Armillipora muyu, Jaume-Schinkel & Mengual, 2024

Jaume-Schinkel, Santiago & Mengual, Ximo, 2024, A revision of the genus Armillipora Quate (Diptera: Psychodidae) with the descriptions of two new species, European Journal of Taxonomy 925, pp. 161-178 : 167-172

Armillipora muyu sp. nov.

urn:lsid:zoobank.org:act:F00EDE09-9B2D-4114-971F-6168D54DC6AF

Figs 3–5

Differential diagnosis

Male: see differential diagnosis under A. imitata sp. nov.

Etymology

The species epithet ‘muyu’ derives from the Quechuan word ‘ muyu ’, meaning circle and referring to the circular shape of the base of the ejaculatory apodeme. It is to be treated as a name in apposition.

Material examined

Holotype

ECUADOR – Pichincha • ♂; Parroquia Pedro Vicente Maldonato, Roadway to Pachijal ; 0.11882° N, 78.95802° W; alt. 750 m; 1–9 Feb. 2022; Kilian, Isabel leg.; INABIO [ ZFMK-DIP-00081675 , ZFMK- TIS-2636967 ].

Paratypes

ECUADOR • 1 ♂; same collection data as for holotype; ZFMK [ ZFMK-DIP-00081976 , ZFMK- TIS-636968 ] • 1 ♂; same collection data as for holotype; ZFMK [ ZFMK-DIP-00081977 ZFMK- TIS-2636969 ] • 1 ♂; same collection data as for holotype; ZFMK [ ZFMK-DIP-00097932 , ZFMK-TIS-2637146 ] • 1 ♀; same collection data as for holotype; ZFMK [ ZFMK-DIP-00081836 , ZFMK-TIS-2636973 ] • 1 ♂; same collection data as for holotype; 25–28 Jan. 2020; 0.11561° N, 78.95805° W; ZFMK [ ZFMK-DIP-00081975 , ZFMK-TIS-2636967 ] • 1 ♂; same data as for preceding; INABIO [ ZFMK-DIP-00081667 , ZFMK-TIS-2629905 ] .

Description

Male

MEASUREMENTS in mm (n = 5). Wing length 1.85 (2.00–1.65), width 0.84 (0.90–0.71); head length 0.40 (0.45–0.37), width 0.47 (0.52–0.41). Antennal segments: scape: 0.09 (0.10–0.08); pedicel: 0.05 (0.06- 0.05); flagellomeres 1: 0.12 (0.12–0.11), flagellomeres 2–5: 0.12 (0.13–0.11). Palpal segment 1: 0.05 (0.06–0.05); palpal segment 2: 0.06 (0.08–0.07); palpal segment 3: 0.04 (0.07–0.06); palpal segment 4: 0.12 (0.13–0.12).

HEAD. About 1.15 times as wide as long; eye bridge separated by one or less than one facet diameters, with four rows of facets, five on broadest part of eye bridge in some specimens; interocular suture as sclerotized, slightly curved line, without posterior spur; frontal patch of alveoli divided. Antennal scape about 1.8 times as long as pedicel, almost cylindrical; pedicel spherical, smaller than scape; flagellomeres fusiform and longer than scape, with scattered setae on surface, setae almost as long as flagellomere bearing them, each flagellomere with two rings of teardrop-shaped pores, apical flagellomeres absent in examined material, maximum number of flagellomeres present: 5; ascoids indistinguishable in reviewed material. Palpal segments cylindrical, palpal proportions: 1.0:1.2:1.1:2.0, last palpal segment not corrugated; labium without any strong sclerite; labella elongated and irregularly shaped with six to eight setae concentrated in darkened spot at lower outer margin, with one pre-apical spiniform and one apical spiniform tooth on each.

2+3 5 2 THORAX. Allurement organs absent, with single patch of alveoli in paraterguite and antepronotum; all coxae with stripe of one to two rows of alveoli. Wing length about two times its width; wing membrane brown-infuscated, with darkened spots on apex of longitudinal veins ( Fig. 1B ); subcostal vein short ending beyond origin of R 5; junction of R 2+3 basal to junction of M 1+2, not joining R 4, origin of M 1+2 basal to origin of R; R ending at wing apex; CuA faintly ending at wing margin.

TERMINALIA ( Figs 3C–D , 4B–C, E–G ). Hypandrium in dorsal view U-shaped, and sclerotized, joining base of gonocoxites. In lateral view hypandrium looks membranous ( Fig. 3D ) with sclerotized margin; gonocoxites joining at apex forming V-shaped sclerite placed above aedeagal complex, each with preapical lateral lump with cluster of three to four setae ( Figs 3C , 4B ), gonostyli absent; aedeagus in dorsal view straight, as single sclerite, no discernible parameres. In lateral view, aedeagus has curved apex towards hypandrium ( Fig. 4G ); ejaculatory apodeme about same length as aedeagus, in dorsal view, basal margin rounded and slightly concave in middle, in lateral view, ejaculatory apodeme looks like half-circle, with basal margin concave; gonocoxal condyles fitting in concavity on underside of ejaculatory apodeme, not triangular-shaped and not protruding beyond base of ejaculatory apodeme; epandrium rectangular, slightly wider than long, with more sclerotization at margins, lateral margins with slight concavity in middle; hypoproct tongue-shaped, shorter than epandrium and covered with small setulae, epiproct shorter than hypoproct; epandrial appendage barely hemispherical, prolonged and tapering distally, covered with small setae, lacking apical tenacula but with line of five short and cylindrical tenacula, with folded tips, and additional patch of long accessory tenacula basally concentrated in darkened patch, these accessory tenacula being as long as or longer than epandrium ( Figs 3C , 4C ).

Female ( Figs 4D , 5A–C )

Similar to male except for following characteristics: two rings of teardrop-shaped pores in flagellomeres not as well defined as in males being more scattered and smaller, flagellomeres smaller than male flagellomeres. Wing length equals 2.55 times its width. Subgenital plate long, lateral margins concave in middle, and apical margin has rectangular concavity, with two setae at margin of concavity in addition to scattered setae on surface ( Figs 4D , 5A, C ); cerci about 1.5 times as long as subgenital plate ( Fig. 5A ), each with scattered setae on basal surface; genital chamber appears asymmetrical; however, this might be due to bad slide preparation, nonetheless, structures can be seen in Figs 4D , 5B . Female of Armillipora muyu sp. nov. can be easily differentiated from female of Armillipora selvica by following characters: apical concavity in subgenital plate rectangular (rounded in A. selvica ); genital chamber with two anterior lobes in Armillipora muyu as in Figs 4D , 5B (genital chamber quadrate without anterior lobes in A. selvica , see Quate 1996: fig. 11d).

Egg ( Fig. 5D )

Female specimen contained eggs inside abdomen, shape of eggs long-ovoid, being five times as long as wide; general appearance of membrane corrugated, with irregular folds across entire surface; anterior pole of eggs has semi-circular small projection.

Remarks

In the paratype ZFMK-DIP-00081667, the palpal segments are missing; the thorax and right wing were used for DNA extraction and are not present in the slide.

Distribution

Only known from the type locality in Ecuador.

Genetics

Six specimens were successfully sequenced (ZFMK-TIS-2636967, ZFMK-TIS-636968, ZFMK- TIS-2636969, ZFMK-TIS-2636973, ZFMK-TIS-2637146, ZFMK-TIS-2629905). The maximum intraspecific uncorrected pairwise distance for COI sequences was 3.04 % or 20 bp. Genbank accession numbers are: OQ706383, OQ706381, OQ706385, OQ706386, OQ706378, OQ706376.

Figures

Fig. 3. Armillipora muyu sp. nov. B, C. Holotype, ♂ (ZFMK-DIP-00081675). A, D. Paratype, ♂ (ZFMK-DIP-00081976). A. Head. B. Wing. C. Genitalia in ventral view. D. Genitalia in lateral view. Scale bars in mm. Abbreviations: acc ten = accessory tenacula; aed = aedeagus; eja = ejaculatory apodeme; ep = epandrium; ep ap = epandrial appendage; gnx = gonocoxite; gnx co = gonocoxal condyles; hpt = hypoproct; hyp = hypandrium.

Fig. 4. A–C, E–G: ♂. D: ♀. Armillipora muyu sp. nov. A. Eye bridge and mouthparts. B. Aedeagal complex. C. Epandrium and epandrial appendages. D. Female genitalia. E. Gonocoxal condyles. F. Aedeagus in lateral view. G. Genitalia in lateral view. Scale bars = 0.10 mm. Abbreviations: acc ten = accessory tenacula; add scl = additional sclerite of ejaculatory apodeme; aed = aedeagus; eja = ejaculatory apodeme; ep = epandrium; gen cha = genital chamber; gnx = gonocoxite; gnx co = gonocoxal condyles; hpt = hypoproct; hyp = hypandrium; sub pla = subgenital plate; ten = tenacula.

Fig. 5. Armillipora muyu sp. nov., paratype, ♀ (ZFMK-TIS-2636973). A. Abdomen. B. Genital chamber. C. Subepandrial plate. D. Eggs. Scale bars in mm. Abbreviations: ap = anterior pole; gen chamb = genital chamber; pp = posterior pole; sub pl = subgenital plate.

Fig. 1. Armillipora imitata sp. nov. A–C. Holotype, ♂ (ZFMK-DIP-00097935). D. Paratype, ♂ (ZFMK- DIP-00097934). A. Head. B. Wing. C. Genitalia in dorsal view. D. Genitalia in ventral view. Scale bars in mm. Abbreviations: acc ten = accessory tenacula; aed = aedeagus; eja = ejaculatory apodeme; ep = epandrium; ep ap = ependrial appendages; gnx co = gonocoxal condyles; hpt = hypoproct; hyp = hypandrium.