Leptherpum carinovatum ( Attems, 1898 )

Bouzan, Rodrigo S., Means, Jackson C., Ivanov, Kaloyan, Almeida, Thaís Melo de, Brescovit, Antonio Domingos & Iniesta, Luiz Felipe M., 2022, Three new species of the Amazonian millipede genus Leptherpum (Polydesmida: Chelodesmidae), Zoologia (e 22020) 39, pp. 1-18 : 3

Leptherpum carinovatum ( Attems, 1898)

Figs 3–9, 11, 13 , 15–16 , 23–28 , 53

Leptodesmus carinovatus Attems, 1898: 376 , plate 6, figs 127– 129, plate 7, fig. 154 (two males syntypes from Manaus (3°04’49.1”S; 60°00’19.4”W), Amazonas, Brazil, Bicego leg., deposited at ZMH, examined). Attems, 1901: 85; Brölemann, 1904: 74; Brölemann, 1909: 64.

Dirhabdophallus carinovatus : Pocock, 1909: 165.

Leptherpum carinovatum : Attems, 1931: 49, fig. 71; Attems, 1938: 91, fig. 104; Jeekel, 1963: 127, figs 39–40; Jeekel, 2009: 24.

Material examined. BRAZIL: Amazonas: Manaus (3°04’ 49.1”S; 60°00’19.4”W), 2 males syntypes, Bicego leg. ( ZMH) ; 3 males, 1 female, xi.1983 – iv.1984, J. Adis leg. ( INPA 395 ) ; Rio Preto da Eva , Região Metropolitana, (2°41’51.2”S; 59°41’47.4”W), 2 males, 17.viii.2018, A.P. dos Santos leg. ( IBSP 8300 ) .

Historical records. GUYANA: Upper Demerara-Berbice: Canister Falls; (4°48’00.0”N; 58°26’00.0”W), Cattle Trail Survey, 1 male, vi.1920, A.A. Abraham leg. ( BMNH) ( Jeekel, 1963); East Berbice-Corentyne: source of Kutari (= Kutari River) (2°20’34.3”N; 56°52’06.4”W), 2 males, vi.1936, C.A. Hudson leg. ( BMNH) ( Jeekel, 1963); SURINAME: Sipaliwini: Mt. Janbasigodo, 1 male, 20.xii.1902, P.J. de Kock leg. ( RMNH) ( Jeekel, 1963); Tugumutu (= Toekoemoetoe) (4°12’00.0”N; 55°54’00.0”W), 1 male, 1 female, 10−14.ii.1903, P.J. de Kock leg. ( RMNH) ( Jeekel, 1963); Para: Mapane (= Mapane Kreek), savanna forest (5°28’00.0”N; 54°41’00.0”W), 5 males, 1 female, 10.xii.1953, D.C. Geijskes leg. ( ZMA) ( Jeekel, 1963).

Distribution. Guyana, French Guiana, Suriname, Venezuela, and the Brazilian state of Amazonas ( Fig. 53 ).

Remarks. According to the original description ( Attems 1898), the type material of Leptodesmus carinovatus includes two male specimens. However, the ZMH storage container has a single male specimen with intact gonopods, and a microvial containing the dissected gonopods of the second male (N. Duperre, pers. comm.).

Figures

Figure 53. Distribution map of Leptherpum Attems, 1931 species. Taxa without precise geographic coordinates, i.e., L. californicum, L. huebneri, and L. schomburgkii, are not shown.

Figures 3−8. General somatic features of L. carinovatum (Attems, 1898). (3) male (IBSP 8300), head, oral view; (4) male (IBSP 8300), gnathochilarium, ventral view; (5) male (IBSP 8300), antenna, lateral view; (6) male (IBSP 8300), coxae of 2nd pair of legs, showing the gonopores, ventral view; (7) male syntype (ZMH), detail of body rings 6–7, ventral view; (8) male (IBSP 8300), body ring 7, detail of gonopod aperture, ventral view. The arrows point to the gonopores. Scale bars: 3−5, 8 = 1 mm; 6 = 500 µm; 7 = 2.5 mm.

Figures 9−14. General somatic features of Leptherpum Attems, 1931. (9), (11), (13) L. carinovatum (IBSP 8300), male, metazonites, dorsal view. (9) body ring 8; (11) body ring 9; (13) detail of tubercles of body ring 9; (10), (12), (14) Leptherpum tialaura sp. nov. (male holotype, IBSP 7972), metazonites, dorsal view; (10) body ring 8; (12) body ring 9; (14) detail of tubercles of body ring 9. Scale bars: 9−11 = 1 mm; 12 = 2 mm; 13 = 100 µm; 14 = 200 µm.

Figures 15−18. Gonopodal features of Leptherpum Attems, 1931. (15) L. carinovatum (IBSP 8300), male, right gonopod, mesal view; (16) L. carinovatum (IBSP 8300), male, left gonopod, ectal view; (17) L. tialaura sp. nov. (IBSP 7952), male, left gonopod, mesal view; (18) L. tialaura sp. nov. (IBSP 7952), male, right gonopod, ectal view. The arrow refers to the spiniform process. Scale bars: 15−18 = 500 µm.

Figures 23−28. Leptherpum carinovatum (Attems, 1898), male syntype (ZMH). (23) anterior body rings, dorsal view; (24) midbody rings, dorsal view; (25) posterior body rings, dorsal view; (26), (27) left gonopod, mesal view, different gonopod tilt degrees; (28) left gonopod, ectal view. Scale bars: 23−24 = 5 mm; 25 = 2.5 mm; 26−28 = 100 µm.