Camptomorpha atypha ( Chamberlin, 1941 )

Golovatch, Sergei I. & Bouzan, Rodrigo S., 2025, Review of the South American millipede genus Camptomorpha Sivestri, 1897, with the description of a new species from Peru (Diplopoda: Polydesmida: Chelodesmidae), Arthropoda Selecta 34 (1), pp. 1-15 : 3

Camptomorpha atypha ( Chamberlin, 1941)

Fig. 2 .

Ptyxesmus atyphus Chamberlin, 1941: 489 , figs 101 and 102. HolotYpe ♂, AMNH, but presentlY misplaced [Hoffman, in litt.].

BRIEF DESCRIPTIVE NOTES (after Chamberlin [1941]). Width 5.0 mm. Coloration dark olive dorsally, paraterga in part more brownish, legs and antennae dark brown. Collum acutely narrowed on each side ( Fig. 2A ). Paraterga broadly and regularly rounded, rimmed throughout; caudal corners drawn past rear tergal margins only in caudal body third. Epiproct simple, short and finger-shaped. ♂ legs ventrallY with prefemora bearing semi-circular bulges distally and with tibiae carrying chelae apically.

Gonopods ( Fig. 2B, C ) with both prefemoral process (PfP) and acropodite (A) subequal in length, A being relatively simple and leaf-shaped, with several grooves at external margin, apex directed basally; PfP armed and broader, with an irregular internal margin and a small ascending process near middle; solenomere (sl) simple.

DISTRIBUTION. Peru, Loreto Dept., Iquitos , 3°44′56.83″S 73°15′13.79″W [ Chamberlin, 1941] .

Hoffman [in litt.] provided a sketch of a gonopod of this species from a near-topotype, reproduced here in Fig. 2C . He also recorded C. atypha from near Tabatinga, Brazil, as well as Rio Yanayacu near Iquitos and Rio Marañon ca 2 km above Nauta, Peru.

Figures

Fig.2. Camptomorpha atypha (Chamberlin, 1941), ♂ holotYpe (A, B) and ♂ near-topotYpe (C) from near Iquitos.A — outline of collum, dorsal view; B, C — left gonopod, subcaudal and mesal views, respectively. Designations:A — acropodite; PfP — prefemoral process; sl — solenomere. After Chamberlin [1941] (A, B) and Hoffman [in litt.] (C). Рис. 2. Camptomorpha atypha (Chamberlin, 1941), голотип ♂ (A, B) и почти топотип ♂ иЗ окрестностей Iquitos. A — контур коллума, сверху; B, C — левый гонопод, соответственно примерно сЗади и иЗнутри. ОбоЗначениЯ:A — акроподит; PfP — префеморальный отро- сток; sl — соленомер. По: Chamberlin [1941] (A, B) и Hoffman [in litt.] (C).