Neoathripsodes holzenthali Dias, Quinteiro & Calor, 2015, new species
Creators: name: Dias, Everton S.
name: Quinteiro, Fabio B.
name: Calor, Adolfo R.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Leptoceridae
Neoathripsodes
Neoathripsodes holzenthali

description: Neoathripsodes holzenthali, new species
(Figs. 2–3)
Diagnosis. The new species differs from the type species of the genus by the following characters: Segment IX is long ventrally and short dorsally when observed in lateral view; segment X is broad basally and apically, with a constriction in the middle region in dorsal view. The superior appendages each have a truncate base in dorsal view. The phallus has a phallobase with a basodorsal spine projected dorsad and a pair of long dorsolateral parameres in lateral view.
Adult. Length of each forewing 4.7–5.6 mm (n=18); length of each hind wing 3.8–4.6 mm (n=10). Head. Color dark brown (in alcohol). Antennae long, about twice as long as forewings. Maxillary palps dark brown, all segments subequal in length and width, except second segment which is 1/3rd longer than the others. Labial palps dark brown, each 3-segmented. Thorax. Dark brown; tibial spur formula 1,2,2; first pair of legs with apical tibial spur small; mid- and hind tibiae each with two apical spurs, one short and one long. Abdomen. Segments I–VIII subequal, without modifications.
Male. Length of each forewing 4.8–5.6 mm (n=10). Length of each hind wing 4.0– 4.6 mm (n=10).
Thorax. Forewings dark brown, with forks I and V (Fig. 2 A); fork I sessile; R1 vein thickened in its distal half; veins R2+3, R4+5 and Cu1b very thick (Fig. 2 A); discoidal cell narrow, almost obliterated by thickened nature of R2+3 and R4+5 and sectoral crossvein (Fig. 2 A); crossveins r-m and m-cu present, fork V very deep, originating before mcu crossvein (Fig. 2 A). Hind wing dark brown, narrow, with forks I and V present, crossvein r-m absent (Fig. 2 B).
Abdomen. Segment IX annular, with anterior margin smoothly sinuate and concave dorsolaterally in lateral view (Fig. 2 C), this segment longer ventrally than dorsally; with blunt posteromesal projection in dorsal view (Fig. 2 D). Segment X with apex divided dorsomesally along 1/3rd of its total length, broad basally and apically, with Vshaped lateral constrictions at midlength and with eight apical setae in dorsal view (Fig. 2 D); in lateral view, broad basally, with apex pointed and directed dorsad (Fig. 2 C). Superior appendages quadrate, their basolateral margins acute in lateral and dorsal views (Fig. 2 C, 2D), apically truncate in lateral view (Fig. 2 C) or rounded in dorsal view (Fig. 2 D). Inferior appendages each 2-segmented, robust, bent dorsad with constriction near base and with incision in its distal half, forming two lobes; apicoventral lobe slender and shorter than dorsal lobe; dorsal lobe digitate with row of setae on dorsal margin and apex curved dorsad in lateral view (Fig. 2 C); harpago with broad base, tapering apically to strongly curved apex hooked mesad in ventral view (Fig. 2 G). Phallobase well developed and sclerotized with dorsal spine curved dorsad in basal region in lateral view (Fig. 2 E); phallicata membranous dorsally in lateral view (Fig. 2 E); pair of long parameres present dorsolaterally in lateral view (Fig. 2 E); in ventral view, two pairs of symmetrical parameres (Fig 2 F); phallotremal sclerite triangular in lateral view (Fig. 2 E), in ventral view U-shaped (Fig 2 F).
Female (Fig. 3). Length of each forewing 4.7–5.5 mm (n=8). Length of each hind wing 3.8–4.5 mm (n=8). Thorax. Similar to male except each forewing with veins R2+3 and R3+4 not thickened, discoidal cell large and broad, crossvein m-cu absent, forks I, III and V present, fork I sessil, fork V much shallower than that of male (Fig. 3 A); Hind wings each with veins Sc and R forming thickened cell at base, crossvein r-m present (Fig. 3 B).
Abdomen. Pair of low sclerotic bulges IXa longitudinally short in lateral view (Fig. 3 C), with pair of invaginations distally separating them from lateral bases of setose bulges IXb in dorsal view (Fig. 3 D); bulges IXb transverse, rounded apicodorsally with row of apicodorsal setae in lateral and dorsal views (Figs. 3 C, 3D). Bulges IXc produced in triangular lamellae, in lateral view (Fig. 3 C) broad basally and pointed apically, their apices exceeding paired apices of external parts of gonopods VIII and IX (e.gon.VIII+IX) in length (Figs. 3 C, 3D, 3E). In ventral view (Fig. 3 E), these latter sclerites e.gon.VIII+IX collectively broad basally, tapering distally, apically terminating in pair of pointed, digitate processes near middle (Figs. 3 D, 3E). Spermatheca sclerite complex, cylindrical, rounded, and with blunt process anteriorly in dorsal and ventral views (Figs. 3 D, 3E).
Immatures. Unknown.
Holotype male. BRAZIL: Bahia: Camacan, Reserva Particular do Patrimônio Natural Serra Bonita, stream after the dam supply, 15°23’26.6”S, 039°33’57.2”W, el. 828 m, 26.xi.2011, UV Light Pan trap, F.B. Quinteiro, E.S. Dias & T. Duarte (alcohol; MZUSP). Paratypes. same data as holotype, except 10 males, 3 females (alcohol; MZUSP); same data, except 6 males, 3 females (alcohol; UMSP); same data, except 14.ii.2014, A.R. Calor &V. Gomes, 8 males; same data, except 15.ii.2013, 19 males, 4 females; same data, except 15°23’28”S, 039°33’66”W, el. 820 m, 31.vii.2008, UV Light Pan trap, A.R. Calor, L.S. Lecci, L.C. Pinho & R.A. Moretto, 2 males, 1 female (alcohol; UFBA); same data, except 15°23’28”S, 039°33’57”W, el. 833 m, 04.xi.2009, A.R. Calor, F.B. Quinteiro & D. França, 1 male (alcohol; UFBA); same data, except 15°23’26”S, 039°33’58”W, el. 822 m, iv.2009, Malaise trap 2, A.R. Calor, L.S. Lecci, L.C. Pinho & R.A. Moretto, 2 males (pinned, UFBA); same data, except Fazenda Valdemar da Farmácia, 15°25’18.6”S, 039°33’59.3”W, el. 309 m, 28.iii.2011, UV Light Pan trap, A.R. Calor, F.B. Quinteiro, D. França & H. Barreto, 1 male (alcohol; UFBA); same data, except 15°23’31.1”S, 039°33’52.2”W, el. 798 m, 29.iii.2011, UV Light Pan trap, F.B. Quinteiro, D. França & H. Barreto, 2 males (alcohol; UFBA); same data, except 15°23’15.7”S, 039°33’57.3”W, el. 821 m, 25.xi.2011, UV Light Pan trap, F.B. Quinteiro, R. Mariano, E.S. Dias, T. Duarte & V. Silva, 2 males, 2 females (alcohol; UFBA); same data, except 15°23’36.1”S, 039°33’52.7”W, el. 774 m, 25.xi.2011, UV Light Pan trap, F.B. Quinteiro, R. Mariano, E.S. Dias, T. Duarte & V. Silva, 1 male (alcohol; UFBA); same data, except 15°23’09.1”S, 039°34’03.1”W, el. 816 m, 27.xi.2011, UV Light Pan trap, F.B. Quinteiro, E.S. Dias & T. Duarte, 1 male, 3 females (alcohol; UFBA); same data, except 15°23’17.6”S, 039°33’56.3”W, 27.xi.2011, UV Light Pan trap, F.B. Quinteiro, E.S. Dias & T. Duarte, 1 female (alcohol; UFBA).
Distribution. Brazil (BA).
Etymology. The specific name is in honor of Dr. Ralph W. Holzenthal, the author of the genus Neoathripsodes, who has been instrumental in contributing to our knowledge of Neotropical caddisflies.
Taxonomic remarks. The new species presents many morphological differences from its congener. The males of Neoathripsodes holzenthali n. sp. have forewings each with its discoidal cell more elongated longitudinally, placed in the middle of the wing. The male R1 vein is thickened, especially distal to the discoidal cell, differently from N. anomalus. Additionally, male fork V is much deeper than that of N. anomalus (originating nearly at the fork of Cu1 and M) and crossvein r-m is absent in the male hind wings of the new species. The presence of a r-m crossvein in each hind wing was thought to be a diagnostic character in the genus (Holzenthal 1989). However, N. holzenthali n. sp. contradicts this assertion, since r-m is not present in the hind wings of the male of the new species, although it is present in the female.
While the male genitalia of N. holzenthali n. sp. have the dorsal posteromesal margin of segment IX broad and quadrate, in dorsal view, N. anomalus has the same structure narrow and acuminate. Segment X of the new species is wide in its apex and base, but constricted at midlength in dorsal view, while in N. anomalus it is large, from the base to the middle portion, without constriction, and the apex is narrower than in the new species, in dorsal view. The superior appendages of N. holzenthali n. sp. are apically rounded (dorsal view) or truncate (lateral view) and truncate at the anterior basolateral margins in dorsal and lateral views. In Neoathripsodes anomalus this appendage is ovoid in dorsal and lateral views, with smooth edges. The inferior appendages of the new species are more robust, each having a row of setae on the anterodorsal margin, and the distal half of each inferior appendage is curved dorsad, while the anterior margin of each inferior appendage in N. anomalus does not have a row of setae and is straight. Differing from the generic diagnosis, the female forewings do not have veins R2+3 and R4+5 thickened at the discoidal cell and fork III is present (vein M1+2 branched into M1 and M2). Intraspecific variation can be seen in males in the direction of the dorsal spine on the phallobase (upcurved in lateral view), the shape of the anterobasal border of the phallobase (enlarged, lateral view), and the shape of the apex of the slightly rounded dorsal margin of segment IX (in lateral view).
description: Published as part of Dias, Everton S., Quinteiro, Fabio B. & Calor, Adolfo R., 2015, A new species of Neoathripsodes Holzenthal, 1989 (Trichoptera: Leptoceridae) with new generic and species records in Bahia State, Brazil, pp. 370-380 in Zootaxa 4032 (4) on pages 372-375, DOI: 10.11646/zootaxa.4032.4.2, http://zenodo.org/record/237320