Haematotropis tysoni, De & Bueno-Villegas & Rafael, 2021

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, Zootaxa 5064 (1), pp. 1-71 : 58-61

publication ID	https://doi.org/ 10.11646/zootaxa.5064.1.1
publication LSID	lsid:zoobank.org:pub:65B0A21A-8B8D-4B55-B6F0-8BE60EB8D3BC
DOI	https://doi.org/10.5281/zenodo.5815212
persistent identifier	https://treatment.plazi.org/id/03876671-FFC8-1500-13C5-CB8DFEECA484
treatment provided by	Plazi
scientific name	Haematotropis tysoni
status	sp. nov.

Treatment

Haematotropis tysoni sp. nov.

Figs 42 View FIGURE 42 , 43 View FIGURE 43 , 49F View FIGURE 49 , 51 View FIGURE 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 View FIGURE 43 ), projected towards the solenomere; solenomere short with acuminated apex, projected towards the coxa ( Fig. 43A, C View FIGURE 43 ).

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 View FIGURE 42 ).

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 View FIGURE 42 ). 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 View FIGURE 2 ). Lateral margins of ring 2 projected posteriad, sickle-shaped ( Fig. 42A, B View FIGURE 42 ). Gonopodal aperture elliptical, approximately 1 mm wide and 0.7 mm long at midpoints. Telson ( Fig. 42D View FIGURE 42 ) 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 View FIGURE 43 ); acropodite elongated, about four times as long as prefemur; median region expanded, cup-shaped in ventral view, with a concavity and cavity ( Fig. 43D View FIGURE 43 ); distal region of acropodite lightly sinuous, not bifurcate, curved ventrally at a 65° angle ( Fig. 43A–D View FIGURE 43 ); VP1 emarginated on posterior region, not very evident, not exceeding the width of ventral region of acropodite, in lateral view ( Fig. 43A, C View FIGURE 43 ); VP2 absent; LP1 long and spatulate, projected towards the solenomere ( Fig. 43A, C View FIGURE 43 ), 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 View FIGURE 43 ).

Remarks. Similar to H. jurutiensis sp. nov. ( Fig. 30A–D View FIGURE 30 ) and H. poranga sp. nov. ( Fig. 40A–D View FIGURE 40 ) 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 View FIGURE 41 ), while in H. jurutiensis sp. nov., LP1 is short with acuminated apex, almost vestigial ( Fig. 31A–D View FIGURE 31 ), and LP1 long and spatulate in H. tysoni sp. nov. ( Fig. 43A–D View FIGURE 43 ).