Bryopharsos insperatum 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 : 29-32

Bryopharsos insperatum Jaume-Schinkel sp. nov.

urn:lsid:zoobank.org:act:EE933B1F-738A-48DE-9693-4129341979F4

Figs 1 , 15–16

Diagnosis

Male

Eye bridge with four facet rows ( Fig. 15A ); wing 2.2 times as long as wide; ejaculatory apodeme cylindrical and hour-glass-shaped ( Fig. 15B ), about the same length as the aedeagus; gonocoxal apodeme fused; surstyli with one tenaculum ( Figs 15C–D , 16B ); aedeagus digitiform, out curved and evenly tapering towards apex ( Fig. 16 A ). This species shares the same number of apical tenaculum in the surstyli (one apical tenaculum) with B. uncinatum and B. paulistensis . Still, it can be easily differentiated by the number of rows of facets in the eye bridge (three in B. insperatum sp nov., four in B. uncinatum , and five in B. paulistensis ).

Female

Unknown.

Etymology

The specific name ʻ insperatum ʼ derives from the Latin word ʻ insperatus ʼ (neuter ʻ insperatum ʼ), meaning unexpected, referring to unexpectedly finding a new species while looking in the collections. Name to be treated as an adjective.

Type material

Holotype

COSTA RICA – Heredia • ♂; Limon Rs. Biol. Hitoy Cerere, Rio Cerrere , sidestream; 9.806667° N, 83.0175° E; alt. 100–200 m; 17–26 Feb. 1999; L.W. Quate leg.; Malaise trap; LACM, INBIO CRI001473066 .

Description

MEASUREMENTS. In mm (n = 1). Wing length: 2.87, wing width: 1.29; head length: 0.52, head width: 0.61; antennal segments: scape: 0.14, pedicel: 0.09, flagellomere 1: 0.18, flagellomeres 2–12: 0.20; palpal segment 1: 0.07, palpal segment 2: 0.10, palpal segment 3: 0.10, palpal segment 4: 0.20.

Holotype male

HEAD ( Fig. 15A ). 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, triangular with lower margin straight. Antennal scape about two times the length of the pedicel, cylindrical; pedicel spherical, smaller than 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 12; ascoids rectangular and broad, about the same length, and about two times as wide as flagellomere carrying them. Palpal segments cylindrical, palpal segment 4 apically pointed, with bilobed apex, palpal proportions: 1.0:1.4:1.4:2.8; 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 2.2 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 basal to the level of M 1+2 and joining R 4; fork of M 1+2 weakly sclerotized, almost appears as it is not joining; R 5 ending at the wing apex; CuA 2 ending at wing margin.

TERMINALIA ( Figs 15B–D , 16 ). Hypandrium is a distinct band that connects the gonocoxites, plate-like; gonocoxites cylindrical, longer than gonostyli, gonostyli conical, with rounded-blunt apex; gonocoxal apodeme not anteriorly projected; gonocoxal lobes posteriorly projected on each side, each lobe with five setae; aedeagus digitiform and out curved, evenly narrowing towards the apex, apex rounded, and ending beyond the apex of the paramere, paramere digitiform ( Fig. 16A ), broader than aedeagus, with apex rounded; ejaculatory apodeme with anterior margin round ( Fig. 16A ), about the same length of the aedeagus; epandrium not discernable in examined material, but appears U-shaped; hypoproct tongue-shaped ( Fig. 15D ), and covered in small setulae, epiproct shorter than hypoproct; surstyli conical, slightly tapering towards the apex and curved ventrally, with one apical tenaculum, tenaculum with rounded apex.

Distribution

Only known from the type locality in Costa Rica ( 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. 15. Bryopharsos insperatum Jaume-Schinkel sp. nov., holotype, ♂ (LACM, INBIO CRI001473066). A. Head. B. Terminalia (ventral view). C. Surstylus. D. Surstylus (ventral view). Abbreviations: aed = aedeagus; eja = ejaculatory apodeme; gns = gonostylus; gnx = gonocoxite; gnx lb = gonocoxal lobes; par = paramere, surs = surstyli; ten = tenacula. All scale bars are in millimeters.

Fig. 16. Bryopharsos insperatum Jaume-Schinkel sp. nov., holotype, ♂ (LACM, INBIO CRI001473066). A. Terminalia (ventral view). B. Surstyli. Abbreviations: aed = aedeagus; eja = ejaculatory apodeme; gns = gonostylus; gnx = gonocoxite; gnx lb = gonocoxal lobes; par = paramere; surs = surstyli; ten = tenacula. All scale bars are in millimeters.