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

description: Phylloicus aculeatus (Blanchard)
Figs. 11, 12
Phylloicus aculeatus (Blanchard, 1851:138) [Type locality: Chile; MNHNP; female; in Macronema]. — Flint 1974a:84 [female lectotype, not Hydropsychidae, but Phylloicus]; 1990:119 [distribution].
Phylloicus distans Navás, 1918:226 [Type locality: Chile, Marga­Marga, Los Perales; MZB; male]. — Flint 1974a:84 [to synonymy].
Phylloicus aculeatus is easily recognized. It is the only calamoceratid known from the Chilean subregion. The long, paired digitate processes of tergum X (Fig. 11A, B) are plainly visible even in uncleared specimens. The inferior appendages appear one­segmented, with the harpago large, not distinct from the coxopodite, and with numerous peglike setae on the mesoventral surface.
Adult. Forewing length 10.3­12.5 mm, n = 147.
Head dark brown. Maxillary palps dark brown. Antenna twice forewing length; chestnut brown. Dorsal pterothorax dark brown; ventrolateral thorax golden brown. Legs golden brown. Metathoracic leg of male with posterior fringe of long setae. Tibial spur formula — 2,4,4. Forewing flat; chestnut brown; without colored markings.
Male. Preterminalic abdominal terga without anteromesal notches. 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 without mesal ridge; posterior margin with irregular mesal projection; dorsomesal lobe covered with fine ridged sculpturing (Fig. 11B); lateral ridge absent; dorsal pleural setae approximately 15, ventral pleural setae absent (Fig. 11A); sternum IX without mesolateral ridges; sternum IX (Fig. 11C). Preanal appendage less than 2/ 3 length of tergum X, widest near base, setae long, but not filamentous or longer than appendage (Fig. 11A, B). Tergum X without basal lobes; basodorsal process absent; basolateral processes long, length at least twice diameter; apex, in lateral view, with ventral projection, in dorsal view, notched, notch deep and triangular; with small setose mesal lobe at mid­length; with longitudinal row of short setae sublaterally; lateral margins extending over bases of paired, truncate apical processes (Fig. 11A, B). Harpago large, nearly equal to coxopodite and with base indistinct from coxopodite; peglike setae many, mesoventral (Fig. 11A, C). Phallic endotheca with paired apicolateral lobes and paired basolateral lobes, basolateral lobes large and round, apicolateral lobes large and rounded; phallotremal sclerites average size, longest dimension less than diameter of phallobase; dorsal sclerite ovoid, in dorsal view horseshoe­shaped (Fig. 11D, E).
Female. Preterminal abdominal terga without anteromesal notches. Sternum VII without anteromesal process. Tergum VIII without posterolateral brush; sternum VIII cleft posteromesally to anterior ridge; sternum VIII (Fig. 12C). Tergum IX without mesal ridge (Fig. 12B). Sternum IX anterior and posterior lobes darkly sclerotized and striate, without distinct area of thin cuticle or invagination (Fig. 12A). Tergum X appendage shorter than mesal lobe, base marked by faint suture line, apex rounded; mesal lobe lightly sclerotized; digitate lateral processes long, at least twice diameter, or absent (Fig. 12B). Sternum X without setae in membrane (Fig. 12A). Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite truncate anteriorly, posterolateral projections rounded; posterior sclerite ovoid; posterior end of spermatheca membranous (Fig. 12A).
Material examined. ARGENTINA: Neuquen: 13 km E Quila Quina, 27.i.1974, Flint — 2 males (NMNH); 3 km S Va. La Angostura, 4.ii.1974, Flint — 1 male (NMNH); 3 km W Estación Forestal Pucara, 30.i.1974, Flint — 1 male, 1 female (NMNH); — 1 male (UMSP); Estación Forestal Pucara, Canal, 28­29.i.1974, Flint — 1 male, 1 female (NMNH); — 1 male (UMSP); Río Negro: El Bolson, 27.ii.1961, Kovacs — 1 male, 1 female (NMNH); CHILE: 16.xi.1933, Stuardo — 1 female (DEI); Calbuco, Faz — 1 male (DEI); 1843, Gay — P. aculeatus lectotype female (MNHNP); Comudes, 17.i.1902, Schönemann — 5 males, 3 adults (ZMHU); 28.i.1902, Schönemann — 1 adult (ZMHU); 16.ii.1902, Schönemann — 1 male (ZMHU); Manguehue, 28.xii.1932, Stuardo — 1 male (DEI); Aisén: Puerto Puyuguapi, 44°21'03”S, 72°34'27"W, 5.ii.1940, Schwabe — 1 male (DEI); Araucania: near Los Gringos Camp, 1300 m, 29.i.­5.ii.1979, D & M Davis; Akerbergs — 2 males, 2 females (NMNH); 6­11.i.1982, Davis — 2 males, 2 females (NMNH); 5­9.i.1989, Peña G. — 1 male (NMNH); Bío­Bío: Caledonia, E Mulchén, 700­900 m, 6­ 15.ii.1981, Peña G. — 1 male (NMNH); Contulmo (El Peral), 15.i.1967 — 1 female (NMNH); Contulmo, 1.viii.1904, Schönemann — 1 adult (ZMHU); Ralco / Trafa­Trafa, 400 m, 19­22.xi.1994, Peña G. — 1 female (NMNH); Río Duqueco, Río Duqueco, Hacienda San Lorenzo, E Los Angeles, 1000 m, 20­23.i.1991, Peña G. — 2 males (NMNH); Arauco, Butamalal, 23­31.i.1954, Peña G. — 1 female (DEI); Caramavida, 25­31.xii.1953, Peña G. — 2 males (DEI); Ñuble Province, Alto Tregualemu, ca. 20 km SE Chovellen, 500 m, 26­27.i.1979, D & M Davis; Akerbergs — 2 females (UMSP); Ñuble, Recinto, 36°48'00”S, 71°44'00"W — 2 males, 1 female (BMNH); 30.xi.1951, Peña G. — 1 male (CNC); Cauquenes: Tregualemu, 35°56'00”S, 72°43'00"W, 11­12.xii.1993, C & O Flint — 1 female (UMSP); De los Lagos: brook in Fdo. Walper, 16.ii.1958, Illies — 3 males (NMNH); Pte. La Caldera, 42°40'00”S, 74°00'00"W, 26.xii.1993, C & O Flint — 2 males (NMNH); Rincon de Piedra, ca. 23 km SE Valdivia, 200 m, 23.ii.1979, D & M Davis; Akerbergs — 2 males, 1 female (NMNH); Chiloé, 13­15.i.1981, Marin — 13 males, 1 female (NMNH); — 1 female (UMSP); 1 km E Lago Tepuhueco ca. 40 air km SW Castro, 100 m, 23­25.xii.1981, Davis — 1 male (NMNH); Ahoni Alto, 42°47'00”S, 72°35'00"W, 24.xii.1993, C & O Flint — 2 males (NMNH); Ahoni, 30 km SE Chonchi, xi.1988, Peña G. — 4 females (NMNH); i.­ii.1989, Peña G. — 2 males, 1 female (UMSP); Aucar, 6.i.1952, Peña G. — 5 males (CNC); Puntra, ca. 30 air km S. Ancud, 50 m, 21­22.xii.1981, Davis — 1 male (NMNH); Terao, W end, 42°42'00”S, 73°40'00"W, 23­27.xii.1993, C & O Flint — 1 male (NMNH); Llanquihue, Casa Pangue, 4­10.xii.1926, Edwards, F & M — 2 males (BMNH); Peulla, 41°06'00”S, 72°02'00"W, 12­13.xii.1926, Edwards, F & M — 1 male (BMNH); Osorno, brook at L. Puyhue, 17.xii.1957, Illies — 1 male (NMNH); Maicolpué, 40°34'00”S, 73°44'00"W, 21.xii.1993, C & O Flint — 2 males (NMNH); Pucatrihue, 26­ 31.i.1980, Peña G. — 1 male (UMSP); — 7 adults (NMNH); 1­12.ii.1980, Peña G. — 5 males, 5 females (NMNH); 12­26.ii.1985, Peña G. — 2 adults (NMNH); P. N. Puyehue, Ag. Calientes to 3 km W Osorno, 600 m, 12­20.xii.1981, Davis — 1 male (NMNH); Valdivia, Enco, 26.ii.1955, Peña G. — 1 male (DEI); Pellaifa, mtn. brook, 12.ii.1958, Illies — 1 male (NMNH); Del Maule: Forel Carrizalillo, 250 m, 30.i.­5.ii.1981, Peña G. — 1 male (NMNH); Las Tablas, E Curico, ii.1985, Peña G. — 4 adults (NMNH); Curico, Coigual, 13.i.1955, Peña G. — 1 male (DEI); Linares, Emb. Bullileo, 36°18'00”S, 71°25'00"W, 11­12.i.1994, C & O Flint — 1 male (NMNH); Región Metropolitana: Santiago, El Manzano, 9.ii.1952, Peña G. — 1 female (CNC); Santiago: San Juan de Pirque, 33°38'00”S, 70°30'00"W, 11.xi.1927 — 1 male, 1 female (MZB); Valdivia: Las Trancas, W La Union, 23­29.i.1995, Peña G. — 1 male (NMNH); Valparaiso: Cuesta El Melon, 14­ 16.xi.1985, Peña G. — 5 males, 5 females (NMNH); Quillota, Los Perales, Estero Marga­ Marga, 33°01'14”S, 71°33'41"W,. iii.1925 — 2 males (MZB); i.1927 — 1 male (MZB); ii.1927 — 1 male (MZB); VIII Región del Bío­Bío: small trib. to Río Queuco, 5 km E Ralco, 37°51'36”S, 71°36'14"W, 500 m, 16.i.2000, Holzenthal & Muñoz — 2 males (UMSP).
Distribution. Argentina, Chile.
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 17-19, DOI: 10.11646/zootaxa.275.1.1, http://zenodo.org/record/5019235