Phylloicus munozi, Prather, 2003

PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), Zootaxa 275 (1), pp. 1-214 : 75-77

Phylloicus munozi , new species

Figs. 74 , 75

Phylloicus “species 2" Flint, 1991:99.

Phylloicus munozi is similar to P. blahniki , but is distinguished by the unmodified tergum III, the absence of posterior processes of tergum IV and a complex lateral sclerite ( Fig. 74F ), and the long digitate basodorsal process of tergum X ( Fig. 74A, B ).

Adult. Forewing length 9.7­10.5 mm, n = 17.

Head golden 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 golden brown; ventrolateral thorax pale tan. Legs pale tan. Metathoracic leg of male with posterior fringe of long setae, setae dark. Tibial spur formula 2,4,4. Forewing flat; dark brown; with two transverse bands; proximal band pale orange­yellow, reaching posterior wing margin, at least 1/2 width of wing, narrow, less than 10 setae wide; distal band pale orange­yellow, not reaching either wing margin, 1/2 width of wing or less, narrow, less than 10 setae wide; with two basal stripes, ivory; cell Cu and base of cell Cu 2 clear. Hind wing basal brush present in male.

Male. Preterminalic abdominal terga with anteromesal notch. Corematic structures present. Tergum IV with paired lateral sclerites, mesal coremata and lateral coremata; lateral sclerite spatulate, directed laterally and with acute basomesal process; lateral coremata with basal globose lobes and long tubular posterior lobe; mesal coremata single­lobed, setose, capable of inflation beyond terminalia. Tergum V without sclerotized modifications ( Fig. 74F ). Sternum VII with short, acute anteromesal process. Sternum VIII similar to anterior sterna, sternum IX not elongate. Tergum IX without mesal ridge; posterior margin continuous with basodorsal process of tergum X ( Fig. 74B ); lateral ridge present; dorsal pleural setae approximately 2, ventral pleural setae absent ( Fig. 74A ); sternum IX without mesolateral ridges; sternum IX ( Fig. 74C ). Preanal appendage approximately length of tergum X, of uniform diameter throughout length, setae long, but not filamentous or longer than appendage ( Fig. 74A, B ). Tergum X without basal lobes; basodorsal process long and digitate; basolateral processes absent; apex, in lateral view, truncate, in dorsal view, entire ( Fig. 74A, B ). Harpago slightly tapered; peglike setae many, apical ( Fig. 74A, C ). Phallic endotheca with paired apicolateral lobes and paired basolateral lobes, basolateral lobes tapered apically, apicolateral lobes large and rounded; phallotremal sclerites average size, longest dimension less than diameter of phallobase; dorsal sclerite ovoid, in dorsal view horseshoe­shaped ( Fig. 74D, E ).

Female. Preterminal abdominal terga with anteromesal notch. Sternum VII with short pointed anteromesal process. Tergum VIII without posterolateral brush; sternum VIII posterior margin entire; sternum VIII ( Fig. 75C ). Tergum IX without mesal ridge ( Fig. 75B ). Sternum IX anterior and posterior lobes darkly sclerotized and striate, with patch of lightly sclerotized cuticle lateral to vaginal opening ( Fig. 75A ). Tergum X appendage shorter than mesal lobe, base marked by faint suture line, apex oblique; mesal lobe lightly sclerotized; digitate lateral processes absent ( Fig. 75B ). Sternum X with patches of short fine setae posterolaterally to anal opening ( Fig. 75A ). Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite rounded anteriorly, posterolateral projections absent; posterior sclerite triangular ( Fig. 75A ).

Holotype male: COSTA RICA: Cartago: Reserva Tapantí, Quebrada Palmitos & falls, ca. 9 km (road) NW tunnel, 09°43'12”N, 83°46'48"W, 1400 m, 1­2.viii.1990, Holzenthal, Blahnik, & Muñoz ( UMSP).

Paratypes: COLOMBIA: Antioquia: Mun. Envigado, Quebrada La Ayura, 1750 m, 2.xii.1983, Matthias — 1 female ( NMNH) ; site B, 1750 m, 9.xii.1983, Matthias — 2 females ( NMNH) ; trap B, 1750 m, 20.iv.1983, Matthias — 1 male ( NMNH) ; 23.viii.1983, Matthias — 2 males ( NMNH) ; COSTA RICA: Límon: Limon, 16 km W Guapiles , 400 m, Ii.­ Mar 1989, Hanson — 1 male ( UMSP) ; Puntarenas: Río Bellavista trib., Las Alturas, road to quarry, 08°57'07”N, 82°50'53"W, 1480 m, 19.iii.1991, Holzenthal, Muñoz, & Huisman — 1 male ( INBIO) ; — 1 male ( UMSP) ; Río Jaba , rock quarry, 1.4 km (air) W Las Cruces, 08°47'24”N, 82°58'12"W, 1150 m, 9.viii.1990, Holzenthal, Blahnik, & Muñoz — 1 male ( UMSP) ; 15.iii.1991, Holzenthal, Muñoz, & Huisman — 2 males ( UMSP) ; Jardín Botanico R & C Wilson, unnamed trib., Sendro del Agua , 08°48'00”N, 82°57'36"W, 1180 m, 8.viii.1990, Holzenthal, Blahnik, & Muñoz — 2 males ( UMSP) ; San José: Reserva Biológica Carara, Río del Sur , 1.5 km (rd) S Carara, 09°46'08”N, 84°31'52"W, 160 m, 13.iii.1991, Holzenthal, Muñoz, & Huisman — 1 female ( UMSP) ; PANAMA: Chiriqui: Fortuna Dam Site nr. Hornitos, 08°55'00”N, 82°16'00"W, 1050 m, 4.i.­ 7.iii.1978, Wolda — 1 male ( NMNH) .

Distribution. Colombia, Costa Rica, Panama.

Etymology. This species is named for Fernando Muñoz­Quesada, who collected the type specimen.

Figures

FIGURE 74. Phylloicus munozi. Male (UMSP000000250): A—lateral view; B—dorsal view; C— sterna VIII, IX, and inferior appendages, ventral view; D—phallus, lateral view; E—phallus, ventral view; F—tergum IV, dorsal view.

FIGURE 75. Phylloicus munozi. Female (UMSP000032413): A—sterna IX, X and vaginal apparatus, ventral view; B—terga IX and X, dorsal view; C—sternum VIII, ventral view.