Taxonomic review of the millipede genus Haematotropis Jeekel, 2000 (Diplopoda, Polydesmida, Aphelidesmidae, Aphelidesminae) with descriptions of thirteen new species Author De, Thaís M. Author Bueno-Villegas, Almeida Julián Author Rafael, José A. 0000-0002-0170-0514 jarafael@inpa.gov.br text Zootaxa 2021 2021-11-08 5064 1 1 71 journal article 2821 10.11646/zootaxa.5064.1.1 21469968-9bc4-4c70-bbaa-f15af634584b 1175-5326 5653702 65B0A21A-8B8D-4B55-B6F0-8BE60EB8D3BC Haematotropis disjuncta Golovatch, Hoffman & Spelda, 2004 Figs 9 , 10 , 47C , 50 Haematotropis disjuncta Golovatch, Hoffman & Spelda in Golovatch et al., 2004: 64 , figs 47–52. Diagnosis. Adult males of H . disjuncta differs from other Haematotropis species based on the following combination of characters: gonopod with LP1 long and tapered, strongly curved apically, projected towards the mesal region of gonopod ( Fig. 10A–D ); DP present with apex not bifurcate ( Fig. 10A–C ); solenomere long, apex acuminated, projected towards the LP1 ( Fig. 10A–C ). Material examined. Holotype ♂ , Brasil , Amapá , road-km 94 of BR-156 highway, in rotten leaves of palms Elaeis oleifera (Kunth) Cortés and E. guineensis Jacq. , 14.II.2000 , E.L. Oliveira leg. ( IEPA ). Paratypes : All from Brasil : 2 ♂♂ , 3 ♀♀ , same data as holotype ( IEPA ); 1 ♂ , 2 ♀♀ ( INPA ). Additional material examined: All from Brasil , Amapá , Macapá : 3 ♂♂ , Fazendinha IEPA , Parque Zoobotânico, I.2001 , P. Magno leg. ( MNRJ 12012 ); 1 ♂ , 1 ♀ , same data ( MNRJ 12011 ); 1 ♂ , Fazendinha, Distrito, campus do IEPA , 17–20.IX.2004 , C.J.F. Costa & P. Magno leg. ( MNRJ 12010 ) . Redescription. Size and form ( holotype ♂ ). Body length = 42 and wide = 7 mm . TL/GW = 6. Coloration (long preserved in 70% ethanol). Head, prozonite, metazonite and telson brown, antennomeres, paranota and posterior region of the epiproct orange, legs yellow ( Fig. 9A–E ). Head. Dorsal surface smooth and shiny, without microgranulations. Trunk. Collum 3 mm long, 7 mm wide; dorsal surface of all rings smooth and shiny, without microgranulations; posterolateral margins slightly concave ( Fig. 9A, B ). 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 not projected posteriad ( Fig. 9A, B ). Gonopodal aperture elliptical, approximately 1.5 mm wide and 0.5 mm long at midpoints. Telson ( Fig. 9D ) smooth and shiny, without microgranulations. Legs. Smooth and shiny, without microgranulations. Gonopods. Right gonopod structure as follows: coxa with lateral swelling at midlength ( Fig. 10C ); acropodite elongated, about four times as long as prefemur; median region expanded, cup-shaped in ventral view, with a concavity and cavity ( Fig. 10D ); distal region of acropodite slightly sinuous, not bifurcate, curved ventrally at a 70° angle ( Fig. 10A–C ); VP1 emarginated on posterior region, evident, exceeding the width of ventral region of acropodite, in lateral view ( Fig. 10A, C ); VP2 absent; LP1 long and tapered, strongly curved apically, projected towards the mesal region of gonopod ( Fig. 10A–D ), LP2 and LP3 absent; DP tapered, sinuous and projected towards the gonopod apical region ( Fig. 10A–C ). Opening of solenomere located at distal end of acropodite ( Fig. 10A–C ). Solenomere with long, acuminated apex, projected towards LP1 ( Fig. 10A–C ). Remarks. H . disjuncta is very similar to H . disjunctoides sp. nov. in the conformation of both gonopods and the presence of DP ( Figs 10A–D , 26A–D ). However, the apex of DP not being bifurcate and not surpassing the dorsal distal region of the acropodite ( Fig. 10A–D ) distinguishes H . disjuncta from H . disjunctoides sp. nov. , in which DP bifurcates irregularly and extends beyond the dorsal distal region of the acropodite ( Fig. 27A–C ). H . disjuncta occurs mainly on the north shore of the Amazon River ( Fig. 50 ) while H . disjunctoides sp. nov. occurs on the south shore ( Fig. 52 ), supporting the separation of the two species. Distribution. Brazil : Amapá ( Fig. 50 ).