Polyplectropus peruvianus Chamorro & Holzenthal 2010, new species
Creators: name: Chamorro, Maria Lourdes
name: Holzenthal, Ralph W.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Polycentropodidae
Polyplectropus
Polyplectropus peruvianus

description: Polyplectropus peruvianus, new species   
Figs. 17A, 63, 138  
 Polyplectropus peruvianus is easily distinguished from P. guyanae by the fused apex of the mesoventral process of the preanal appendage bearing rows of peg-like setae (apically bifurcating and lacking peg-like setae in P. guyanae). Furthermore, the intermediate appendage in P. peruvianus is apically concave and has apical setae on mesal papillate lobes (with a simple rounded apex in P. guyanae), and the apex of the dorsal phallic sclerite is ventrally produced (simple and oblong in P. guyanae), and the ventral branch of the inferior appendage is broadly deltoid (oblong in P. guyanae).   
 Adult. Length of forewing 4–4.5 mm, n = 2. Color of head, thorax, and legs brown; setae on body grey and golden brown; tegulae with long, golden brown and grey setae; setae on wings darker brown along costal margin, rest of wing lighter shade of brown with scattered patches of grey setae.   
 Male genitalia. Sternum IX in lateral view deltoid, anterior margin convex, posterior margin medially produced; in ventral view rectangular, anterior margin concave, posterior margin with median flange. Tergum X membranous, oblong, bearing dorsal microsetae. Intermediate appendage as long as inferior appendage, cylindrical, with apical setae on papillate lobes; in dorsal view cylindrical, apically concave with papillate lobes in middle of concavity; in caudal view rounded, apically concave with median papillate lobes, directed posterolaterad. Preanal appendage bipartite; possible small remnant of dorsolateral process of preanal appendage; mesolateral process setose; in dorsal view orbicular, in lateral view deltoid; mesoventral process setose; in lateral view rounded, with dorsal digitate lobe, anteroventral margin concave, posterior margin concave; in caudal view processes apically fused to form a single continuous structure, ventral margin of process rounded, bearing sclerotized peg-like setae. Inferior appendage bipartite with anterior basal plate not extending anterad beyond sternum IX when observed in lateral view; dorsal branch setose, in lateral view clavate, posteroventrally produced; in ventral view narrow, broadening apically, lateral margin, sinuate, posterior margin acute, mesal margin slightly undulate, angled, expanding posterad into ventral branch; ventral branch setose, short, in lateral view deltoid, bent dorsad and narrowing into acute sclerotized point; in ventral view broadly deltoid, posteromesal margin convex, gradually converging mesally. Phallus long; dorsal phallic sclerite in lateral view sinuate, apex broad, oblong, subapically produced ventrad; apex of dorsal phallic sclerite in dorsal view rounded, apex in caudal view trapezoidal (large structure may be fused dorsolateral arms of phallic sclerite); endothecal membrane with many short, sclerotized, peg-like spines.   
 Holotype male. PERU: Loreto: Callicebus Research Station, Mishana, Río Nanay, 25 km SW Iquitos, [3°44'53"S, 73°14'50"W], 120 m, 10–17.i.1980, J B Heppner —(UMSP000107492) (NMNH).   
 Allotype. PERU: Loreto: Callicebus Research Station, Mishana, Río Nanay, 25 km SW Iquitos, [3°44'53"S, 73°14'50"W], 120 m, 10–17.i.1980, J B Heppner — 1 female (NMNH).   
Distribution. Peru.  
Etymology. This species is named for the country of Peru where the holotype and paratype were collected.
description: Published as part of Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, pp. 1-252 in Zootaxa 2582 on pages 129-130