Calythea andina, Gomes & Carvalho, 2022

Gomes, Lucas Roberto Pereira & Carvalho, Claudio José Barros de, 2022, Taxonomy of the Neotropical species of Calythea (Anthomyiidae: Diptera), with description of two new species from South America, Revista Brasileira de Entomologia (e 20210102) 66 (1), pp. 1-11 : 3-7

Calythea andina new species

urn:lsid:zoobank.org:act:A7626B36-F747-4C07-A79A-5CC8B139F444

( Figs. 1 , 4 a-d, 6)

Diagnosis. Calythea andina new species can be separated from the other species of the genus in having the distance between the presutural acrostichal rows, at least the two first pairs of setae, similar to the distance to dorsocentral rows; calypters white, with apical half of upper calypter brownish, calypter margin basally brownish.

Description. Male holotype. Body length: 4.5 mm. Wing length: 4.5 mm.

Thorax black, silvery pruinose on postpronotal lobe and notopleuron; pronotum pruinose basally, parallel to notopleural suture and extending to transverse suture ( Fig. 1b ). Calypters white with basal edge brown and apical edge white. Halter basally brownish and yellow apically. Legs black with pulvillus yellowish. Abdomen black, silvery pruinose on tergites 2-5, forming two dorsal almost triangular spots, segments 3 and 4 with prolonged spots laterally and apically.

Head. Eyes bare. Frontal vitta very narrow, distance between eyes shorter than width of anterior ocellus ( Fig. 1a ). 4-5 pairs of frontal setae. Face projecting beyond frontal angle.Gena shorter than length of pedicel. Parafacialia very narrow, with about 1/5 of postpedicel width. Postpedicel twice longer than pedicel. Pedicel with long dorsal setae, shorter than pedicel.

Thorax. 2 postpronotals; dorsocentrals 2+3; acrostichals 4+8 setulaelike, with only prescutellar developed; prealar absent. Anepisternum with row of 4 posterior setae and upward anterior seta below anterior notopleural seta. Scutellum with a pair of basal, preapical and apical setae; apical seta almost twice as long as basal seta. Meron with a tuft of 4-5 setulae. Katepimeron with 7-8 setulae.

Legs. Fore tibia with 1 submedian p seta; 1 preapical d seta, and 1 apical pv; fore pretarsus with 1 basal v seta. Mid femur with 4 v setae at base; and 2 p preapical setae; midtibia with 1 median pv seta, 1 submedian p seta; preapical seta on av, d, pv, and v. Hind femur with 2 av rows, 1 long and stout and 1 long fine; 2 ad, 2 d, and 1 pd preapicals; 1 pv row long and sparse setae; hind tibia with a submedian av, 1 supramedian and 1 submedian ad, and a long submedian pd seta three times longer than tibia width; preapical seta on av and d; hind pretarsus with 1 basal v seta.

Abdomen. With many covered setulae; sternite 1 setulose, setulae twice longer than length of sternite; tergite 3-5 with long median and lateral marginal seta, terminal segment with apical and discal setae; sternite 5 rectangular with a serrated edge on its posterior incision ( Fig.4a ).

Terminalia. Cerci triangular from posterior view ( Fig.4b ); surstyli, from posterior view, long and straight with rounded median projection on inner surface ( Fig. 4b ), and from lateral view, slightly curved and slightly enlarged apically ( Fig. 4c ); Hypopygium on lateral view with phalapodema long and slightly curved, pregonite with two long setae, postgonite with median long seta and three apical setulae, epiphallus distally curved and as long as postgonite, distiphallus very large and rounded ( Fig. 4d ).

Female. Unknown.

Etymology. The specific epithet andina refers to the Andean distribution of this species. The specific epithet andina (nominative, adjective feminine) is derived from the Andes Mountains, where the specimens were collected. Gender female.

Material examined. Holotype.Male. Ecuador. Imbabura, N.Perueho. Otavalo [0.2360, -78.2622], 2000m, L.E. Peña, i.1971 ( MZUSP) . Paratypes (3♂♂). Colombia . Antioquia, Alejandría [6.3759, -75.1414], A. Vélez, ii.1972, #catal 2005 ( CEUA) ; Ecuador. Imbabura, N. Perueho. Otavalo [0.2360, -78.2622], 2000m, L. E. Peña, i.1971, ( DZUP) ; Loja, La Toma, W. de Loja [-4.0081, -79.2110], 1500m, L. E. Peña, xi.1970 ( MZUSP) .

Distribution. Colombia and Ecuador ( Fig. 6 ).

Remarks. There are some male specimens from Costa Rica with 2-5 setulae on meron, which probably belong to this new species (V. Michelsen, pers. comm.).

Figures

Figure 1 Calythea andina new species Male: head, frontal view (A); habitus, dorsal view (B); habitus, lateral view (C). Bar= 0.5 mm.

Figure 4 Calythea male terminalia: C. andina new species: sternite 5, dorsal view (A); epandrium, cerci and surstyli dorsal (B) and lateral (C) view; aedeagus and associated structures, lateral view (D). Calythea cochlearis new species: sternite 5, dorsal view (E); epandrium, cerci and surstyli dorsal (F) and lateral (G) view; aedeagus and associated structures, lateral view (H). Calythea comis: sternite 5, dorsal view (I); epandrium, cerci and surstyli dorsal (J) and lateral (K) view; aedeagus and associated structures, lateral view (L).Calythea crenata: sternite 5, dorsal view (M); epandrium,cerci and surstyli dorsal (N) and lateral (O) view; aedeagus and associated structures, lateral view (P).Calythea micropteryx: sternite 5, dorsal view (Q); epandrium, cerci and surstyli dorsal (R) and lateral (S) view; aedeagus and associated structures, lateral view (T).

Figure 6 Map of Calythea species from Neotropical region. Circles= literature records; triangle= new records.