Haematotropis tysoni De & Bueno-Villegas & Rafael 2021, sp. nov.
Creators: name: De, Thaís M.
name: Bueno-Villegas, Almeida Julián
name: Rafael, José A.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Aphelidesmidae
Haematotropis
Haematotropis tysoni

description: Haematotropis tysoni sp. nov.
Figs 42, 43, 49F, 51
Diagnosis. Adult males of H. tysoni sp. nov. differ from other species of Haematotropis based on the following combination of characters: gonopod with long and spatulate LP1 (Fig. 43A–D), projected towards the solenomere; solenomere short with acuminated apex, projected towards the coxa (Fig. 43A, C).
Material examined. Holotype ♂, Brasil, Amazonas, Barreirinha, próximo a aldeia Porto Alegre, nas calhas do rio Andirá, 20.IV.2018, Alexandre Tyson leg. (INPA).
Paratype: 1 ♂, Brasil, Amazonas, Barreirinha, próximo a aldeia Porto Alegre, nas calhas do rio Andirá, 20.IV.2018, Alexandre Tyson leg. (INPA).
Description.
Size and form (holotype ♂). Body length = 38 and wide = 8 mm. TL/GW = 4.75.
Coloration (long preserved in 70% ethanol). Head, prozonite, metazonite and telson dark brown, legs brown, antennomeres, sides of metazonite and paranota orange (Fig. 42A–D).
Head. Dorsal surface smooth and shiny, without microgranulations.
Trunk. Collum 3.0 mm long, 8.0 mm wide; dorsal surface of all rings smooth and shiny, without microgranulation; posterolateral margins strongly concave, sickle-shaped (Fig. 42D). Rings 2–19: prozonite and metazonite smooth and shiny, without microgranulation in dorsal region of all rings. Anterolateral teeth on paranota of rings 2–4 (Fig. 2G). Lateral margins of ring 2 projected posteriad, sickle-shaped (Fig. 42A, B). Gonopodal aperture elliptical, approximately 1 mm wide and 0.7 mm long at midpoints. Telson (Fig. 42D) smooth and shiny, without microgranulations.
Legs. Smooth and shiny, without microgranulations.
Gonopods. Left gonopod structure as follows: coxa with lateral swelling at midlength (Fig. 43A, C); acropodite elongated, about four times as long as prefemur; median region expanded, cup-shaped in ventral view, with a concavity and cavity (Fig. 43D); distal region of acropodite lightly sinuous, not bifurcate, curved ventrally at a 65° angle (Fig. 43A–D); VP1 emarginated on posterior region, not very evident, not exceeding the width of ventral region of acropodite, in lateral view (Fig. 43A, C); VP2 absent; LP1 long and spatulate, projected towards the solenomere (Fig. 43A, C), LP2, LP3 and DP absent. Opening of solenomere not located at distal end of acropodite. Solenomere short, acuminated apex and projected towards the coxa (Fig. 43A, C).
Remarks. Similar to H. jurutiensis sp. nov. (Fig. 30A–D) and H. poranga sp. nov. (Fig. 40A–D) in the posterolateral margins being strongly concave and the tegument dark brown. The differences are mainly the LP1 hemispheric in H. poranga sp. nov. (Fig. 41A–D), while in H. jurutiensis sp. nov., LP1 is short with acuminated apex, almost vestigial (Fig. 31A–D), and LP1 long and spatulate in H. tysoni sp. nov. (Fig. 43A–D).
Distribution. Brazil: Amazonas (Fig. 51).
Etymology. This new species is dedicated to its collector and the first author’s friend Tyson Ferreira.
New combination
description: Published as part of De, Thaís M., Bueno-Villegas, Almeida Julián & Rafael, José A., 2021, Taxonomic review of the millipede genus Haematotropis Jeekel, 2000 (Diplopoda, Polydesmida, Aphelidesmidae, Aphelidesminae) with descriptions of thirteen new species, pp. 1-71 in Zootaxa 5064 (1) on pages 58-61, DOI: 10.11646/zootaxa.5064.1.1, http://zenodo.org/record/5653702