Bryopharsos tetracanthus Jaume-Schinkel, 2025

Jaume-Schinkel, Santiago, Kilian, Isabel C., Pazmiño-Palomino, Alex & Mengual, Ximo, 2025, Revision of the genus Bryopharsos Quate, 1996 (Diptera: Psychodidae) with the description of nine new species, European Journal of Taxonomy 1001 (1), pp. 1-51 : 40-42

Bryopharsos tetracanthus Jaume-Schinkel sp. nov.

urn:lsid:zoobank.org:act:635E31CD-1373-4E14-B29E-381911CCAE3C

Figs 1 , 22

Diagnosis

Male

Eye bridge with four facet rows ( Fig. 22A ); wing 2.4 times as long as wide; ejaculatory apodeme cylindrical and hour-glass-shaped ( Fig. 22B ), about the same length as the aedeagus ( Fig. 22D ); gonocoxal apodeme fused; surstyli with three apical tenacula ( Fig. 22B–C ); aedeagus digitiform, curved and evenly tapering towards apex ( Fig. 22D ). This species shares the same number of apical tenacula in the surstyli (three tenacula) with B. tritaleum but it can be easily differentiated by the distribution of the apical tenacula in the surstyli (closely together at the apex in B. tetracanthus sp. nov., 2 apical tenacula separated from 1 basal tenaculum in B. tritaleum ), and the shape of the aedeagus (digitiform and curved in B. tetracanthus , digitiform and straight in B. tritaleum ).

Female

Unknown.

Etymology

The specific name ʻ tetracanthus ʼ derives from the Greek word ʻτετρα-ʼ (ʻtetra-ʼ) as a prefix, meaning four, and the Greek word ʻἄκαΝΘΟςʼ (ʻákanthosʼ), meaning spine. The specific name makes reference to the four spines located in between the apical tenacula in the surstyli. Specific name to be treated as a name in apposition.

Type material

Holotype

COLOMBIA – Magdalena • ♂; Sierra Nevada de Santa Maria, El Ramo ; alt. 2400 m; 10–24 May 2000; I. Uribe leg.; Malaise trap; LACM, LACM-ENT-279397.

Description

MEASUREMENTS. In mm (n = 1). Wing length: 1.92, wing width: 0.80; head length: 0.39, head width: 0.46; antennal segments: scape: 0.08, pedicel: 0.06, flagellomeres 1–4: 0.11; palpal segment 1: 0.05, palpal segment 2: 0.06, palpal segment 3: 0.06, palpal segment 4: 0.07.

Holotype male

HEAD ( Fig. 22A ). A little wider than long; eye bridge contiguous, with four rows of facets, interocular suture absent; post-ocular alveoli not enlarged and non-distinguishable from the remaining alveoli on the head; the frontal patch of alveoli not divided, trapezoidal with the lower margin with a concavity in the middle. Antennal scape about the same length as pedicel, cylindrical; pedicel spherical, about the same length as scape; flagellomeres asymmetrical and nodiform, with scattered setae on the basal half surface, apical flagellomeres absent in examined material, the maximum number of flagellomeres present is seven; ascoids absent in examined material. Palpal segments cylindrical, palpal segment 4 apically pointed, palpal proportions: 1.0:1.2:1.2:1.4; labium without any strong sclerite; labella not bulbous with 3–4 setae on outer margin.

THORAX. Without allurement organs; all coxae with a stripe of three to five rows of alveoli. Wing length about 2.4 times its width; wing membrane brown-hyaline; alveoli distributed uniformly on wing membrane; subcostal vein short ending beyond the origin of R 4; fork of R 2+3 at the same level as M 1+2 and joining R 4; fork of M 1+2 normally sclerotized; R 5 ending at the wing apex; CuA 2 ending at wing margin.

TERMINALIA ( Fig. 22B–D ). Hypandrium is a distinct band that connects the gonocoxites, stripe-like; gonocoxites cylindrical, shorter than gonostyli, gonostyli digitiform, with rounded apex; gonocoxal apodeme anteriorly projected with rectangular anterior margin; gonocoxal lobes with four setae on each side, spine of the gonocoxal lobes present; aedeagus digitiform and curved, evenly narrowing towards the apex, apex pointed, ending beyond the apex of the paramere, paramere digitiform, rounded at apex; ejaculatory apodeme with anterior margin rounded, shorter than the length of the aedeagus; epandrium plate-like, square and resembling an inverted U ( Fig. 22C ); hypoproct elongated, almost thumb-like, about three times as long as wide, and covered in small setulae, epiproct shorter than hypoproct, about as wide as long; surstyli conical, tapering towards the apex and curved ventrally, with three close-together apical tenacula, tenacula with rounded apex, with additional 4 spiniform projections in-between the tenacula ( Fig. 22B–D ).

Distribution

Only known from the type locality in Colombia ( Fig. 1 ).

DNA barcodes

No specimens were available for DNA extraction.

Figures

Fig. 1. Species distribution map. Species dots do not represent the actual localities; jitter was added for visualization as the species’ real distributions overlap.

Fig. 22. Bryopharsos tetracanthus Jaume-Schinkel sp. nov., holotype, ♂ (LACM-ENT-279397). A. Head. B. Terminalia (ventral view). C. Epandrium and surstyli. D. Terminalia (ventral view). Abbreviations: aed = aedeagus; eja = ejaculatory apodeme; gns = gonostylus; gnx = gonocoxite; gnx lb = gonocoxal lobes; gnx sp = spine of gonocoxal lobe; par = paramere; surs = surstyli; ten = tenacula. All scale bars are in millimeters.