Phylloicus plaumanni Flint

Phylloicus plaumanni Flint

Figs. 92, 93

Phylloicus plaumanni Flint, 1983:76 [Type locality: Brazil, Edo. Santa Catarina, Seara (27°09'S, 52°15'W); NMNH; male].

Phylloicus plaumanni is similar to P. bidigitatus and obliquus. The forewings of P. plaumanni are a uniform dark brown.

Adult. Forewing length 8.6­10.9 mm, n = 30.

Head dark brown or black. Maxillary palps dark brown. Antenna twice forewing length; chestnut brown, with narrow patches of pale sensilla on anteromesal surface of each flagellomere. Dorsal pterothorax dark brown; ventrolateral thorax dark brown. Femora dark brown; tibiae dark brown; foretarsi dark brown; mesotarsi golden brown; metatarsi dark brown. Metathoracic leg of male without posterior fringe. Tibial spur formula 2,4,4. Forewing flat; dark brown; without colored markings. Hind wing basal brush present in male.

Male. Preterminalic abdominal terga with anteromesal notch. Corematic structures absent, terga III­V unmodified, without membranous lobes or sclerotized processes. Sternum VII with short, acute anteromesal process. Sternum VIII similar to anterior sterna, sternum IX not elongate. Tergum IX with paired mesal ridges extending 1/2 length of segment; posterior margin not distinct from base of tergum X; thinly sclerotized anteromesally (Fig. 92B); lateral ridge present; dorsal pleural setae approximately 10, ventral pleural setae absent (Fig. 92A); sternum IX with paired mesolateral ridges; sternum IX (Fig. 92C). Preanal appendage approximately length of tergum X, narrowly elliptic, setae long, but not filamentous or longer than appendage (Fig. 92A, B). Tergum X without basal lobes; basodorsal process absent; basolateral processes absent; apex, in lateral view, acute, in dorsal view, notched, notch deep and round; setose dorsally (Fig. 92A, B). Harpago sharply tapered; peglike setae few, apical (Fig. 92A, C). Phallic endotheca with paired apicolateral lobes and paired basolateral lobes, basolateral lobes multilobed, apicolateral lobes small and rounded; phallotremal sclerites average size, longest dimension less than diameter of phallobase; dorsal sclerite narrow, width less than height (Fig. 92D, E).

Female. Preterminal abdominal terga with anteromesal notch. Sternum VII with short pointed anteromesal process. Tergum VIII without posterolateral brush; sternum VIII cleft posteromesally to anterior ridge; sternum VIII (Fig. 93C). Tergum IX without mesal ridge; covered with short fine pilosity (Fig. 93B). Sternum IX anterior lobes smooth and indistinct, posterior lobes striate, with shallow pockets lateral to vaginal opening (Fig. 93A). Tergum X appendage longer than mesal lobe, base marked by faint suture line, apex triangular; mesal lobe lightly sclerotized; digitate lateral processes absent (Fig. 93B). Sternum X without setae in membrane (Fig. 93A). Vaginal apparatus posterior sclerite elongate; anterior sclerite tapered anteriorly, posterolateral projections rounded; posterior sclerite triangular; posterior end of spermatheca a sclerotized ovoid (Fig. 93A).

Material examined. ARGENTINA: Misiones: San Ignacio, Haute Parana, ii., Wagner — 1 male paratype (NMNH); Apr, Wagner — 1 male paratype (NMNH); BRAZIL: Santa Catarina: Seara (Nova Teutônia), 27°11'00”S, 52°23'00"W, 300­500 m, 31.v.1938, Plaumann — 1 male (BMNH); 10.ix.1939, Plaumann — 1 male paratype (MCZ); 25.iv.1963, Plaumann — holotype male, 3 male, 1 female paratypes (NMNH); 1.v.1963, Plaumann — 5 male, 1 female paratypes (UMSP); 1.xi.1963, Plaumann — 4 male, 4 female paratypes (NMNH); 6.x.1964, Plaumann — 3 male, 1 female paratypes (NMNH); — 1 male paratype (UMSP).

Distribution. Argentina, Brazil.