Phylloicus bertioga Prather 2003, new species
Creators: name: PRATHER, AYSHA L.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Calamoceratidae
Phylloicus
Phylloicus bertioga

description: Phylloicus bertioga, new species
Figs. 23, 24
This species can be recognized by the single ivory band on the forewing and the short preanal appendages of the male. Neither of the male specimens had the phallic endotheca fully everted, so I am unable to describe the membranous lobes.
Adult. Forewing length 7.7­8.8 mm, n = 3.
Head dark brown, with dorsomesal crest of black setae. Maxillary palps chestnut brown. Antenna twice forewing length; dark brown, with narrow patches of pale sensilla on anteromesal surface of each flagellomere. Dorsal pterothorax dark brown, lateral margins black; ventrolateral thorax golden brown. Femora golden brown; foretibiae dark brown; mesotibiae dark brown; metatibiae dark brown; tarsi dark brown. Metathoracic leg of male without posterior fringe. Tibial spur formula 2,4,4. Forewing flat; dark brown; with single transverse band; distal band ivory, not reaching either wing margin, 1/2 width of wing or less. 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 without anteromesal process. Sternum VIII similar to anterior sterna, sternum IX not elongate. Tergum IX with short mesal ridge extending from anterior notch; posterior margin not distinct from base of tergum X (Fig. 23B); lateral ridge absent; dorsal pleural setae approximately 3, ventral pleural setae absent (Fig. 23A); sternum IX with paired mesolateral ridges; sternum IX (Fig. 23C). Preanal appendage less than 2/3 length of tergum X, as long as wide, rounded apically, setae long, but not filamentous or longer than appendage (Fig. 23A, B). Tergum X without basal lobes; basodorsal process absent; basolateral processes short, length less than or equal to diameter; apex, in lateral view, truncate, in dorsal view, notched, notch round (Fig. 23A, B). Harpago long, curving mesally and tapering apically; peglike setae tiny, mesal (Fig. 23A, C). Phallotremal sclerites average size, longest dimension less than diameter of phallobase; dorsal sclerite ovoid, in dorsal view horseshoe­shaped (Fig. 23D, E).
Female. Preterminal abdominal terga with anteromesal notch. Sternum VII without anteromesal process. Tergum VIII with sparser posterolateral brush of setae (Fig. 24B); sternum VIII cleft posteromesally to anterior ridge; sternum VIII (Fig. 24C). Tergum IX with mesal ridge extending 1/3 length of segment (Fig. 24B). Sternum IX anterior and posterior lobes darkly sclerotized and striate, with irregular, semimembranous pockets lateral to vaginal opening (Fig. 24A). Tergum X appendage length equal to mesal lobe, base marked by faint suture line, apex rounded; mesal lobe lightly sclerotized; digitate lateral processes absent (Fig. 24B). Sternum X with patches of short fine setae posterolaterally to anal opening (Fig. 24A). Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite rounded anteriorly, posterolateral projections absent; posterior sclerite ovoid; posterior end of spermatheca a tiny sclerotized sphere (Fig. 24A).
Holotype male: BRAZIL: São Paulo: Bertioga, 23°51'00”S, 46°09'00"W, 5 m, 7­ 9.x.1996, Becker (MZUSP).
Paratypes: BRAZIL: São Paulo: Bertioga, 23°51'00”S, 46°09'00"W, 5 m, 7­ 9.x.1996, Becker — 1 female, 1 male (NMNH).
Distribution. Brazil.
Etymology. Named for Bertioga, the type locality in São Paulo state.
description: Published as part of PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), pp. 1-214 in Zootaxa 275 (1) on pages 31-32, DOI: 10.11646/zootaxa.275.1.1, http://zenodo.org/record/5019235