Pseudobalucopsylla, Mu & Huys, 2021

Mu, Fanghong & Huys, Rony, 2021, A new species of Helmutkunzia Wells & Rao, 1976 from an intertidal sandy beach in Xiamen, China and proposal of Pseudobalucopsylla gen. nov. (Copepoda Harpacticoida, Miraciidae), Zootaxa 5051 (1), pp. 487-505 : 502-503

Key to species of Pseudobalucopsylla gen. nov.

– P5 exopod ♀ at least 1.8 times as long as maximum width; inner distal element of P5 endopodal lobe ♀ at most twice length of inner one............................................................................................2.

2. P5 exopod ♀ less than twice as long as maximum width; innermost element markedy swollen in proximal half; P5 exopod ♂ distal inner seta (= 2 nd from inner margin) slightly longer than proximal inner seta.................... P. obscura sp. nov.

– P5 exopod ♀ at least twice as long as maximum width; innermost element setiform and not markedly swollen at base; P5 exopod ♂ distal inner seta (= 2 nd from inner margin) at least twice longer than proximal inner seta........................3.

3. P5 exopod ♀ rectangular, with virtually straight inner and outer margins, about 2.5 times as long as maximum width; P5 endopodal lobe ♀ extending beyond middle of exopod; P5 exopod ♂ distal inner seta (= 2 nd from inner margin) 3.6 times length of proximal inner seta; P5 endopodal lobe ♂ extending beyond middle of exopod................ P. costaricensis sp. nov.

– P5 exopod ♀ oval, with convex inner and outer margins, about twice as long as maximum width; P5 endopodal lobe ♀ not extending to middle of exopod; P5 exopod ♂ distal inner seta (= 2 nd from inner margin) 2.5 times length of proximal inner seta; P5 endopodal lobe ♂ extending to about middle of exopod...................................... P. mielkei sp. nov.