Maruina (Aculcina) mucugensis Bravo & Araújo 2018, sp. nov.
Creators: name: Bravo, Freddy
name: Araújo, Maíra Xavier
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Maruina
Maruina mucugensis

description: Maruina (Aculcina) mucugensis sp. nov.
Figs. 7–15
Diagnosis. Vertex 0.3 times the length of the head. Eyes contiguous, with 3 facet rows; interocular suture absent. Wing with R3 connected to R2. CuA2 reaching the wing apex. Hypandrium sclerotized, stripe like. Aedeagus bifid, subcylindrical, fused at apex.
Description. Adult male. Head (Fig. 7): Vertex 0.3 times the length of the head; vertex scar patch without a distinct glabrous central area; eyes contiguous; eye bridge with 3 facet rows; interocular suture absent; frontal scars in two slightly separated patchs. Antenna (Figs. 8–9): scape subcylindrical, approximately the same length of pedicel; pedicel subspherical; flagellum with 13 flagellomeres, all barrel-shaped; a pair of short, single filamented ascoids are presented on flagellomere 3 and following; apiculus absent on flagellomere 13. Palpus formula = 1.0:1.2:1.3:2.1 (Fig. 7). Wing (Figs. 10–11): lanceolate, Sc short, not reaching C; R2+3 and R5 not connected to Rs; R3 connected to R2; R5 ending at tip of wing; M2 not connected to M1; M3 not connected to common vein of M; CuA2 not connected to CuA1; CuA2 reaching C; C with break in the anal area (Fig. 11). Abdomen (Fig. 12): sternites II–V with internal sclerotized chitinous bands without tuft of bristles. Terminalia (Figs. 13–14): hypandrium sclerotized, stripe like, narrow (Fig. 13); gonocoxites longer than wide (Fig. 13); gonostylus with approximately the same length of gonocoxite, with base wider than apex (Fig. 13); ejaculatory apodeme 2.0 times the length of gonocoxite, hemicircular (Fig. 13). Aedeagus symmetrical, bifid, subcylindrical (Fig. 13); aedeagal spines lacking. Parameral sheath present, subcylindrical with distal apex tectiform (Fig. 13), ventrally complex, with sclerite anteriorly bifid articulated to gonocoxal apodemes (Fig. 14). Epandrium plate-like (Fig. 13); subepandrial sclerite Y-shaped, with distal arms sclerotized; hypoproct micropilose, (Fig. 13); epiproct smaller than hypoproct, triangular ending after the distal margin of hypropoct (Fig. 13); cerci digitiform, 2.2 times the length of gonostylus with one apical tenaculum (Fig. 13).
Female (Fig. 15). Similar to male except for the following: subgenital plate wider basally; hypovalve bifid; oviduct as figured; cerci conical wider basally with a basal rugose area in the ventral surface.
Distribution. Known only from the type locality.
Type material. Holotype: 1♂, BRAZIL, Bahia, Mucugê, Projeto Sempre Viva, 12°59’32.3”S 41°20’31.2”W, 945 m asl, 15.v.2015, Bravo, F. col. (MZFS). Paratypes: 13 ♂ and 27 ♀ same data as holotype (8 ♂ and 20 ♀ (MZFS); 5 ♂ and 7 ♀ (BMNH).
Etymology. The name of the species is based on type locality.
Remarks. The presence of internal sclerotized chitinous bands in the abdominal sternites II–V in Maruina mucugensis sp. nov., is a unique characteristic between the Maruina species. Sternal sclerotized chitinous bands are observed for three species of Maruina (Aculcina). In M. caceresi Wagner, 1988 and M. guria the sclerotized chitinous bands are present in sternites V–VIII and M. colombicana Wagner & Joost, 1994 in sternites VI–VIII. Wagner & Joost (1994) proposed that the sclerotized bands keep the abdomen retracted through the action of muscles attached to them.
description: Published as part of Bravo, Freddy & Araújo, Maíra Xavier, 2018, Two new species and new records of Maruina Müller, 1895 (Diptera: Psychodidae) in Brazil, pp. 189-194 in Zootaxa 4415 (1) on pages 190-193, DOI: 10.11646/zootaxa.4415.1.11, http://zenodo.org/record/1241819