Centromacronema pioneira, Dias, Everton S. & Calor, Adolfo R., 2016

Dias, Everton S. & Calor, Adolfo R., 2016, Two new species of the genus Centromacronema Ulmer 1905 (Hydropsychidae: Macronematinae) from Brazil, Zootaxa 4137 (1), pp. 129-136 : 130-133

publication ID	https://doi.org/ 10.11646/zootaxa.4137.1.10
publication LSID	lsid:zoobank.org:pub:31BFDAC5-BEA0-4C07-A9FD-9139B8BD7525
DOI	https://doi.org/10.5281/zenodo.6068492
persistent identifier	https://treatment.plazi.org/id/C80D9850-FFA1-FFC6-FF28-FDDCFB0C8876
treatment provided by	Plazi
scientific name	Centromacronema pioneira
status	sp. nov.

Treatment

Centromacronema pioneira new species

( Figs. 1 View FIGURE 1 , 2 View FIGURE 2 )

Diagnosis. This new species differs from its congeners by the following characters: forewing color pattern dark brown with a long and narrow longitudinal band of yellow setae between veins C and R1; another longitudinal band between Cu1 and Cu2, and a triangular band with dark yellow setae between veins R1 and R3 extending to the discoidal cell; the inferior appendages are each slightly enlarged in their basal 1/3 followed by a constriction in lateral view; segment X mesally enlarged in dorsal view. Centromacronema pioneira n. sp. is similar to C. nigripenne Flint 1981 , except by the morphology of the inferior appendages (not enlarged at basal 1/ 3 in C. nigripenne ), length of segment X (shorter in C. nigripenne ) and shape of setal warts at segment X (reduced, not digitate in C. nigripenne ).

Male. Length of each forewing 10.7–11.5 mm (n=6); length of each hind wing 7.8–8.0 mm (n=6). Head. Black dorsally with black setae; maxillary palps brown with dark brown setae (in alcohol). Thorax. Pronotum black dorsally, pronotal setal warts with black setae; mesoscutum and metanotum black with yellow clothing hairs. Legs pale yellow; foretibiae each with apical process ( Fig. 1 View FIGURE 1 C); tibial spur formula 0,4,4. Forewings brown, each with long and narrow longitudinal band of yellow setae between veins C and R1, longitudinal band between Cu1 and Cu2, triangular band with dark yellow setae between veins R1 and R3 extending to discoidal cell; veins Sc, R1, M2, Cu1a, Cu1b, Cu2 and A2 thickened; discoidal cell small, nearly rounded; crossveins sc -r1, r -m, m-cu, and cu1b -cu2, cu2-A present; forks I–V present ( Fig. 1 View FIGURE 1 A). Hind wings brown; veins Sc, R1, R2, and R3 fused before margin; veins R1, Cu1a, Cu1b and A4 thickened; crossveins r -m, m -cu, and cu2-A present; forks II, III, and V present ( Fig. 1 View FIGURE 1 B). Abdomen. Segment IX setose, distal margin rounded with slight median invagination in dorsal view ( Fig. 1 View FIGURE 1 F); in lateral view, longer medially than dorsally or ventrally, dorsal apex triangular, narrow posteriorly; distal margin setose dorsally and laterally ( Fig. 1 View FIGURE 1 D). Segment X bifid, each lobe enlarged mesally at midlength, apex rounded in dorsal view ( Fig. 1 View FIGURE 1 F); in lateral view, tall basally, acuminate apically and curved dorsad, setal warts well developed in middle ( Fig. 1 View FIGURE 1 D). Inferior appendages long, setose, especially basally, slightly larger in basal third, anterior margin of basal region with median invagination, apex rounded in lateral view ( Fig. 1 View FIGURE 1 D); in ventral view, setose, enlarged basally, curved mesad apically, apex rounded ( Fig. 1 View FIGURE 1 E). Phallus relatively short, well developed basally, constricted at midlength, apex truncate; wall of endotheca subquadrate in lateral view ( Fig. 1 View FIGURE 1 G); in ventral view, phallus laterally constricted at midlength, wall of endotheca subquadrate ( Fig. 1 View FIGURE 1 H).

Female. Length of each forewing 10.6–12.3 mm (n=4); length of each hind wing 7.7–9.1 mm (n=4). Head. Dark brown. Thorax. Pronotal setal warts white, rounded, in middle. Legs pale yellow; foretibiae each with apical process; tibial spur formula 0,4,4. Forewings brown; crossveins r1-r2 ,, m -cu and cu2-a present; veins R2, R3, M2, Cu1a and A2 thickened ( Fig. 2 View FIGURE 2 A). Hindwings brown; crossvein r -m present; veins Sc, R1, R2 and R3 fused for short distance distally before margin; forks II, III, and V present ( Fig. 2 View FIGURE 2 B). Abdomen. Segment VIII ventral plate (Vt pl) setose, rounded ventrally in lateral view ( Fig. 2 View FIGURE 2 D), separated by membrane (v. VIII) mesoventrally ( Fig. 2 View FIGURE 2 E). Segment IX longer than in male, on each side posterior ventrolateral apex (gon. IXa) rounded, anteroventral region constricted, ventral margin truncate, apicodorsal margin and vertical posterolateral ridge setose in lateral view ( Fig. 2 View FIGURE 2 D); in ventral view, broad in anterior region ( Fig. 2 View FIGURE 2 E). Segment Xa large, distal margin setose, rounded, with two pairs of digitate papillae separated by pair of conical cerci at dorsal apex in lateral view ( Fig. 2 View FIGURE 2 D); in ventral view, subquadrate, papillae digitate, cerci conical, setose ( Fig. 2 View FIGURE 2 E). Gonopods IXa broad basally, rounded apically on each side in lateral view ( Fig. 2 View FIGURE 2 D); in ventral view, apically rounded ( Fig. 2 View FIGURE 2 E). Processus spermathecae with anterior apex truncate in ventral view, slightly invaginated on each side below apex beyond pair of small rounded lateral processes ( Fig. 2 View FIGURE 2 C).

Immatures. Unknown.

Holotype male (alcohol, MZSP). BRAZIL: Bahia, Santa Teresinha, Pedra Branca, Serra da Jiboia, Morro da Pioneira , Córrego das Torres, 12º51’01.6’’S, 39°28’48’’W, el. 679 m, 07.viii.2014, UV Light Pan trap, E.S. Dias, L.L. Queiroz & D. Capelli.

Paratypes. Same data as holotype, except 2 males, 1 female (alcohol, MZSP); same data, except 07.viii.2009, UV Light Pan trap, A.R. Calor & L.S. Lecci, 1 male, 1 female (alcohol, UFBA); same data, except 12º51’00’’S, 39°28’48’’W, el. 678 m, 08.viii–28.ix.2009, Malaise trap, A.R. Calor & L.S. Lecci, 11 males (alcohol, UFBA); same data, except 09.viii.2008, entomological net, A.R. Calor, L.C. Pinho & R. Moretto, 1 male (pinned, UFBA); same data, except 27.viii.2008, A.R. Calor, R. Mariano, L.C. Pinho & R. Moretto, 1 male (pinned, UFBA); same data, except 5 males (alcohol, UMSP); same data, except vi.2010, Malaise trap, 4 males (alcohol, UFBA); same data, except 28.ix–04.ii.2010, Malaise, A.R. Calor & E.S. Dias, 18 males (alcohol, UFBA); same data, except 5 males (alcohol, UMSP); same data, except 6.x.2010, UV Light pan trap, D. França, R. Mariano & A. Costa, 3 males (alcohol, UMSP); same data, except Elísio Medrado, Reserva Jequitibá, GAMBA, Córrego Caranguejo, 12º52’14.6’’S, 39º28’33.7’’W, el. 496 m, 08.xi.2010, UV Light Pan trap, A.R. Calor, F.B. Quinteiro, D. França, R. Mariano & A. Costa, 1 male (alcohol, UFBA); same data, except 12º52’12.7’’S, 39º28’32.4’’W, el. 510 m, 22.x.2012, UV Light Pan trap, V. Gomes, A. Vilarino & R. Campos, 1 male (alcohol, UFBA).

Distribution. Brazil (Bahia state).

Etymology. The species epithet is a noun in apposition to the genus name, with unvarying gender, referring to Morro da Pioneira , a mountain in the Serra da Jibóia massif, where the type series was collected.