Cricotopus

Drayson, Nick, Cranston, Peter S. & Krosch, Matt N., 2015, Taxonomic review of the chironomid genus Cricotopus v. d. Wulp (Diptera: Chironomidae) from Australia: keys to males, females, pupae and larvae, description of ten new species and comments on Paratrichocladius Santos Abreu, Zootaxa 3919 (1), pp. 1-40 : 22

publication ID	https://doi.org/10.11646/zootaxa.3919.1.1
publication LSID	lsid:zoobank.org:pub:218630EE-6BF7-4E35-A8F6-9E8260D60FA0
DOI	https://doi.org/10.5281/zenodo.6122657
persistent identifier	https://treatment.plazi.org/id/A44D4A76-B348-FFC8-FF34-FB71FA6DC04A
treatment provided by	Plazi (2016-04-18 14:27:34, last updated 2024-11-29 12:38:29)
scientific name	Cricotopus
status

Treatment

Key to adult males of Australian Cricotopus View in CoL

(excluding C. howensis , C. wangi , inadequately known as adult male)

1 Tergite IV wholly pale ( Fig. 1 View FIGURE 1 B,F,H,I)..................................................................... 2

- Tergite IV wholly ( Fig. 1 View FIGURE 1 A,E,G) or partly ( Fig. 1 View FIGURE 1 C,D) dark..................................................... 5

2 Tibiae and tarsomeres of mid- and hind legs pale ( Fig. 1 View FIGURE 1 B,H)................................................... 3

- Tibiae of all legs dark, with or without pale bands; all tarsomeres dark ( Fig. 1 View FIGURE 1 F,I)................................... 4

3 All legs pale apart from small dark patch proximal on tibia ( Fig. 1 View FIGURE 1 H)............................... C. tasmania View in CoL sp. n.

- All femora pigmented, tarsomeres of fore-leg darkened ( Fig. 1 View FIGURE 1 B)........................ C. albitarsis Hergstrom View in CoL sp. n.

4 Tergite IV with median and lateral setae separate ( Fig. 3 View FIGURE 3 F)...................................... C. varicornis View in CoL sp. n.

- Tergite IV with median and lateral setae connected by posterior setae ( Fig. 3 View FIGURE 3 G)........................ C. hillmani View in CoL sp. n.

5 Tergite I dark ( Fig. 1 View FIGURE 1 A,E,G)............................................................................. 6

- Tergite I pale ( Fig. 1 View FIGURE 1 C,D)............................................................................... 8

6 All tibiae with pale bands ( Fig. 1 View FIGURE 1 G)............................................. C. parbicinctus Hergstrom View in CoL sp. n.

- All tibiae uniformly dark ( Fig. 1 View FIGURE 1 A,E)...................................................................... 7

7 Inferior volsella bilobed ( Fig. 2 View FIGURE 2 A)........................................................... C. acornis View in CoL sp. n.

- Inferior volsella unilobed ( Fig. 1 View FIGURE 1 E)......................................................... C. conicornis View in CoL sp. n.

8 Tergites II, IV, V & VI dark with pale anterior band ( Fig. 1 View FIGURE 1 C), inferior volsella bilobed or rounded ( Fig. 2 View FIGURE 2 C)............................................................................................... C. annuliventris (Skuse) View in CoL

- Tergite II mid brown with pale posterior band, tergites III & IV dark with pale anterior and posterior pale bands ( Fig. 1 View FIGURE 1 D), infe- rior volsella elongate, pointing posteriorly ( Fig. 2 View FIGURE 2 D).......................................... C. brevicornis View in CoL sp. n.

Figures

FIGURE 1. Cricotopus adult males. Columns (left to right): legs, anterior to posterior; thorax; dorsal abdomen. A. C. acornis, B. C. albitarsis, C. C. annuliventris, D. C. brevicornis, E. C. conicornis, F. C. hillmani, G. C. parbicinctus, H. C. tasmania, I. C. varicornis.

FIGURE 2. Cricotopus male genitalia, part, (inset variations in inferior volsella above, gonostylus below). A. C. acornis, B. C. albitarsis, C. C. annuliventris, D. C. brevicornis, E. C. conicornis, F. C. hillmani.

FIGURE 3. Cricotopus male genitalia, part. A. C. howensis, B. C. parbicinctus (inset variation in inferior volsella above, gonostylus below), C. C. tasmania, D. C. varicornis, E. C. wangi. Tergite III, IV setation: F. C. varicornis, G. C. hillmani.