Polyplectropus juliae, Chamorro & Holzenthal, 2010

Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, Zootaxa 2582, pp. 1-252 : 138-140

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Polyplectropus juliae

new species

Polyplectropus juliae , new species

Figs. 68, 133

This species differs from all other species in the group in having a bifid dorsolateral process of the preanal appendage. Polyplectropus juliae is most similar to P. ulmeriana , new species based on the deltoid shape of the dorsal branch of the inferior appendage, which bears a posterobasal process, on the short, deltoid ventral branch of the inferior appendage, on the overall shape of the mesoventral process of the preanal appendage, and on the digitate lobes of the intermediate appendage. Polyplectropus juliae can be distinguished from P. ulmeriana by the elongate endothecal phallic spines (almost 2x longer in P. juliae ) and by the more elongate and apically produced dorsal phallic sclerite. Furthermore, the posterobasal process on the dorsal branch of the inferior appendage is curved dorsally in P. juliae (linear in P. ulmeriana ).

Adult. Length of forewing 5–5.5 mm, n = 11. Color of head and thorax brown, legs yellowish-brown; setae on wings golden brown along costal margin with patches of grey setae interspersed along margin and on most of wing surface.

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 slight median flange. Tergum X membranous, oblong, bearing dorsal microsetae. Intermediate appendage not longer than inferior appendage, digitate, with a pair of long apical setae and ventral microsetae; in dorsal view digitate, apex narrowing laterad; in caudal view digitate, laterally and medially produced, median lobe longer and curved laterad, basally meeting medially and bearing ventral microsetae. Preanal appendage tripartite; dorsolateral process bipartite, originating from dorsum of mesolateral process, 2 medium-sized processes directed posterad, one being more dorsad and curved while other more linear, tapering mesally into acute apex, basally bearing dorsal microsetae; mesolateral process setose; in dorsal view oblong, basally broad, in lateral view subquadrate; mesoventral process setose; in lateral view hook-like, with basal dorsal digitate lobe, ventral margin concave, posterior margin concave; in caudal view fused basomesally, ventral margin of process acute. Inferior appendage bipartite with anterior basal plate not extending anterad beyond sternum IX when observed in lateral view; dorsal branch setose, in lateral view deltoid, apex acute and with basoventral posterodorsally curved lanceolate projection; in ventral view narrow, lateral margin convex, posterior margin rounded, mesal margin slightly undulate, concave, basally with lanceolate process, shallowly fused to ventral branch; ventral branch setose, short, in lateral view digitate, bent dorsad and narrowing into acute sclerotized point; in ventral view deltoid, with acute apex and basally broad, rapidly converging mesally. Phallus long; dorsal phallic sclerite in lateral view slightly sinuate, dorsally produced subapically, apex pandurate; apex of dorsal phallic sclerite in dorsal view obtuse; in caudal view dorsally emarginate; endothecal membrane with 2 thin, mediumsized spines.

Holotype male: BRAZIL: Minas Gerais: Parque Estadual do Rio Preto, Rio Preto , 18°07'10"S, 43°20'28"W, 830 m, 14.xi.2001, Blahnik & Amarante —( UMSP000079551 ) ( MZUSP). GoogleMaps

Paratypes. BRAZIL: Minas Gerais: Parque Estadual do Rio Preto, Rio Preto, 18°07'10"S, 43°20'28"W, 830 m, 14.xi.2001, Blahnik & Amarante — 1 male, 7 females ( UMSP); Rio Preto , 20 km (rd) S São Gonçalo do Rio Preto , 18°07'00"S, 43°20'22"W, 650 m, 19.v.1998, Holzenthal & Paprocki — 1 male, 1 female ( NMNH) GoogleMaps .

Distribution. Brazil

Etymology. In honor of the senior author’s sister, Julia E. Chamorro Callejas.


Museu de Zoologia da Universidade de Sao Paulo


University of Minnesota Insect Collection


Smithsonian Institution, National Museum of Natural History