Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae) Author PRATHER, AYSHA L. text Zootaxa 2003 2003-08-29 275 1 1 214 https://biotaxa.org/Zootaxa/article/view/zootaxa.275.1.1 journal article 5618 10.11646/zootaxa.275.1.1 9322f2b2-a384-40bf-9d57-d789c76ce5c4 1175­5334 5019235 89BC39FD-ABCC-4634-876D-8C1F4337C325 Phylloicus amazonas , new species Figs. 17 , 18 , 106 The male genitalia of P. amazonas are most similar to those of P. chalybeus , but these two species differ in the distinctive wing pattern of P. amazonas . The wing pattern ( Fig. 106 ) is similar to P. paprockii ( Fig. 112 ), but differs in the black border of the large white patch. Adult. Forewing length 8.2­ 9 mm , n = 9. Head golden brown. Maxillary palps golden brown, covered with dark brown setae. Antenna twice forewing length; golden brown. Dorsal pterothorax golden brown; ventrolateral thorax golden brown. Legs golden brown. Metathoracic leg of male without posterior fringe. Tibial spur formula 2,4,2. Forewing flat; dark brown; with single transverse band; distal band white, not reaching either wing margin, 1/2 width of wing or less, oval, bordered with black; with single basal stripe, golden; sparse patches of white or ivory setae in basal cells; large dark patch and sparse white setae at location of proximal band ( Fig. 106 ). Hind wing basal brush present in female. Male. Preterminalic abdominal terga without anteromesal notches. 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 without mesal ridge; posterior margin smoothly rounded ( Fig. 17B ); lateral ridge absent; dorsal pleural setae approximately 4, ventral pleural setae approximately 2 ( Fig. 17A ); sternum IX without mesolateral ridges; sternum IX ( Fig. 17C ). Preanal appendage approximately length of tergum X, of uniform diameter throughout length, setae long, but not filamentous or longer than appendage ( Fig. 17A, B ). Tergum X without basal lobes; basodorsal process long and digitate; basolateral processes long, length at least twice diameter; apex, in lateral view, rounded, in dorsal view, notched, notch round; apicodorsal and dorsolateral margins bearing single row of short fine setae ( Fig. 17A, B ). Harpago long, curving mesally and tapering apically; peglike setae absent ( Fig. 17A, C ). Phallic endotheca with single long apical lobe and paired basolateral lobes, basolateral lobes multilobed; phallotremal sclerites very large, longest dimension twice diameter of phallobase; dorsal sclerite two­armed, in lateral view U­shaped ( Fig. 17D, E ). Female. Preterminal abdominal terga without anteromesal notches. Sternum VII with short pointed anteromesal process. Tergum VIII without posterolateral brush; sternum VIII cleft posteromesally to anterior ridge; sternum VIII ( Fig. 18C ). Tergum IX without mesal ridge ( Fig. 18B ). Sternum IX anterior and posterior lobes darkly sclerotized and striate, with deep sublateral invaginations ( Fig. 18A ). Tergum X appendage shorter than mesal lobe, base indistinct, apex triangular; mesal lobe lightly sclerotized; digitate lateral processes absent ( Fig. 18B ). Sternum X with patches of short fine setae posterolaterally to anal opening ( Fig. 18A ). Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite truncate anteriorly, posterolateral projections acute; posterior sclerite ovoid; posterior end of spermatheca a sclerotized ovoid ( Fig. 18A ). Holotype male: VENEZUELA : Amazonas : Cerro de la Neblina , Basecamp, 00°51'N 66°10'W , 140 m , 10­20.ii.1985 , Spangler, Faitoute, & Steiner ( NMNH ). Paratypes : BRAZIL : Amazonas : Manaus , Ponta Negra , 19.xi.1976 , Penny — 1 male ( INPA ) ; Res. Ducke , 26 km E Manaus , 29.x.1976 — 1 female ( INPA ) ; GUYANA : Nouveau Chantier, May, Le Moult — 1 male ( MCZ ) ; Warniabo Cr. , Dubulay Ranch , 05°39'48”N , 57°53'24"E , 10­11.iv.1994 , Flint — 2 females ( NMNH ) ; 14­19.iv.1995 , Flint — 1 male ( NMNH ) ; PERU : Loreto : Callicebus Research Station , Mishana , Río Nanay , 25 km SW Iquitos , 120 m , 10­17.i. 1980 , Heppner — 1 female , 1 male ( NMNH ) . Distribution. Brazil , Guyana , Peru , Venezuela . Etymology. This species is named for the Brazilian and Venezuelan states of Amazonas , where it was collected.