Campsurus amapaensis Molineri & Emmerich, 2010

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 : 347-348

Campsurus amapaensis Molineri & Emmerich

( Fig. 145 )

Campsurus amapaensis Molineri & Emmerich 2010: 276 .

Material. BRAZIL: 12 ♂ i and 5 ♀ i from Goiás, Mineiros , riacho/ponte, L 22, 514 m, 24.ii.2012, pennsylvania light trap, LF Sgarbi, APM Santos & E Raimundi cols. ( CZNC) ; 1 ♂ si, Roraima, Caracaraí, rio Branco, Bem Querer , N 01°55' / W 61°00', 18–21.xi.2002, AMO Pes col. ( CZNC) ; 2 ♂ i and 3 ♂ si from Roraima, Boa Vista, Rio Cauamé , N 2° 49' 11" / W 60° 40' 24", 28.ii.2003, UV light trap ; 17 ♂ i, 39 ♂ si and 7 ♀ si from Roraima, Boa Vista, Rio Cauamé , N 2° 49' 11" / W 60° 40' 24", 29.v.2009, Pennsylvania light trap, Fusari & Fernandes cols. ( CZNC) ; 1 ♂ i, Goiás, Mineiros , L23, 24.ii.2012, S 17°12’9,3” / W 52°39’50,4”, E Raimundi col. ( CZNC) ; 30 ♂ i, Piauí, Domingos Mourão , S 04°10'06" / W 041°34'55", 1.vi.2011, N Hamada col. ; 1 ♀ i, Goiás, Mineiros, Parque Nacional das Emas (sede), S 18°15'48" / W 52°53'34", 26.ii.2012, pennsylvania light trap, E Raimundi col. ( CZNC)

Female imago. Length (mm): body, 12.5–13.2; fore wing, 11.7–13.0; hind wing, 5.2–5.5; caudal filaments lost. General coloration yellowish, shaded with gray. Head completely shaded with gray, except gena and venter. Thorax. Pronotum whitish translucent, shaded with gray medially and with black on medial line, lateral and posterior margins; propleura and sternum yellowish white, shaded gray; blackish line present between coxae. Mesonotum yellowish, extensively shaded with gray, with blackish medial line; mesopleura with blackish dash above coxa, furcasternum shaded with gray. Metanotum shaded completely with gray; pleura and sterna paler. Fore leg reddish gray, middle and hind legs whitish, shaded with gray on coxae. Wings. Wing membrane slightly tinged with yellow, veins C, Sc, R, MA and MP1 reddish, remaining veins yellowish; hind wing with yellowish veins. Abdomen with terga almost completely shaded with gray, except pale submedian circular dot and transversal dashes on segments II–VII; medial line of terga VI–IX blackish; sterna whitish translucent, except sockets and anterior margin of tergum IX shaded with gray. Sternum VIII with anteromedian, small and single subcircular socket ( Fig. 145 ); socket relatively deep medially. Sternum VIII almost completely covered with spine-like microtrichia directed rearward. Caudal filaments whitish.

Egg. Length 270–285µm, width 210–240µm, polar cap length 30–45µm and width 150–165µm. General coloration yellowish white with whitish large polar cap (0.7× maximum width of egg), and formed by 6–8 filaments.

Distribution ( Fig. 178 ). Brazil (Amapá orig. New records: Goiás, Piauí and Roraima).

Discussion. Molineri & Emmerich (2010) described and diagnosed the species based only on males. We here give the first description of the female adult, but nymphs remain unknown. The female morphology of C. amapaensis coincides with that of the major species group proposed by Molineri & Emmerich (2010), but it may be separated from the other known females of this group ( C. argentinus Esben-Petersen 1912 and C. major Needham & Murphy 1924 ) by the smaller size and darker coloration of C. amapaensis and also by details of the female sockets ( Fig. 145 ).

Figures

FIGURES 178. Distribution maps.

FIGURES 138 – 145. C. segnis, holotype male imago: 138, genitalia, v. v.; 139, penes, v. v. Campsurus cotaxe sp. nov.: 140, genitalia, v. v.; 141, pedestal, v. v.; 142, penes, v. v.; 143, penes, l. v.; 144, female sternum VIII with detail of socket. C. amapaensis: 145, partial view of female sternum VIII with detail of socket.