Phylloicus flinti, Prather, 2003

PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), Zootaxa 275 (1), pp. 1-214 : 55-57

Phylloicus flinti , new species

Figs. 53 , 54 , 110

Phylloicus "n. sp. 2" Flint, 1996:425

The wing pattern of P. flinti is very distinctive, with four longitudinal bands of pale tan setae on a dark brown wing ( Fig. 110 ). In the male, abdominal segments III and IV are highly modified ( Fig. 53F ). Although the male abdomen is similar to that of P. paucartambo , P. flinti lacks mesal coremata.

Adult. Forewing length 10.1­10.7 mm, n = 84.

Head dark brown, golden brown posteriorly. Maxillary palps dark brown, covered with golden setae. Antenna twice forewing length; dark brown, with narrow patches of pale sensilla on anteromesal surface of each flagellomere. Dorsal pterothorax golden brown; ventrolateral thorax golden brown. Femora golden brown; foretibiae dark brown; mesotibiae dark brown; metatibiae dark brown; tarsi dark brown. Mesotibial spurs pale. Metathoracic leg of male with posterior fringe of long setae. Tibial spur formula 2,4,4. Forewing flat; dark brown; with longitudinal stripes; stripes pale tan; with single basal stripe, white ( Fig. 110 ). Hind wing basal brush present in male, dark brown.

Male. Preterminalic abdominal terga with anteromesal notch. Corematic structures present. Tergum III with small pleural sclerites and posterolaterally acute lateral sclerites. Tergum IV with paired posterior processes and paired lateral sclerites, lateral coremata; posterior process truncate; lateral sclerite spatulate, directed laterally; lateral coremata with basal globose lobes and long tubular posterior lobe. Tergum V without sclerotized modifications ( Fig. 53F ). Sternum VII with short, acute anteromesal process. Sternum VIII enclosing base of elongate sternum IX ( Fig. 53A, C ). Tergum IX deeply notched anteriorly, margins of notch ridged; posterior margin obtuse; thinly sclerotized anteromesally ( Fig. 53B ); lateral ridge absent; dorsal pleural setae approximately 5, ventral pleural setae approximately 5 ( Fig. 53A ). Preanal appendage shorter than tergum X, but greater than 2/3 length, of uniform diameter throughout length, setae long, but not filamentous or longer than appendage ( Fig. 53A, B ). Tergum X without basal lobes; basodorsal process absent; basolateral processes absent; apex, in lateral view, truncate, in dorsal view, notched, notch shallow; with paired basomesal ridges bearing approximately 3 stout setae ( Fig. 53B ) ( Fig. 53A, B ). Harpago rounded; peglike setae few, apical ( Fig. 53A, C ). Phallic endotheca with paired basolateral lobes, basolateral lobes large and round; phallotremal sclerites average size, longest dimension less than diameter of phallobase; dorsal sclerite narrow, width less than height ( Fig. 53D, E ).

Female. Preterminal abdominal terga with anteromesal notch. Sternum VII with short pointed anteromesal process. Tergum VIII without posterolateral brush; sternum VIII cleft posteromesally, cleft not reaching anterior ridge; sternum VIII ( Fig. 54C ). Tergum IX without mesal ridge ( Fig. 54B ). Sternum IX anterior and posterior lobes darkly sclerotized and striate, with patch of lightly sclerotized cuticle laterally ( Fig. 54A ). Tergum X appendage shorter than mesal lobe, base indistinct, apex triangular; mesal lobe lightly sclerotized; digitate lateral processes absent ( Fig. 54B ). Sternum X with patches of short fine setae posterolaterally to anal opening ( Fig. 54A ). Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite truncate anteriorly, posterolateral projections rounded; posterior sclerite ovoid; posterior end of spermatheca a sclerotized cone ( Fig. 54A ).

Holotype male: PERU: Madre de Dios: Manu Biosphere Res., Pakitza Bio. Sta., trail 1, 1st stream, 11°56'00”S, 71°18'00"W, 250 m, 9­14.ix.1988, Flint & Adams ( MHNJP).

Paratypes: BRAZIL: Rondonia: 62 km S Ariquernes linea C­ 20, 7 km E B­65, Fazenda Rancho Grande , 10°32'00”S, 62°48'00"W, 14­22.iii.1991, Kondratieff & Welch — 2 females ( NMNH) ; Ahrenholz Trail , off B­ 65, 3 km N linea C­20, 21.iii.1991, Kondratieff & Welch — 1 male ( NMNH) ; linea C­2.5 off B­65, 12.5 km S Cacaulandia , 17.iii.1991, Kondratieff & Welch — 1 female ( MZUSP) ; PERU: Cuzco: Quincemil , x.1962, Peña G. — 1 female ( CNC) ; Madre de Dios: Manu Biosphere Res., Pakitza Bio. Sta. , 11°56'00”S, 71°18'00"W, 250 m, 9­23.ix.1988, Flint & Adams — 2 males ( NMNH) ; 01­13­03­99, 11°56'00”S, 71°18'00"W, 350 m, 2.x.1987, Pogue — 1 male ( NMNH) ; Aquajal , 11°56'00”S, 71°18'00"W, 250 m, 12.ix.1988, Pogue — 1 female ( NMNH) ; Gelhaus #445, 11°56'00”S, 71°18'00"W, 250 m, 19.ix.1989, Gelhaus — 1 female ( NMNH) ; kitchen stream, 11°56'00”S, 71°18'00"W, 250 m, 12­18.ix.1989, Adams — 2 females, 4 males ( NMNH) ; — 1 male ( MHNJP) ; trail 1, 1st stream, 11°56'00”S, 71°18'00"W, 250 m, 9­14.ix.1988, Flint & Adams — 1 female, 1 male ( NMNH) ; 11.ix.1988, Flint & Adams — 1 male ( NMNH) ; trail 1, marker 14 (1st stream), 11°56'00”S, 71°18'00"W, 250 m, 19­ 23.ix.1989, Adams et al. — 1 female ( MHNJP) ; — 1 male ( NMNH) ; — 1 female ( UMSP) ; trail 1, marker 8, 11°56'00”S, 71°18'00"W, 250 m, 11­13.ix.1989, Adams — 2 males ( NMNH) ; trail 2, 1st stream, 11°56'00”S, 71°18'00"W, 250 m, 14­23.ix.1988, Flint & Adams — 1 female, 1 male ( MHNJP) ; — 5 females, 26 males ( NMNH) ; — 1 female, 1 male ( UMSP) ; 17­20.ix.1988, Flint & Adams — 1 male ( NMNH) ; Trail 2, marker 15 (1st stream), 11°56'00”S, 71°18'00"W, 250 m, 18.ix.1989, Adams — 1 female ( NMNH) ; trail 2, marker 18, 11°56'00”S, 71°18'00"W, 250 m, 12­23.ix.1989, Adams et al. — 1 female, 4 males ( NMNH) ; — 1 male ( UMSP) ; Quebrada Paujil­Picoflor , trail 1, marker 13, 11°56'39”S, 71°16'59"W, 350 m, 2.vii.1993, Blahnik & Pescador — 1 male ( NMNH) ; 4­ 6.vii.1993, Blahnik & Pescador — 4 females, 2 males ( NMNH) ; 1 male ( MHNJP) ; Quebrada Trompetero , trail 2, marker 15, 11°56'39”S, 71°16'59"W, 350 m, 3.vii.1993, Blahnik & Pescador — 3 males ( NMNH) ; 6.vii.1993, Blahnik & Pescador — 1 female, 1 male ( UMSP) .

Distribution. Brazil, Peru

Etymology. Named for Dr. Oliver S. Flint, collector of the type specimen, in recognition of his enormous contributions to Neotropical caddisfly systematics, and in particular for his invaluable assistance and encouragement throughout this project.

Figures

FIGURE 53. Phylloicus flinti. Male (UMSP000010115): A—lateral view; B—dorsal view; C— sterna VIII, IX, and inferior appendages, ventral view; D—phallus, lateral view; E—phallus, ventral view; F— terga III and IV, dorsal view.

FIGURE 54. Phylloicus flinti. Female (UMSP000063413): A—sterna IX, X and vaginal apparatus, ventral view; B—terga IX and X, dorsal view; C—sternum VIII, ventral view.

FIGURES 109-112. — 109. Phylloicus elegans (composite of UMSP000000172 and UMSP000022365). Forewing. — 110. Phylloicus flinti (UMSP000010104). Forewing. — 111. Phylloicus iridescens (composite of UMSP000009750 and UMSP000009751). Forewing. — 112. Phylloicus paprockii (composite of UMSP000068390-2). Forewing.