Campsurus janae, Molineri & Salles, 2017

Molineri, Carlos & Salles, Frederico F., 2017, Review of selected species of Campsurus Eaton 1868 (Ephemeroptera: Polymitarcyidae), with description of eleven new species and a key to male imagos of the genus, Zootaxa 4300 (3), pp. 301-354 : 323

Campsurus janae sp. nov.

( Figs. 75–76 , 170 )

Type material. Holotype ♂ i from COLOMBIA, Amazonas, Leticia, caño km 11 hacia Tarapacá , (aprox. S 4° 7' / W 69° 57'), 93 m, 28.i.1999, light trap 18–20 hs, MC Zúñiga, E Domínguez & C Molineri cols. (MUSENUV). Paratypes: 3 ♂ si (pharate imago) from BRAZIL, Amazonas, Manaus, Reserva Ducke, Igarapé afluente do Acará, S 02° 57'07" / W 59° 57'28", pennsylvania light trap, 17.v.2008, N Hamada col. ( CZNC).

Male imago. Length (mm [subimago measurements in brackets]): body, 7.0 [7.0–7.6]; fore wing, 6.5 [6.6]; hind wing, 2.8 [2.9–3.0]; fore leg, 4.0; cerci, 17.0 [broken at apex]. General coloration yellowish white, completely shaded with gray ( Fig. 170 ). Head completely shaded with black dorsally. Antenna yellowish, shaded with gray. Thorax ( Fig. 170 ). Pronotum yellowish, shaded completely with black except on median zones of anterior and posterior portions, medial line blackish; prosternum and propleura yellowish, shaded with gray. Mesonotum yellowish, shaded with gray on medial line, parapsidal sutures and between PSP; pleura and sterna yellowish with grayish mark anterior to wing insertion; sutures above coxa grayish; sternum shaded completely gray except median zone of furcasternal plate. Metanotum yellowish, shaded slightly with gray medially, metasternum shaded more widely. Legs. All legs whitish yellow, completely shaded gray. Wings. Membrane and veins yellowish translucent, veins shaded gray. Abdomen ( Fig. 170 ) yellowish white, shaded with gray almost completely, medial line blackish, with submedian black spot on each side of terga III–IX; terga VIII–X shaded gray more markedly. Abdominal sterna whitish, shaded with gray completely, darker on gill sclerites, submedian spot at each side of sterna I–VIII. Genitalia ( Figs. 7 5–76 ): yellowish white except pedestal orangeish; sternum IX with truncated hind margin ( Fig. 75 ), medial line, fore and hind margins blackish, fore margin with submedian anterior comma-shaped spot at each side of medial line; pedestal ( Fig. 75 ) of each side almost touching basally, strongly elongated, parastylus short, very broad and rounded apically with inner corner strongly projected; forceps translucent white; base of main lobe of penes ( Fig. 76 ) strongly expanded laterodorsally, ear-like, penes narrowing abruptly on apical half, main lobe of penes apically pointed and curved ventrally; secondary membranous lobe translucent, relatively short and cylindrical. Caudal filaments translucent whitish yellowish.

Etymology. This species is dedicated with much pleasure to Janice Peters who continuously encourages and helps us with the study of Polymitarcyidae , especially Campsurus .

Distribution ( Fig. 179 ). Colombia and Brazil (Amazonas).

Diagnosis. Campsurus janae sp. nov. is known from male adults only. It can be distinguished from other species of Campsurus by: 1) posterior margin of male abdominal sternum IX truncated ( Figs. 75 ); 2) pedestal almost touching each other medially, strongly elongated, parastylus short, broad and rounded apically, inner corner strongly projected ( Fig. 75 ); 3) base of main lobe of penes strongly expanded laterodorsally ( Fig. 76 ), penes narrowing abruptly on apical half, main lobe of penes apically pointed and curved ventrally; secondary membranous lobe relatively short and cylindrical; 4) small size (length of male fore wings 6.5 mm).

Discussion. Campsurus janae sp. nov. is similar to C. pereirae sp. nov., but the extremely large and elongated pedestal of C. janae sp. nov. easily differentiates it. Campsurus janae sp. nov. is described as a pharate male imago (still inside the subimaginal cuticle), but the characteristic genitalia are sclerotized and in their final configuration.

Figures

FIGURES 179. Distribution maps.

FIGURES 68 – 76. Male adults. Campsurus zunigae sp. nov.: 68, genitalia of imago, v. v.; 69, genitalia of subimago, l. v.; 70, detail of penes of imago, l. v. Campsurus pereirae sp. nov., imago: 71, genitalia, v. v.; 72, detail of pedestal, v. v.; 73, detail of penes, v. v.; 74, genitalia, l. v. (forceps omitted). Campsurus janae sp. nov., imago: 75, genitalia, v. v.: 76, detail of penes, l. v.

FIGURES 167 – 170. Male imago, general view, dorsal: 167, C. dasilvai sp. nov.; 168, C. zunigae sp. nov.; 169, C. pereirae sp. nov.; 170, C. janae sp. nov.

FIGURES 1 – 12. Campsurus latipennis, adult. Male imago: 1, genitalia, ventral view (v. v.); 2, details of pedestal, v. v.; 3, detail of penes and pedestals, v. v.; 4 – 5, penes, lateral view (l. v.); 6, genitalia, l. v. SEM photographs: 9, genitalia, v. v.; 10, detail of microtrichia on sternum IX; 11, pedestal, v. v.; 12, detail of penes, v. v. Female adult: 7, abdominal sternum VIII; 8, detail of sockets. Abbreviations: bp = base of penes, ml = main lobe of penes, mp = median projection of sternum IX, ps = parastylus, sl = secondary lobe of penes.

FIGURES 13 – 24. Campsurus latipennis, nymph. 13, head, d. v. (long setae omitted); 14, left mandible, d. v. (row of filtering setae indicated with dashed line); 15, right mandible, v. v. (filtering setae as in previous figure); 16, apex of right mandibular tusk; 17, foreleg, d. v. (filtering setae not shown); 18, foreleg, v. v. (only filtering setae are indicated, with dashed lines); 19, foretarsal claw; 20, middle leg, d. v.; 21, middle tarsal claw; 22, hind leg, d. v.; 23, hind tarsal claw; 24, paraprocts with spines indicated (arrow).

FIGURES 25 – 34. Campsurus salobra sp. nov., adult: 25, male genitalia, v. v.; 26, same, l. v.; 27, female sternum VIII; 28, detail of female sockets. SEM photographs: 29, male genitalia, v. v. (with detail of microtrichiae); 30, apical portion of penes, v. v.; 31, female sterna VIII – X; 32, female sockets (with detail of microtrichia); 33, egg, convex side; 34, detail of capped pole.

FIGURES 35 – 50. Campsurus essequibo, imago. Holotype male genitalia: 35, general v. v.; 36, detail of penes, v. v. Female adult: 37, abdominal sternum VIII; 38, detail of sockets. Male imago: 39 – 42, genitalia, variations, v. v.; 43, genitalia after treatment with KOH; 44 – 47, genitalia, variations, l. v.; 48, male mesofurcasternum. SEM photographs: 49, genitalia, v. v. (with detail of microlepides); 50, detail of penes, v. v.

FIGURES 51 – 59. male imagos. Campsurus cuyuniensis: 51, paratype forceps (CUIC 2434); 52, same but from another paratype; 53, male genitalia from French Guiana specimen (FAMU), v. v. Campsurus nessimiani sp. nov.: 54, genitalia, v. v.; 55, same, l. v. Campsurus dasilvai sp. nov.: 56, genitalia, v. v.; 57, same, l. v.; 58, genitalia, v. v. (SEM), with detail of microlepides on sternum IX; 59, details of penes, v. v. (SEM).

FIGURES 60 – 67. Campsurus nessimiani sp. nov., nymph: 60, head, d. v.; 61, left mandible, outer lateroventral view (showing arc of filtering setae); 62, same, oclusal view; 63, right mandible, d. v.; 64, fore leg, d. v.; 65, same, schematic, v. v.; 66, middle leg, d. v.; 67, hind leg, d. v.