Phylloicus yolandae, Prather , 2003

PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), Zootaxa 275 (1), pp. 1-214 : 98-99

publication ID 10.11646/zootaxa.275.1.1

publication LSID


persistent identifier

treatment provided by


scientific name

Phylloicus yolandae

new species

Phylloicus yolandae   , new species

Figs. 104 View FIGURE 104 , 116 View FIGURES 113-116. — 113

Phylloicus yolandae   is one of the prettiest and most unusual species of Phylloicus   . With its partially clear forewings and dramatic coloration ( Fig. 116 View FIGURES 113-116. — 113 ), this species resembles clearwinged moth species found in the region. The male genitalia are recognized by the cordate tergum X and the digitate preanal appendage.

Adult. Forewing length 8.1 mm, n = 1.

Head dark brown or black. Maxillary palps dark brown or black. Antenna twice forewing length; dark brown, with narrow patches of pale sensilla on anteromesal surface of each flagellomere. Dorsal pterothorax dark brown or black; ventrolateral thorax dark brown. Legs dark brown. Metathoracic leg of male without posterior fringe. Tibial spur formula 2,4,4. Forewing flat; dark brown, or black; with two transverse bands; proximal band ivory, reaching posterior wing margin, at least 1/2 width of wing, interrupted by clear patch ( Fig. 116 View FIGURES 113-116. — 113 ); distal band ivory, not reaching either wing margin, 1/2 width of wing or less; with single basal stripe, ivory; large clear patch in center of wing ( Fig. 116 View FIGURES 113-116. — 113 ).

Male. Preterminalic abdominal terga without anteromesal notches. Corematic structures absent, terga III­V unmodified, without membranous lobes or sclerotized processes. Sternum VIII similar to anterior sterna, sternum IX not elongate. Tergum IX without mesal ridge; posterior margin notched ( Fig. 104B View FIGURE 104 ); lateral ridge present; dorsal pleural setae approximately 8, ventral pleural setae approximately 2 ( Fig. 104A View FIGURE 104 ); sternum IX without mesolateral ridges; sternum IX ( Fig. 104C View FIGURE 104 ). Preanal appendage shorter than tergum X, but greater than 2/3 length, narrowly elliptic, setae long, but not filamentous or longer than appendage ( Fig. 104A, B View FIGURE 104 ). 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 basodorsally; broad basally, constricted at mid­length ( Fig. 104A, B View FIGURE 104 ). Harpago sharply tapered; peglike setae few, apical ( Fig. 104A, C View FIGURE 104 ). Phallic endotheca with paired apicolateral lobes, apicolateral lobes large and rounded; phallotremal sclerites small, longest dimension 1/2 diameter of phallobase; dorsal sclerite ovoid, in dorsal view horseshoe­shaped ( Fig. 104D, E View FIGURE 104 ).

Female. Unknown.

Holotype male: BRAZIL: Paraná: Municipio Corbélia, Rio Novo , headwaters, 24°53'53”S, 53°14'54"W, 700 m, 4­7.iv.1998, Holzenthal & Huisman ( MZUSP). GoogleMaps  

Distribution. Brazil.

Etymology. I am very pleased to name this species for Jolanda Huisman, who collected it.


Museu de Zoologia da Universidade de Sao Paulo