Branchinecta Müller, 1788

Rogers, D. Christopher & Aguilar, Andres, 2020, Fig. 8 in Stiatoandricus nievesaldreyi Cuesta-Porta & Melika & Nicholls & Stone & Pujade-Villar 2022, Zoological Studies 59 (14), pp. 1-17 : 8-9

Branchinecta Müller, 1788 (sensu Rogers & Coronel, 2011)

Branchinecta Müller, 1788 ; Packard 1874, 1883; Verrill 1869; Shantz 1905; Daday 1910; Linder 1941; Belk & Brtek 1995; Brtek & Mura 2000; Belk & Schram 2001; Maeda-Martinez et al. 2002; Rogers & Coronel 2011; Rogers 2013

Artemis Thompson, 1834

Branchiopsyllus Sars, 1897 ; Linder 1941; Belk 1982 (fide Vekhov 1989)

Artemiella Daday , (fide Linder 1932, 1941)

Diagnosis: Genital segments not expanded, each gonopod extending ventrolaterally, visible in dorsal view, with rigid base bearing a spiniform medial projection. Gonopod eversible portion with one or two denticulate tubercles apically or subapically. Apex truncated. Abdominal segment I lacking a ventral chitinized plate. Brood pouch variable, may be elongate, pedunculate, conic or pyriform. Females may have corneous or papillose cephalic projections. Type by monotypy Branchinecta paludosa ( Müller, 1788) .

Comments: There are 52 species presently recognized (Rogers 2013; Rogers and Lorenz 2015) in seven species groups. Due to the lack diagnosis or definition in the work of Brtek and Mura (2000), we have made no effort to associate our species groups with theirs; any attempt would be pure speculation.

Subdivision: All the following species groups and incertae sedis taxa are part of Branchinecta . The shared characters between the ferox and the raptor groups, and the fact that these groups were consistently basal in our analyses, suggest that Branchinecta may have had a Eurasian origin, and via a stochastic dispersal event, invaded North America and rapidly differentiated across that continent in a manner similar to Streptocephalus ( Daniels et al. 2004) .