Prodiamesinae, Saether, 1976

Cranston, Peter S. & Tang, Hongqu, 2024, An identification guide to the genera of aquatic larval Chironomidae (Diptera) of south-east Asia, Zootaxa 5497 (2), pp. 151-193 : 177

publication ID	https://doi.org/ 10.11646/zootaxa.5497.2.1
publication LSID	lsid:zoobank.org:pub:00B749E1-6499-49FC-81EE-87C5FB190195
DOI	https://doi.org/10.5281/zenodo.13628438
persistent identifier	https://treatment.plazi.org/id/E31D87D4-2E71-FFC3-20EC-FBCEB508C5A6
treatment provided by	Plazi
scientific name	Prodiamesinae
status

Treatment

Prodiamesinae View in CoL : genera

The small subfamily Prodiamesinae is cool temperate, largely northern hemisphere in distribution, and is represented in the region by all 5 known genera. Larvae of the subfamily are distinguished by a ventromental plate lacking striae (from Chironominae and Diamesinae ), and from Orthocladiinae by fringed SI setae, presence of labral lamellae and the 4-segmented antenna. Inclusion of Propsilocerus Kieffer has been confirmed via molecular (Cranston et al. 2012) and morphological ( Baranov 2021) analyses. A contemporary revision updates taxonomy for e. palaearctic and adjacent China fauna ( Makarchenko & Semenchenko 2023).

1 Median mental tooth broad, convex, pale ( Fig. 15A View FIGURE 15 ).......................................... Odontomesa Pagast [1 sp., Thailand ( ZSM); montane oriental China (Yunnan); Holarctic ]

1’ Median mentum either with 1 broad concave, or 2 or more small dark median teeth................................ 2

2(1) Median mentum with many teeth. Ventromental plate large without setae beneath ( Fig. 15B View FIGURE 15 ).......... Propsilocerus Kieffer [1 common sp., P. akamusi (Tokunaga) oriental China (Yunnan, Jiangxi); widespread inc. Korea, China; Japan. jun. syn. Tokunagayusurika Sasa ; Baranov 2021. Holarctic]

2’ Median mentum variable. Ventromental plate elongate with setae (‘beard’) beneath................................. 3

3(2) Ventromental plate narrow, beard weak; 1 concave median mental tooth ( Fig. 15C View FIGURE 15 )................. Monodiamesa Kieffer [ M. improvisa Makarchenko (ZSM) , montane oriental China (Hunan) ( Han et al. 2021a); Holarctic, Neotropics]

3’ Ventromental plate broad, beard strong; 2 recessed median mental teeth ( Fig. 15D–F View FIGURE 15 )............................... 4

4(3) Ventromental plate with dense, long setae beneath ( Fig. 15D, E View FIGURE 15 ). Premandible with 2 teeth............ Prodiamesa Kieffer [Pe, 1500–2500 m., oriental China (Yunnan, Sichuan), Holarctic, Neotropics ]

4’ Ventromental plate with sparse, short setae beneath ( Fig. 15F View FIGURE 15 ). Premandible with 1 tooth........... Compteromesa Saether [ C. haradensis Niitsuma & Makarchenko , widespread, oriental China, Japan; C. biramosa Tang & Niitsuma , oriental China (Yunnan), Shi et al. 2021. Holarctic]