Enderleina froehlichi Ribeiro­Ferreira, 1996

Ribeiro, José Moacir Ferreira & Rafael, José Albertino, 2005, A key to adult Amazonian stonefly genera with new geographical records of Enderleina Jewett for Brazil and first description of the E. froehlichi Ribeiro-Ferreira female (Insecta: Plecoptera), Zootaxa 1096 (1), pp. 61-67 : 62-66

Enderleina froehlichi Ribeiro­Ferreira

( Figs. 1–5 , 8–15 )

Enderleina froehlichi Ribeiro­Ferreira, 1996:146 , Figs. 1–6 ; Stark, 2001:411. Diagnosis. Body light brown, tinted with orange. Head brown except near the base of the antenna, where it is light yellow; three ocelli. Pronotum brown to orangish posteriorly ( Fig. 3 ). Wings infuscated with brown. Penial armature with bifid hooks and distinct spines on the base. Subgenital plate of female with rounded posterior margin and row of distinct subapical spines.

The male is redescribed and figured with more detail in order to better characterize this species.

Redescription of male holotype ( Fig. 1 ). Body light brown. Head ( Fig. 3 ) light brown except anteriorly toward the base of the antenna which is light yellow. Frons with conspicuous light brown spots, reaching from the anterior ocellus to inner margins of the compounded eyes. Maxillary and labial palpi dark yellow. Antenna light yellow with small light yellow bristles.

Pronotum light brown to orangish ( Fig. 3 , alcohol preserved specimen). Coxae and trochanter light yellow; femora light brown with long posteroventral bristles; tibiae light yellow; tarsomeres brown. Wings amber ( Figs. 4–5 ). Abdomen and cerci light yellow, with setae longer laterally. Sternum nine ( Fig. 8 ) wider than long with bristles longer laterally; hammer rounded, flattened; paraproct ( Fig. 10 ) with subapical denticle long. Tergum ten ( Fig. 9 ) with two submedian groups of short and heavy setae. Penial armature ( Figs. 11– 13 ) covered with distinct setae at basal half; lateral process strong and bifid and funnel shaped distally.

Description of female ( Fig. 2 ). Forewing from 9.5–10.7 mm long. Antennae brown. Femora with basal two­thirds light brown and distal one­third dark brown; tibiae brown; tarsomeres brown. Cerci long, segments 1–7 light yellow, others brown with longer setae laterally. Posterior margin of subgenital plate (sternum eigth) ( Fig. 14 ) strongly rounded with shallow median emargination, long setae more densely distributed on the distal half and a more distinct series on the posterior margin. Vaginal sclerite ( Fig. 15 ) mostly membranous and striated.

Egg unknown.

Distribution. BRAZIL: Amazonas, Manaus; Amapá, Serra Lombard, new record.

Material examined: Holotype male ( INPA): BRASIL, AM[azonas], Manaus, Reserva Ducke, Ig. [arapé] Anta, 13.xi.1987, A.C. Ferreira. Same location, 20–06.xi.1988, A.C. Ferreira (female INPA); same location, Ig. Uberê, arm. Malaise, 07–14.vii.2003, J.M.F. Ribeiro & João Vidal (2 females INPA); same location, Manaus, AM­010 Km­36, Sítio Vida Tropical, arm. Malaise, 12–30.vii.1996, João Vidal (female INPA); same location, mata, 19–30.xii.1996 (female INPA); same location, AM­010, Km­54, BI­2, suspensa baixa, lâmina dágua, 21.vii.1997, João Vidal (2 females INPA); same location, 19– 28.viii.1997, R.L.M.Ferreira, A.L.Henriques & João Vidal (female INPA); same location, 22–31.ix.1997 (male INPA); same location, Ig. Puraquequara, xii.1998, João Vidal (4 females INPA); Amapá, Serra Lombard , Limão, J & B. Bechyné, 03–09.1961 (female MPEG).

Condition of the holotype: abdomen dissected in an Eppendorf ® tube, remainder of the body with exuvium in Eppendorf ® tube, both in the same bottle, in alcohol.

Figures

FIGURES 1–7. 1. Enderleina froehlichi, holotype, male, habitus, dorsal; 2. E. froehlichi, female, habitus, dorsal; 3. E. froehlichi, holotype, head, pronotum, dorsal; 4. E. froehlichi, holotype, right forewing; 5. E. froehlichi, holotype, right forewing; 6. Anacroneuria marlieri Froehlich, male, head and pronotum; 7. Macrogynoplax pulchra Ribeiro­Ferreira& Froehlich, male, head and pronotum.

FIGURES 8–15. Enderleina froehlichi. 8–13 male. 8. Abdominal segments 7–10, ventral; 9. Abdominal segments 8–10 with paraproct, dorsal; 10. paraproct lateral; 11. Aedeagus, dorsal; 12. Aedeagus, ventral; 13. Aedeagus, lateral. 14–15 female. 14. Abdominal segments 6–8 and subgenital plate, ventral; 15. vaginal sclerite, ventral.