Cricotopus (Paratrichocladius) skirwithensis (Edwards, 1929)

Chamutiová, Tímea, Hamerlík, Ladislav & Bitušík, Peter, 2020, Subfossil chironomids (Diptera, Chironomidae) of lakes in the Tatra Mountains an illustrated guide, Zootaxa 4819 (2), pp. 216-264 : 233

publication ID	https://doi.org/10.11646/zootaxa.4819.2.2
publication LSID	lsid:zoobank.org:pub:2459A542-6CF2-4545-9E6F-262C68838D99
DOI	https://doi.org/10.5281/zenodo.4442631
persistent identifier	https://treatment.plazi.org/id/03F487F1-FFAC-FFB5-FF22-FB69AA0FF9EC
treatment provided by	Plazi (2020-12-29 00:20:21, last updated 2024-11-25 23:27:53)
scientific name	Cricotopus (Paratrichocladius) skirwithensis
status

Treatment

Cricotopus (Paratrichocladius) skirwithensis View in CoL - type ( Figs 37, 38 View FIGURES 37–42 )

This is a new morphotype, not listed in Brooks et al. (2007).

Head capsule light brown with dark brown occipital margin and mandibular teeth. Mentum triangular in shape with a single median tooth up to 2 times width of first lateral tooth. First lateral tooth of the mentum is clearly rounded, wider in the middle than at the base. Remainder of lateral teeth pointed. First inner tooth of the mandible large, noticeably broader than apical tooth, but not taller ( Fig. 37 View FIGURES 37–42 ); outer margin of mandible smooth or only with a vague indication of crenulation. Setae submenti positioned between the bases of ventromental plates. Premandible with one apical tooth (however, there may be a faint indication of a notch) ( Fig. 38 View FIGURES 37–42 ).

References

Brooks, S. J., Langdon, P. G. & Heiri, O. (2007) The Identification and Use of Palaearctic Chironomidae Larvae in Palaeoecology. QRA Technical Guide No. 10. QRA, London, 276 pp.

Figures

FIGURES 37–42. Cricotopus (Paratrichocladius) skirwithensis-type: 37—head capsule (arrow indicates first inner tooth of the mandible). C. (P.) skirwithensis-type: 38—detail of premandible). Cricotopus (Cricotopus) tremulus-type: 39—head capsule. Cricotopus/Orthocladius I: 40—head capsule. Diplocladius cultriger: 41—head capsule. D. cultriger: 42—detail of the head capsule (arrow indicates long and dense beard).