Grumichella rostrata, THIENEMANN, 1905

Calor, Adolfo R., Holzenthal, Ralph W. & Froehlich, Claudio G., 2016, Phylogeny and revision of the Neotropical genus Grumichella Müller (Trichoptera: Leptoceridae), including nine new species and a key, Zoological Journal of the Linnean Society 176 (1), pp. 137-169 : 145-146

GRUMICHELLA ROSTRATA THIENEMANN, 1905 ( FIG. 6 )

Grumichella rostrata Thienemann, 1905: 49 (Type locality: no type nor type depository designated, but name based on material probably from Brazil, Santa Catarina, Gruta dos Macacos, near Blumenau according to Holzenthal, 1986; case, pupa). – Thienemann, 1909: 41, 42, 125 [larva, pupa]. – Fisher, 1966: 10 [catalogue]. – Holzenthal, 1988a:93–95 [male, female, larva, case, pupa, distribution]. – Flint, Holzenthal & Harris, 1999: 128 [catalogue]. – Paprocki, Holzenthal & Blahnik, 2004: 12 [distribution]. – Calor, 2011: 322 [distribution]. – Paprocki & França, 2014: 57 [distribution].

Diagnosis: Grumichella rostrata can be diagnosed by the following characters: male forewing with 2 or 3 brown spots; male genitalia bearing segment X flattened, lateral view; 2nd article of inferior appendage subequal to apicodorsal portion of 1st article; apex of 2nd article acuminated, curved mesad. Grumichella rostrata is most similar to G. lecci sp. nov., but differs in having segment X without sulcus apically, and the subequal lengths of the 2nd article of inferior appendage and the apicodorsal portion of the 1st article.

Adult: Head and body yellowish.

Male: Forewing length: 8–11 mm. Forewing light golden brown, with 2 or 3 small brown spots, bearing dark setae on posterodorsal margin. Abdominal segment IX annular; in dorsal view, with anterior margin slightly convex, posterior margin nearly straight; in lateral view, pleural region sparsely setose; tergum IX without protuberances dorsally. Preanal appendage setose, at least 4× as long as wide; in lateral view, clavate, apex subacute. Segment X saddle-shaped; in lateral view flattened, dorsal margin abruptly concave at 2/3 length, with apex upcurved, ventral margin abruptly convex; segment X in dorsal view, rectangular, with posterolateral borders developed, lateral margins sinuate, with apicodorsal shelf, shelf rounded, 1/3 as wide as apex of segment X, without sulcus apically. Inferior appendage slightly concave in ventral view, with basal region tuboid, not enlarged; slightly rounded basally, setose, bearing a small basomesal protuberance; middle region of inferior appendage without constriction before apicodorsal region; 2nd article subequal in length to apicodorsal portion of 1st article, broad basally, tapering throughout length, mesal surface not excavate, apex pointed, curved mesally; apicordorsal portion of 1st article digitate, setose. Phallic apparatus simple, phallicata slightly down-curved; with pair of subequal, wide, posterodorsally directed lateral flanges, apices not acuminate; phallotremal sclerites small, U-shaped in dorsal view.

Female: Head and body yellowish. Forewing length: 6–9 mm. Forewing yellowish to brown or dark brown, without dark setae on posterodorsal region. Genitalia inseparable from congeners. Abdominal segment IX lightly sclerotized, with dorsal plate, bearing pair of setose protuberances above appendages of segment X, appendages of segment X small; valves flat, thin, lightly sclerotized, with very short setae.

Larva: Head dark brown, almost black, thoracic sclerites dark brown, almost black, legs dark brown, almost black. Length of larva 6–7 mm. Abdominal sternum I with 25–30 long setae; lateral hump sclerite very small.

Larval case: Length 7–9 mm; constructed entirely of rings of dark brown silk, gently curved, tapered, wide, with 2 distinct diagonal sutures, 1 towards posterior end and 1 more or less at midlength, posterior end with ventral, dorsally directed projection, visible externally, posterior aperture C-shaped.

Pupa: Segment IX very slender; anal process long, narrow, slender, unpigmented or slightly yellowish, apically upturned, hooked.

Pupal case: With anteroventral silken pedicel, pedicel very long, thin; anterior silken membrane with an eccentric, horizontal, slit-like opening.

Distribution: Brazil.

Material examined: BRAZIL: Bahia: Elisio Medrado, Serra da Jibóia, Faz. Jequitibá , GAMBA, Córrego Caranguejo , 12°52′127″S, 39°28′324″W, el. 510m, 28.iii.2012, Quinteiro F.B., Duarte T. & Garcia I., 2 males ( UFBA) ; Varzedo, Serra da Jibóia, Faz. Baixa da Areia Cai Camarão, 12°57′45″S, 39°27′12″W, Prop. Sr. Getulio, Córrego Cai Camarão , 24.x.2012, Gomes V., Campos R. & Vilarino A., 3 males ( UFBA) ; Minas Gerais: Rio Tanque, c. 12 km (rd) from Ipoema , 16.v.1998, UV light, Holzenthal & Paprocki, 19°32′12″S, 43°26′53″W, el. 750 m, 1 male, 2 females ( UMSP) ; Parque Estadual Itacolomi, Rio Belchior , 20.ii.1999, UV light, Paprocki & Amarante, 20°25′02″S, 43°25′38″W, el. 725 m, 2 males ( UMSP) ; Córrego Pitanga, upstream of confluence with Rio Santo Antônio , 19.x.2000, UV light, Paprocki & Ferreira, 19°05′40″S, 42°39′54″W, el. 238 m, 3 males, 1 female ( UMSP) ; Parque Estadual do Ibitipoca, Corrego dos Macacos , 19.ix.2001, UV light, Holzenthal, Blahnik, Neto & Paprocki, 21°42′33″S, 44°53′36″W, el. 1360 m, 45 males, 142 females ( UMSP) ; Córrego das Aguas Pretas & tribs., c. 15 km S Aiuruoca, 21.xi.2001, UV light, Holzenthal, Blahnik, Neto & Paprocki, 22°03′42″S, 44°38′14″W, el. 1386 m, 5 males ( UMSP) ; Rio de Janeiro: Parque Nacional do Itatiaia, Rio Campo Belo , 23.xi.2001, UV light, Holzenthal, Blahnik, Neto & Paprocki, 22°27′02″S, 44°36′49″W, el. 1300 m, 1 male, 1 female ( UMSP) ; Parque Nacional do Itatiaia, Lago Azul , 09.vii.1965, Froehlich C.G., 8 larvae ( MZSP) ; Parque Nacional do Itatiaia, Rio Campo Belo, trail to Veu da Noiva , 24.xi.2001, UV light, Holzenthal, Blahnik, Neto & Paprocki, 22°25′42″S, 044°37′10″W, el. 1310 m, 2 males ( UMSP) ; Santa Catarina: Nova Teutonia, 27°11′S, 52°23′S, 29.x.1939, Fritz Plauman, 1 male ( NMNH) ; São Paulo: Campos do Jordão , 28.i.1959 (Hotel Umuarama, riacho a jusante do lago, 22°45′44″S, 45°34′56″W, el. 1700 m), Froehliuch C.G., 1 pupa ( MZUSP) ; Parque Estadual de Campos do Jordão, Rio Galharada , 4.iii.1996, UV light & sweeping, Holzenthal & Guahyba, 22°41′40″S, 45°27′47″W, el. 1530 m, 1 larva, 3 females ( UMSP) ; Parque Estadual de Campos do Jordão, Campo do Meio , 6.iii.1996, UV light, Holzenthal & Guahyba, 22°41′45″S, 45°29′27″W, el. 1500 m, 1 pupa ( UMSP) ; Parque Estadualde Campos do Jordão, Rio Galharada , 22.i.1998, UV light, Holzenthal, Froehlich & Paprocki, 22°41′40″S, 45°27′47″W, el. 1530 m, 5 males, 9 females ( UMSP) ; Parque Estadual de Campos do Jordão, Cachoeira Galharada , 15.x.1998, UV light, Paprocki & Froehlich, 22°41′44″S, 45°27′43″W, el. 1620 m, 3 males, 18 females ( UMSP) ; Parque Estadual de Campos do Jordão, Rio Galharada , 10.ix1999, Froehlich C.G., 40 larvae ( MZUSP) ; Cachoeira do Paredão, Lajeado, Serra da Bocaina , 1.iii.2002, UV light, Holzenthal, Blahnik, Paprocki & Prather, 22°43′32″S, 44°37′16″W, el. 1550 m, 17 males, 92 females ( UMSP) ; Cachoeira do Príncipe, Lajeado, Serra da Bocaina , 4.iii.2002, UV light, Holzenthal, Blahnik, Paprocki & Prather, 22°42′55″S, 44°37′25″W, el. 1560 m, 1 female ( UMSP) ; Parque Estadual de Campos do Jordão, córrego Campo do Meio , 6.vi.2005, Calor A.R., c. 100 larvae ( UFBA) ; Parque Estadual de Campos do Jordão, Rio Galharada , acima da cachoeira, 28.iii.2007, luz UV/ branca, Calor A.R., Mariano R. & Lecci L., 4 males, 2 females ( UFBA) ; Parque Estadual de Campos doJordão, Rio Galharada , 31.iii.2007, luz UV/branca, Calor A.R., Mariano R. & Lecci L., 1 larva ( UFBA) .

Figures

Figure 6. Grumichella rostrata, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, inferior appendage, ventral view.