Maruina (Aculcina) mucugensis, Bravo & Araújo, 2018

Bravo, Freddy & Araújo, Maíra Xavier, 2018, Two new species and new records of Maruina Müller, 1895 (Diptera: Psychodidae) in Brazil, Zootaxa 4415 (1), pp. 189-194: 190-193

publication ID

https://doi.org/10.11646/zootaxa.4415.1.11

publication LSID

lsid:zoobank.org:pub:9F7F0FEA-C478-4EDF-82DA-E0AA2092C91E

persistent identifier

http://treatment.plazi.org/id/03D5B815-CC40-FFFD-FF42-FAB2FE73FE92

treatment provided by

Plazi

scientific name

Maruina (Aculcina) mucugensis
status

sp. nov.

Maruina (Aculcina) mucugensis   sp. nov.

Figs. 7–15 View FIGURES 7–12 View FIGURES 13–15

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 View FIGURES 7–12 ): 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 View FIGURES 7–12 ): 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 View FIGURES 7–12 ). Wing ( Figs. 10–11 View FIGURES 7–12 ): 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 View FIGURES 7–12 ). Abdomen ( Fig. 12 View FIGURES 7–12 ): sternites II –V with internal sclerotized chitinous bands without tuft of bristles. Terminalia ( Figs. 13–14 View FIGURES 13–15 ): hypandrium sclerotized, stripe like, narrow ( Fig. 13 View FIGURES 13–15 ); gonocoxites longer than wide ( Fig. 13 View FIGURES 13–15 ); gonostylus with approximately the same length of gonocoxite, with base wider than apex ( Fig. 13 View FIGURES 13–15 ); ejaculatory apodeme 2.0 times the length of gonocoxite, hemicircular ( Fig. 13 View FIGURES 13–15 ). Aedeagus symmetrical, bifid, subcylindrical ( Fig. 13 View FIGURES 13–15 ); aedeagal spines lacking. Parameral sheath present, subcylindrical with distal apex tectiform ( Fig. 13 View FIGURES 13–15 ), ventrally complex, with sclerite anteriorly bifid articulated to gonocoxal apodemes ( Fig. 14 View FIGURES 13–15 ). Epandrium plate-like ( Fig. 13 View FIGURES 13–15 ); subepandrial sclerite Y-shaped, with distal arms sclerotized; hypoproct micropilose, ( Fig. 13 View FIGURES 13–15 ); epiproct smaller than hypoproct, triangular ending after the distal margin of hypropoct ( Fig. 13 View FIGURES 13–15 ); cerci digitiform, 2.2 times the length of gonostylus with one apical tenaculum ( Fig. 13 View FIGURES 13–15 ).

Female ( Fig. 15 View FIGURES 13–15 ). 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 GoogleMaps   : 13 ♂ and 27 ♀ same data as holotype (8 ♂ and 20 ♀ ( MZFS) GoogleMaps   ; 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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Psychodidae

Genus

Maruina