Camptomorpha dorsalis Silvestri, 1897

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 : 4

Camptomorpha dorsalis Silvestri, 1897

Fig. 4 .

CAmptOmOrpHA dOrsAlis Silvestri, 1897b: 10 , figs 29–31 (sYntYpes of both sexes, ZMT); Attems, 1938: 70; Hoffman, 1953: 123, fig. 1; Jeekel, 1971: 252.

LeptOdesmus dOrsAlis — Attems, 1899: 427.

CAmptOmOrpHA perprOximA Silvestri, 1897b: 11 , figs 32–33, syn.n. (sYntYpes of both sexes, ZMT, after Hoffman [in litt.]).

LeptOdesmus perprOximA (sic!) — Attems, 1899: 427.

CAmptOmOrpHA perprOximA — Attems, 1938: 71; Hoffman, 1953: 123.

BRIEF DESCRIPTIVE NOTES (after Silvestri [1897b] and Hoffman [in litt.]). Length 32–33 mm, width 4.0– 4.6 mm. Coloration red-grey or brown with a yellowish axial stripe from collum to tip of epiproct, sides, entire epiproct and legs sometimes yellow; metaterga, venter and legs yellowish to brown and reddish-yellow; prozona, except anteriormost ones, sometimes with two whitish paramedian spots; paraterga sometimes yellowish white both dorsally and ventrally. Paraterga broadly and regularly rounded, rimmed throughout, paraterga 2 sometimes with a small lateral tooth towards anterolateral corner; caudal corners increasingly acute from ring 5 on ( Fig. 4A ). Epiproct short and finger-shaped, with a paramedian pair of small apical claws directed caudoventrallY ( Fig. 4C ). ♂ legs 3–20 ventrallY with prefemora bearing semi-circular bulges distally and with tibiae carrYing chelae apicallY ( Fig. 4B ). ♂ coxae 2 enlarged and apicallY truncate; ♂ coxae 3 ( Fig. 4B ) also enlarged and apicallY truncate, denselY setose, almost in contact mediallY; ♂ coxae 4 and 5 produced ventrad into prominent, blunt, rounded lobes.

Gonopods ( Fig. 4D–I ) with prefemoral process (PfP) and acropodite (A) subequal in length, both being rather simple, unarmed, with spatuliform apices; PfP strongly twisted; solenomere (sl) simple, helicoid and slender, subflagelliform distallY.

DISTRIBUTION. For C. dOrsAlis : Ecuador, San José, 1°29′03.1″S 80°19′59.7″W [ Silvestri, 1897b]. Hoffman [in litt.] elucidated the type locality as actually lying at Rio San José , ca 25 km NW of Gualaquiza.

For C. perprOximA : Ecuador, Valle de Zamora (Santiago Zamora = Zamora Chinchipe), 4°03′44.7″S 78°56′55.7″W [ Silvestri, 1897b] .

JUSTIFICATION OF SYNONYMY. Hoffman [in litt.] recorded and depicted ♂ material of this species from Cushuene, Pastaza Prov. ( Fig. 4A–E ) and Hacienda Santa Inés (1º25′ S 78º12′ W) on Rio Pastaza between Rio Mapoto and Rio Topo, Tungurahua Prov. ( Fig. 4F, J ), Ecuador, comparing it directly with a syntype of C. perprOximA ( Fig. 4G, H ). The results unequivocally prove the synonymy and quite a vast distribution of C dOrsAlis (= C. perprOximA , syn.n.) in Ecuador.

Figures

Fig. 4. CAmptOmOrpHA dOrsAlis Silvestri, 1897, ♂ from Cushuene, Pastaza Prov., Ecuador (A–E), ♂ from Santa Inés, Tungurahua Prov., Ecuador (F, I), and ♂ sYntYpe of C. perprOximA (G, H). A — left half of ring 10, dorsal view; B — leg 3 in situ, caudal view; C — telson, lateral view; D–F, I — left gonopod, lateral ventral, mesal and lateral views, respectively; G, H — left and right gonopods, respectively, mesal views. Designations:A — acropodite; PfP — prefemoral process; sl — solenomere.After Hoffman [in litt.]. Рис. 4. CAmptOmOrpHA dOrsAlis Silvestri, 1897, ♂ иЗ Cushuene (пров.Пастаса, Эквадор) (A–E), ♂ иЗ Santa Inés (пров. Тунгурауа, Эквадор) (F, I), и синтип ♂ C. perprOximA (G, H). A — леваЯ половина туловиЩного сегмента 10, сверху; B — нога 3 на месте, сЗади: C — тельсон, сбоку; D–F, I — левый гонопод, соответственно сбоку, сниЗу, иЗнутри и сбоку; G, H — соответственно левый и правый гоноподы, иЗнутри. ОбоЗначениЯ:A — акроподит; PfP — префеморальный отросток; sl — соленомер. По: Hoffman [in litt.].