Phylloicus pulchrus Flint

PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), Zootaxa 275 (1), pp. 1-214 : 90-91

Phylloicus pulchrus Flint

Figs. 94 , 95 , 114

Phylloicus pulchrus Flint, 1964:65 [Type locality: Puerto Rico, Maricao Forest ; NMNH; male].

Phylloicus pulchrus is most similar to the other Antillean species P. cubanus , iridescens , and superbus . In P. pulchrus the orange bands of the forewing are wider ( Fig. 114 ) than in the other three species. The preanal appendage of P. pulchrus is shorter and the harpago is rounded apically ( Fig. 94A, B, C ).

Adult. Forewing length 7­7.9 mm, n = 38.

Head dark brown. Maxillary palps dark brown. Antenna twice forewing length; dark brown, with narrow patches of pale sensilla on anteromesal surface of each flagellomere. Dorsal pterothorax chestnut brown; ventrolateral thorax pale tan. Legs pale tan. Metathoracic leg of male without posterior fringe. Tibial spur formula 2,4,2. Forewing flat; dark brown; with two transverse bands; proximal band orange, extending from anterior to posterior wing margin, wide, at least 1/6 wing length; distal band orange, extending from anterior to posterior wing margins, wide, at least 1/6 wing length, with orange setae along distal wing margin ( Fig. 114 ); basal cells alternating orange setae and iridescent membrane ( Fig. 114 ). Hind wing basal brush absent.

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 mesal ridge extending 2/3 length of segment; posterior margin smoothly rounded ( Fig. 94B ); lateral ridge absent; dorsal pleural setae approximately 7, ventral pleural setae absent ( Fig. 94A ); sternum IX with paired mesolateral ridges; sternum IX ( Fig. 94C ). 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. 94A, B ). Tergum X without basal lobes; basodorsal process long and digitate; basolateral processes absent; apex, in lateral view, acute, in dorsal view, notched, notch shallow ( Fig. 94A, B ). Harpago large, rounded; peglike setae many, mesoventral ( Fig. 94A, C ). Phallic endotheca with paired basolateral lobes, basolateral lobes tapered apically; phallotremal sclerites very large, longest dimension twice diameter of phallobase; dorsal sclerite two­armed, in lateral view U­shaped ( Fig. 94D, 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. 95C ). Tergum IX with mesal ridge extending length of segment (as in Fig. 41B ). Sternum IX anterior lobes smooth and indistinct, posterior lobes striate, with shallow pockets lateral to vaginal opening ( Fig. 95A ). Tergum X appendage shorter than mesal lobe, base distinct, apex rounded; mesal lobe lightly sclerotized; digitate lateral processes absent (as in Fig. 41B ). Sternum X with patches of short fine setae posterolaterally to anal opening ( Fig. 95A ). 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 sphere with wide anterior ridge ( Fig. 95A ).

Material examined. CUBA: Oriente, Yunque de Baracoa , 305­549 m, 13.vii.1936, Darlington — 1 female ( MCZ) ; DOMINICAN REPUBLIC: Río Baiguate , 1­2 km S Jarabacoa, 19°06'54”N, 70°37'00"W, 520 m, 8­9.v.1995, Flint — 1 male ( NMNH) ; 19­ 21.v.1995, Flint — 1 male ( UMSP) ; — 1 female ( NMNH) ; Baoruco: San Rafael , 8.3 km S Baoruco, 18°01'54”N, 71°08'24"W, 30 m, 15.v.1995, Flint — 1 male ( NMNH) ; Barahona: nr. Filipinas, Larimar Mine , 6­11.vii.1993, Woodruff — 1 male ( FSCA) ; Dajabon: 13 km S Loma de Cabrera , 400 m, 20­22.v.1973, D & M Davis — 1 male, 1 female ( NMNH) ; — 1 female ( UMSP) ; Independencia: La Descubierta, 18°34'06”N, 71°43'48"W, 0 m, 25.iii.1999, Flint — 1 female ( NMNH) ; La Estrelleta: Río Limpio , 4 km SE Rio Limpio, 760 m, 24­25.v.1973, D & M Davis — 1 male ( NMNH) ; Pedernales: stream & falls, 19 km N Pedernales , 18°09'12”N, 71°44'48"W, 230 m, 19.iii.1999, Flint — 3 males ( NMNH) ; UNITED STATES: Puerto Rico: Maricao Forest Res., 610 m, 9­ 13.ii.1961, Gurney — holotype male, 1 male paratype ( NMNH) ; Maricao LT, 1.vii.1960, Maldonado — 1 male paratype ( CNC) ; — 1 male, 1 female paratypes ( NMNH) ; Mayagüez , 6­16.vii.1955, Ramos — allotype female ( NMNH) ; Patillas , 590 m, 1.viii.1987, Becker — 2 males, 1 female ( NMNH) ; — 1 female ( UMSP) ; Quebrada Prieta, El Verde Field Station , 370 m, 6­10.ii.1990, Flint — 5 males ( NMNH) ; — 1 male ( UMSP) ; Quebrada Sonadora , El Verde, hanging bridge, 350 m, 18.ii.1989, Masteller — 1 female ( NMNH) ; 20.ii.1989, Masteller — 1 male ( NMNH) ; El Verde Field Station, Quebrada Prieta , 370 m, 5­31.iii.1990, Masteller — 1 male, 2 females ( UMSP) ; 2­15.v.1990, Masteller — 1 adult ( NMNH) ; 20.v.1991, Buzby & Masteller — 1 male ( UMSP) ; Bisley stream #3, trib. to R. Mameyes , 31.vii.1992, Buzby & Masteller — 1 male ( NMNH) .

Distribution. Cuba, Dominican Republic, Puerto Rico.

Figures

FIGURE 41. Phylloicus cubanus. Male (holotype; preanal appendage and phallus, UMSP000009799): A—lateral view; B—dorsal view; C—sternum IX and inferior appendages, ventral view; D—phallus, lateral view; E phallus, ventral view.

FIGURE 94. Phylloicus pulchrus. Male (holotype): A—lateral view; B—dorsal view; C—sternum IX and inferior appendages, ventral view; D—phallus, lateral view; E—phallus, ventral view;.

FIGURE 95. Phylloicus pulchrus. Female (UMSP000009760): A—sterna IX, X and vaginal apparatus, ventral view; C—sternum VIII, ventral view.

FIGURES 113-116. — 113. Phylloicus paucartambo (composite of UMSP000010031-8). Forewing. — 114. Phylloicus pulchrus (composite of UMSP000009766 and UMSP000068395). Forewing. — 115. Phylloicus superbus (UMSP000009816 and UMSP000009824). Forewing. — 116. Phylloicus yolandae (holotype). Forewing.