Haematotropis bella ( Attems, 1937 )

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 : 11-15

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.5653719
persistent identifier	https://treatment.plazi.org/id/03876671-FFFB-1532-13C5-CEF2FDC3A34E
treatment provided by	Plazi
scientific name	Haematotropis bella ( Attems, 1937 )
status

Treatment

Haematotropis bella ( Attems, 1937) View in CoL

Figs 5–8 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 , 47B View FIGURE 47 , 50 View FIGURE 50

Aphelidesmus bellus Attems, 1937: 135 View in CoL , fig. 173.

Aphelidesmus bellus: Schubart (1945: 48) View in CoL (list).

Haematotropis bellus: Jeekel (2000: 81) View in CoL (list).

Haematotropis bella: Golovatch et al. (2004: 65) View in CoL (key).

Diagnosis. Adult males of H. bella differ from other Haematotropis species based on the following combination of characters: gonopod with LP1 tapered, with apex projected towards the coxa ( Figs 6B–D View FIGURE 6 , 8A, B View FIGURE 8 ); VP1 present; solenomere short, triangular, projected towards the coxa ( Figs 6A, C View FIGURE 6 , 8A, B View FIGURE 8 ).

Material examined. Syntype ♂ ( NHMW MY3414 View Materials ), Brasil, Pará, near Santarém city, Fazenda Taperinha, 1927, Dr. Zernyleg. Topotype ♂, Pará, Santarém, Fazenda Taperinha, Expedição Permanente Amazônia, 1–11.II.1968, ( MZUSP 948 View Materials ) .

Redescription.

Size and form (topotype ♂). Body length = 37 and wide = 8 mm. TL/GW = 4.6.

Coloration (long preserved in 70% ethanol). Head, prozonite, metazonite and telson brown, antennomeres and posterior region of the epiproct orange, legs yellow, with hemispheric spot in posterior midline of basal region and polygonal areas on most metazonites ( Figs 5A–D View FIGURE 5 , 7A–E View FIGURE 7 ).

Head. Dorsal surface smooth and shiny, without microgranulations.

Trunk. Collum 3.9 mm long, 8.6 mm wide; dorsal surface of all rings smooth and shiny, without microgranulations; posterolateral margins strongly concave, sickle-shaped ( Figs 5A, B View FIGURE 5 , 7B, C View FIGURE 7 ). Rings 2–19: prozonite and metazonite smooth and shiny, without microgranulation on 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 ( Fig. 5A, B View FIGURE 5 ). Gonopodal aperture elliptical, aproximately 2.10 mm wide and 1.17 mm long at midpoints. Telson smooth and shiny, without microgranulations.

Legs. Smooth and shiny, without microgranulations.

Gonopods. Right gonopod structure as follows: coxa with lateral swelling at midlength ( Figs 6A, C View FIGURE 6 , 8A, B View FIGURE 8 ); acropodite elongated, about four times as long as prefemur; median region expanded, cup-shaped in ventral view, with a concavity and cavity ( Fig. 6D View FIGURE 6 ); distal region of acropodite lightly sinuous, not bifurcate, curved ventrally at a 80° angle ( Figs 6A–D View FIGURE 6 ; 8A, B View FIGURE 8 ); VP1 emarginated on posterior region, evident, exceeding the width of ventral region of acropodite, in lateral view ( Figs 6A, C View FIGURE 6 , 8A, B View FIGURE 8 ); VP2 absent; LP1 tapered and slightly curved apically, projected towards the coxa ( Figs 6B–D View FIGURE 6 , 8A, B View FIGURE 8 ); LP2, LP3 and DP absent. Opening of solenomere located at distal end of acropodite ( Figs 6A, C View FIGURE 6 , 8A, B View FIGURE 8 ). Solenomere short, triangular, projected towards the coxa ( Figs 6A, C View FIGURE 6 , 8A, B View FIGURE 8 ).

Remarks. H. bella shares gonopodal morphology with H. callipa ( Fig. 4A–C, E View FIGURE 4 ), H. callyi sp. nov. ( Fig. 23A–D View FIGURE 23 ) and H. macapa ( Fig. 12A–D View FIGURE 12 ) but differs mainly by having the distal region of the acropodite not bifurcate ( Fig. 6A–D View FIGURE 6 ), unlike the other species ( Figs 4A View FIGURE 4 , 12A, C View FIGURE 12 , 23B–D View FIGURE 23 ). The posterolateral margins of the first rings of H. bella are strongly concave ( Fig. 5A, B View FIGURE 5 ), not observed in the remaining species ( Figs 3A, B View FIGURE 3 , 11A, B View FIGURE 11 ; 22A, B View FIGURE 22 ).

Variations. H. bella has slight intraspecific variations in the same locality. The colouring of metazonite and prozonite may be dark brown ( Fig. 5A–D View FIGURE 5 ) or light brown, almost yellow ( Fig. 7A–E View FIGURE 7 ).

According to Attems (1937), H. bella has antennae blood red. Nevertheless, through the photos provided by NHMW and of topotype ♂, we observed the coloration to be light brown, almost orange, obviously due to long preservation in alcohol .

Distribution. Brazil: Pará ( Fig. 50 View FIGURE 50 ).