Smicridea (Rhyacophylax) peruana (Martynov), 1912

Rueda Martín, Paola A. & Sganga, Julieta V., 2011, Smicridea McLachlan (Trichoptera: Hydropsychidae) from northwestern Argentina and Bolivia: new species, redescription, association and new records, Journal of Natural History 45 (35 - 36), pp. 2215-2230 : 2228-2229

Smicridea (Rhyacophylax) peruana (Martynov), 1912

( Figure 5F–L )

Smicridea (Rhyacophylax) peruana Martynov, 1912: 27 ; Flint, 1975: 572; Flint, 1980: 214; Sganga, 2006: 142.

Material examined

Peru: Cangallo , 2600 m, 22 April 1936: three males ( NMNH) (compared with Holotype by Dr O. S. Flint, Jr. 1974) . Argentina: Catamarca, Guayamba, El Durazno , 8 November 2000, 28 ◦ 21 ′ 06 ′′ S, 65 ◦ 25 ′ 53 ′′ W, 869 m, H. Fernández, F. Romero, V. Manzo and C. Molineri cols.: one male ( IML) ; Tucumán, Río el Siambón, 1 November 2008: one male ( IML); Dique Escaba (Abajo), 30 February 1996: one male ( IML); Dique Escaba, Río Chavaría , 12 November 1999: one male ( IML); Camino a Los Reales, A ◦ Yacuchina, 10 November 2000 , 28 ◦ 08 ′ 23 ′′ S, 65 ◦ 43 ′ 05 ′′ W, Fernandez col.: 10 males ( IML); Río Pueblo Viejo, 5 May 2005, P. Rueda Martín and C. Reynaga cols.: one male ( IML); Trancas, Río Vipos , 19 April 1997: one male ( IML) ; Salta, Los Toldos, 26 October 1999, C. Molineri col.: one male ( IML); Río Huaico Grande, 26 October 1999, C. Molineri col.: six males ( IML); Parque Nacional el Rey, A ◦ La Sala, 22 March 1999, F. Romero col.: one male ( IML); Río Seco , 23 ◦ 05 ′ 50 ′′ S, 65 ◦ 46 ′ 01 ′′ W, 1090 m above sea level, 15 December 1999, E. Domínguez, F. Romero and V. Manzo cols.: seven males ( IML) ; Jujuy, Río Piedras , 23 ◦ 30 ′ 47 ′′ S, 64 ◦ 33 ′ 09 ′′ W, 580 m, 1 June 2000, F. Romero, C. Molineri, V. Manzo and C. Nieto cols.: one male ( IML) . Calilegua, A ◦ Tres Cruces , 28 December 1997: 19 males ; Río Zora , 23 ◦ 45 ′ 04 ′′ S, 64 ◦ 41 ′ 27 ′′ W, 410 m, 2 June 2000, F. Romero, C. Molineri, V. Manzo and C. Nieto cols.: five males ( IML) . Bolivia: Tarija, Río Orosa , 5 November 2004, V. Manzo and C. Molineri cols.: one male ( IML) .

Species redescription

Male. Length of forewings 6.5 mm. Colouration of head and thorax light stramineous, setal warts, antennae, legs and abdomen yellowish. Forewing yellowish, with an oval pale macula parallel to the costal margin (pterostigma) with dark brown setae above, and dark brown stripes over transversal veins with a transversal jagged line at the midlength of anastomosis of R ( Figure 5F ). Stigma on fork II dark; median cell with basal dark dot. The colouration of the body and wings was observed in specimens preserved in alcohol.

Diameter of eye, in dorsal view, 2.3 times the interocular distance. Anterolateral process of sternum V about 1.5 times the length of the sternum.

Genitalia. The structure of segment IX, tergum X and inferior appendages are like the original description by Martynov ( Figure 5G–I ). All males collected in northwestern Argentina and Bolivia, and the males compared with holotype by Flint at the National Museum of Natural History ( NMNH) bears ventral and dorsal spines in the dorsal and ventral area of phallus ( Figure 5J–L ). In the original description of Martynov, the apex of phallus is invaginated as in Figure 5J,K . The apex of phallus when it is evaginated bears two dorsal teeth in lateral view, a central membranous tube and an apical process slightly broadened at the tip ( Figure 5L ) .

Remarks

Smicridea (R.) peruana was collected from all provinces from northwestern Argentina and for the first time this species is recorded from Bolivia. This species is very common, and was found in most of the collecting sites.

Distribution

Peru, Argentina (northwestern), Bolivia.

Figures

Figure 5. Smicridea (Rhyacophylax) pampeana. (A) Male genitalia, lateral view; (B) male genitalia, dorsal view; (C) inferior appendages, ventral view; (D) phallus, lateral view; (E) phallus, ventral view. Smicridea (Rhyacophylax) peruana. (F) colouration pattern of forewing, (G) male genitalia, lateral view; (H) male genitalia, dorsal view; (I) inferior appendages, ventral view; (J) phallus, lateral view; (K) phallus, dorsal view (L) phallus, lateral view, with endophallus evaginated.