Atopsyche (Atopsaura) blahniki, Santos, Allan P. M. & Holzenthal, Ralph W., 2012

Santos, Allan P. M. & Holzenthal, Ralph W., 2012, Three new species of Atopsyche Banks (Trichoptera, Hydrobiosidae) from Brazil, ZooKeys 207, pp. 65-78 : 66-67

Atopsyche (Atopsaura) blahniki sp. n. Figs 1, 4, 7

Diagnosis.

This new species is most similar to Atopsyche zernyi Flint, also described from Brazil. Both species have an apical process on the first article of the inferior appen dage as long as the second article, and a phallotheca with long paired processes, apically upturned and narrow. However, Atopsyche blahniki sp. n. differs from Atopsyche zernyi by the narrower parapod, longer filipod (exceeding length of parapod), and in the apices of the paired processes from the phallotheca, which bear several spines on their lateral edges.

Male.

Forewing length 5.5 mm (n=1). Overall body color brown; antennal scape brown, with long brown setae, pedicel brown, basal flagellomeres yellow, apical flagellomeres brown; setae of palps yellow; frons and vertex of head with long, erect brown and whitish setae; legs yellowish brown, coxae and femora of forelegs darker brown. Forewings brown; erect setae on veins forming irregular pattern of alternate dark brown and yellow setae; apex of wing with fringe of alternating patches of dark brown and yellow setae. Forewing venation complete (Fig. 4A); R1 branched; stem of fork I about twice its length; fork II long, sessile; stem of fork III equal to its length; fork IV long, sessile; stem of M almost straight between m-cu crossvein and first fork of M; fork V long, narrow; Cu2 long, converging near fused anal veins; apex of fused anal veins very short. Hind wing (Fig. 4B) with Sc and R1 fused apically; forks I, III, and V present, the first with a short stem, the last long with a short stem, stem of fork III equal to its length; forks II and IV absent; M3+4 not reaching wing margin; Cu2 long and almost straight; 1A long and sinuate. Nygmas indistinct in both wings. Tergum II with pair of prominent glands at posterolateral margin (Fig. 7A); tergum III with pair of prominent gland at anterolateral margin, lined at opening with minute setae (Figs 7A, 7B). Sternum V with pair of small, rounded glands on anterolateral margins (Fig. 7C). Sterna VI and VII with prominent spine-like ventral processes on posteromesal margins.

Male genitalia.

Segment IX, in lateral view, long (Fig. 1A). Parapod narrow, simple, with small dorsolaterally directed tooth-like projections and short, stout setae (Figs 1A, 1B, 1C). Filipod long, slender, with elongate setae along length, apex attenuate (Fig. 1A). Preanal appendage short, rounded, setose (Figs 1A, 1C). Inferior appendage, first article long, slightly widened apically, otherwise relatively narrow and of uniform width, with subtriangular apical process, nearly equaling second article in length (Figs 1A, 1D); second article small, with subacute apex and small rounded carina ventrally (Figs 1A, 1D). Proctiger, in lateral view, broadly widened apically, with truncate apical margin, covered with minute setae, apicodorsal margin with long setae (Fig. 1A). Phallic apparatus complex (Fig. 1E, 1F); phallotheca broadly rounded basally, with narrow ventral process articulating with inferior appendages (Fig. 1E); posteriorly divided into long, paired processes (Fig. 1F); processes apically upturned and narrow, covered with minute setae and bearing spines on lateral edges (Figs 1E, 1F); aedeagus an elongate, stout, spine-like structure, with slight ventral curvature near base (Fig. 1E).

Holotype male.

BRAZIL: Rio de Janeiro: Cachoeiras de Macacu, Rio Souza, 16°26.567'S, 42°37.957'W, 150 m, 16.iii.1996, Holzenthal, Rochetti & Oliveira (pinned) (UMSP000031906) (MZSP).

Paratypes.

BRAZIL: Rio de Janeiro: same data as holotype, 23 females (pinned) (17 females, UMSP; 2 females, NMNH; 2 females, MZSP; 2 females, DZRJ).

Etymology.

This new species is named in honor of Dr. Roger Blahnik, who identified this new species.