Askola emmerichi, Dominguez, Molineri & Mariano, 2009

Domínguez, Eduardo, Molineri, Carlos & Mariano, Rodolfo, 2009, Revision of the South American species of Hagenulopsis Ulmer and Askola Peters (Ephemeroptera: Leptophlebiidae) with description of six new species, Zootaxa 2142 (1), pp. 29-44 : 31-32

Askola emmerichi sp. nov. Domínguez, Molineri & Mariano

Male imago. Length: body, 5.0– 5.2 mm; fore wing, 4.8–5.0 mm. General coloration ( Fig. 1 ) thorax yellowish orange, abdomen translucent, blackish marks on thorax and abdomen forming a pair of sublateral longitudinal lines; wings with blackish marks. Head ( Figs. 2–3 ). Dorsal portion of eyes grayish, lower portion black; eyes widely meeting dorsally on meson of head; head yellowish with black stripes between eyes and ocelli. Antennae whitish. Thorax. Pronotum yellowish white with blackish lateral third. Mesonotum orange yellow with lateral margin of scutum, scutellum and central line on scutellum blackish. Metanotum yellowish with lateral and posterior margins blackish. Pleurae and sterna yellowish white except sclerites close to base of legs II and III darker. Legs. Leg I yellowish white except tarsi whitish, black bands on apex of femur, subapex of tibia and base of tarsal segments III and IV; tarsal bands occupying ¾ of respective segment; claws grayish [legs II and III broken off and lost]. Wings ( Figs. 1 , 25 ). Membrane hyaline except base of C area yellowish and grayish spots mainly around cross veins as in Figs. 1 , 25 ; longitudinal veins yellowish, cross veins blackish bordered with grayish; 4 costal cross veins from bulla to costal brace. Abdomen translucent white except segments VIII–X yellowish white. Terga with characteristic black pattern of marks and dots ( Fig.1 ), sterna without marks. Genitalia ( Figs. 28–30 ): styliger plate yellowish white darker on margins, forceps and penes light gray, paler towards apex. Terminal filament whitish with a black band on the base of each segment [cerci broken off and lost].

Material: 1 male imago from Colombia-Brazil, Amazonas, Reserva Natural Palmarí, quebrada Natividad , cuenca rio Yabarí , 150 m, N 04º 17' 28" - W 70º 17' 42", 28-V-2002, light trap, M.C. Zúñiga, D. Emmerich, A.J. Cardozo & R. J. Cardozo cols.; 1 male imago from Colombia-Brazil , Amazonas, Reserva Natural Palmarí , rio Yabarí , muelle Centro Administrativo , 120 m, N 04º 17' 10" - W 70º 17' 49", 29-V-2002, light trap, same collectors. Holotype deposited at MUSENUV, paratype at IFML.

Etymology: We dedicate this species to our friend and colleague Daniel Emmerich, one of the collectors of the type material.

Discussion: Askola emmerichi can be separated from the other species of the genus by the following combination of characters. Imago: 1) blackish marks on thorax and abdomen forming a pair of sublateral longitudinal lines ( Fig. 1 ), wings with blackish marks ( Figs. 1 , 25 ); 2) dorsal portion of eyes grayish and widely meeting dorsally on meson of head ( Figs. 2–3 ); 3) forceps yellowish-brown, except inner margins whitish; 4) penes extending well beyond posterior margin of styliger plate ( Figs. 28–29 ).

Figures

FIGURES 1–6. Askola. Figs 1–3, Askola emmerichi, sp. nov., male imago. 1, general aspect, lateral view; 2, head, dorsal view; 3, head, lateral view. Figs 4–6, Askola paprockii sp. nov., male imago. 4, body, dorsal view; 5, idem, ventral view; 6, head, dorsal view.

FIGURES 25–36. Askola. Figs 25–27, male fore wing: 25, Askola emmerichi sp.nov.; 26, Askola paprockii sp. nov.; 27, Askola cipoensis sp. nov. Figs 28–30, Askola emmerichi sp.nov.: 28, genitalia, ventral view; 29, genitalia, lateral view; 30, penes, detail. Figs 31–33, Askola paprockii sp. nov.: 31, genitalia, ventral view; 32, genitalia, lateral view; 33, penes, detail. Figs 34–36, Askola cipoensis sp. nov.: 34, genitalia, ventral view; 35, genitalia, lateral view; 36, penes, detail.