Arctodiaptomus Kiefer, 1932

Elías-Gutiérrez, Manuel, Jerónimo, Fernando Martínez, Ivanova, Natalia V., Valdez-Moreno, Martha & Hebert, Paul D. N., 2008, DNA barcodes for Cladocera and Copepoda from Mexico and Guatemala, highlights and new discoveries, Zootaxa 1839 (1), pp. 1-42 : 13

Genus Arctodiaptomus Kiefer, 1932

Arctodiaptomus dorsalis probably represents another species complex athough Suárez-Morales & Elías-Gutiérrez (2001) recently synonymized Arctodiaptomus dampfi Brehm from Peten Lake with A. dorsalis , originally described from Louisiana. Barcode analyses indicated that the population of A. dorsalis from Peten Lake ( Guatemala) is conspecific with those from the Yucatan, but also revealed the likely occurrence of at least four species in this complex. The population from Lachua Lake ( A. cf. dorsalis 1) showed nearly 7% COI divergence from the Yucatan/ Peten Lake populations. Two additional lineages showing high COI divergence were also collected; the first one from the Sonora desert and the second one from the central region ( Fig. 1.5 ). No morphological characters were found to distinguish these four lineages.

Figures

FIGURE 1. 1.1 Sampling localities for all taxa; 1.2 Distribution of C. rigaudi complex: ⊕ C. cf. rigaudi 1, ∧ C. cf. rigaudi 2, ′ C. cf. rigaudi 3; 1.3 Distribution of C. cf. dubia; 1.4 Moina micrura group: M. cf. micrura 1, M. cf. micrura 2, ® M. cf. micrura 3; 1.5 Arctodiaptomus dorsalis: ℜ A. cf. dorsalis, ρA. dorsalis, A. cf. dorsalis 1 from Lachua Lake, ′ A. cf. dorsalis 2; 1.6 Mastigodiaptomus albuquerquensis: ♦M. albuquerquensis, ⊕ M. cf. albuquerquensis.