zetterstedt, J. W. 1846: 2022
1846
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