Corrigendum: Liu W-B, Wang C-Y, Tang Y-N, Wang Y, Pei W-X, Yan C-C (2024) Six new species of Cryptochironomus Kieffer (Diptera, Chironomidae) from the Nearctic region. ZooKeys 1200: 275–302. doi: 10.3897/zookeys.1200.119225

Abstract

Tables

1	Anal point broad and flat	2
–	Anal point narrow	3
2	Mesal apical margin of gonostylus emarginate	C.scimitarus Townes, 1945
–	Mesal apical margin of gonostylus straight or nearly straight	C.sorex Townes, 1945
3	Mesal apical margin of gonostylus emarginate	C.argus Roback, 1957
–	Mesal apical margin of gonostylus not emarginate	4
4	Gonostylus ~ 4× as long as wide, AR about 3.7, Wing length 3.1–3.4 mm	C.blarina Townes, 1945
–	Gonostylus ~ 1.6–3.7× as long as wide; when AR higher than 3.6, Wing length higher than 3.4 mm or lower than 3.1 mm	5
5	Gonostylus widened towards apex; frontal tubercles present; AR 1.99–5.1; LR1 1.12–1.73, 9–24 sensilla chaetica on P2	6
–	Gonostylus not distinctly widened towards apex; frontal tubercles mostly absent, when present AR 2.5–3.8, LR11.45–2.02 and mostly 1–6 sensilla chaetica on P2; when AR higher than 3.5, LR1 higher than 1.59	10
6	AR 1.99–2.76; LR1 1.60–1.7	7
–	AR 3.54–5.12; LR1 1.12–1.39	9
7	Wing length 2.43–2.65; anal point widest at the base and slightly constricted at 1/3 distance from the base	C.beardi Liu, sp. nov.
–	Wing length 2.05–2.37; anal point is parallel-sided with a rounded apex	8
8	AR 1.99–2.37; thorax brown with dark brown spots	C.parallelus Liu, sp. nov.
–	AR 2.48–2.76; thorax yellowish brown without spots	C.dentatus Liu, sp. nov.
9	AR 4.35–5.12, LR1 1.12–1.21; gonostylus strongly widened towards apex	C.stylifera Johannsen, 1908
–	AR 3.54–4.03, LR1 1.23–1.39; gonostylus slightly widened towards apex	C.digitatus (Malloch, 1915)
10	LR1 1.31–1.67, frontal tubercles absent	11
–	LR1 1.45–2.02, when lower than 1.7 frontal tubercles present	13
11	Wing length 4.99–5.78 mm; LR1 1.48–1.67	C.eminentia Mason, 1986
–	Wing length 1.47–4.75 mm; LR1 1.31–1.55	12
12	Wing length 4.05 mm; gonostylus widest width near apex	C.ramus Mason, 1986
–	Wing length 2.31–2.59 mm; gonostylus gradually tapered and pointed apically	C.taylorensis Liu, sp. nov.
13	Wing length 1.47–1.8 mm, gonostylus only ~ 2× as long as wide	14
–	Wing length 1.9–5.6 mm, gonostylus at least 2.5× as long as wide	5
14	Wing length 1.8 mm, AR 2.75, frontal tubercles present	C.parafulvus Beck & Beck, 1964
–	Wing length 1.47–1.69 mm, AR 2.29–2.49, frontal tubercles absent	C.ferringtoni Liu, sp. nov.
15	Gonostylus ~ 2.8–3.2× as long as wide, anal point slightly spatulate apically, frontal tubercles absent	C.ponderosus (Sublette, 1964)
–	Gonostylus ~ 2.7× as long as wide, anal point tapering parallel-sided or slightly spatulate, frontal tubercles present or absent	16
16	Frontal tubercles absent, wing length 2.0–5.6 mm	17
–	Frontal tubercles present, wing length 1.8–3.2 mm or 5.1–5.3 mm	18
17	Gonostylus rounded apically, wing length 2.5–5.6 mm	C.curryi Mason, 1986
–	Gonostylus tapering to the apex, wing length 2.02 mm	C.absum Liu, sp. nov.
18	Wing length 5.1–5.3 mm; AR 2.5–2.6	C.conus Mason, 1986
–	Wing length 1.8–3.2 mm; AR 2.5–3.4	19
19	LR1 1.56–1.73, mean 1.64; anal point slightly spatulate apically	C.imitans Sæther, 2009
–	LR1 1.60–2.02, mean 1.78, anal point parallel-sided	C.fulvus (Johannsen, 1905)

Full text

We recently published six new species of Cryptochironomus Kieffer (Diptera, Chironomidae) from the Nearctic region. However, the authors made some errors in couplet 4, in that the values given in the second alternative of the couplet do not agree with in the least the values that appear further down the key (couplet 7, etc.), and parentheses were missing in authorities of three species. In this corrigendum, we revise the key to Nearctic males of Cryptochironomus. We thank Dr. Martin Spies (Zoologische Staatssammlung München, München) for kindly pointing out the error in contradictions between couplets.

Key to Nearctic males of Cryptochironomus Kieffer

The key adapted from Sæther 2009.

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