Paragrallomyia nodulosa,

Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70: 57-58

publication ID

https://doi.org/10.11646/zootaxa.4822.1.2

publication LSID

lsid:zoobank.org:pub:F2D5A199-48B1-448A-9B9A-458FBFB5253D

DOI

http://doi.org/10.5281/zenodo.4401246

persistent identifier

http://treatment.plazi.org/id/56339F33-8DEA-4107-84D3-D0E477E5D0C8

taxon LSID

lsid:zoobank.org:act:56339F33-8DEA-4107-84D3-D0E477E5D0C8

treatment provided by

Plazi

scientific name

Paragrallomyia nodulosa
status

new species

Paragrallomyia nodulosa  new species

( Figs. 31–34View FIGURES 31–34)

Description: Body length 6 mm; wing 4 mm. Head and abdomen dark brown, thorax black. Palpus dark brown except for white outer face. Clypeus dark brown with sparse pale microsetulae. First flagellomere dark brown. Fronto-orbital plate dark brown. Row of katepisternal setae brownish. Fore tibia dark brown. Fore tarsus mostly white, tarsomere one brown on basal quarter only. Hind femur mostly dark brown, narrowly white basally and with a small angled preapical white ring. Tergites dark brown. Oviscape mostly black, apex brown.

Head: First flagellomere covered by pale microsetulae. Frontal vitta with a large swollen velvety black spot anterior to ocellar plate ( Fig. 31View FIGURES 31–34). Frontal vitta swollen anterior to ocellar plate. Epicephala merging immediately posterior to ocellar plate. Epicephalon flat, same level as frontal vitta.

Thorax: Mesonotum with lines of thin brownish microsetulae. Anterior half of postpronotal lobe bare. Femur covered with sparse black microsetulae. Mid and hind tibia almost cylindrical, sulcus on outer face weak. Female cervical sclerite brown and smooth, not swollen on posterior end. Cell r 4+5 open at the tip of the wing.

Female abdomen: Single spermathecal duct with an apical rounded swelling. Single spermatheca cylindrical, basally tapered and broadened on apical half with small finger-like appendices ( Fig. 32View FIGURES 31–34). Paired spermathecal duct conspicuously broad apically before splitting into stems. Paired spermathecal duct stems tapered on basal third, swollen on apical half with finger-like processes apically. Paired spermathecae oval, invaginated apically only. Male abdomen: Copulatory fork with small inner basal lobes, less than half as long as the arms, arms long and curved ( Fig. 34View FIGURES 31–34). Ejaculatory apodeme bigger than epandrium and with a broad blade, bigger than sperm pump. Phallapodeme short, not extending to anterior limit of hypandrium. Distiphallus longer than epandrium and phallic bulb somewhat cylindrical, length twice as width. Distal distiphallus short and thin, 1/4 of length and almost half of width of basal distiphallus.

Type material: Holotype: COSTA RICA. Puntarenas, Osa Peninsula 2.5 km S Rincon, ~ 50 m, 8º 42’ 1 N 83º30’50 W, 10–11.VIII.2001, S. A. Marshall (1 ♀, DEBU00168064View Materials, MNCR)GoogleMaps  . Paratypes: BELIZE. Mtn. Pine Ridge, 1000’ Falls area , jungle edge 2500’, 14.I.1991, S. A. Marshall (1 ♀, DEBU)  ; COSTA RICA. Alajuela, Volcan Tenorio, N slope nr. Bijagua Biol. Sta. , 700 m, rain forest, 16–20. VI.2000, S. A. Marshall (2 ♀, DEBU00118469View Materials, DEBU00118491View Materials)  ; Alajuela, Volcan Tenorio, N slope, trail to laguna, 800–900 m, rain forest, 16–20. VI.2000, S. A. Marshall (2 ♀, DEBU00118548View Materials, DEBU00118549View Materials)  ; Heredia, La Virgen , 10 km SE, 10º20’N 84º 05’W, 450–550 m, 1º rainforest transect, 14–15.II.2003, M. Pollet (1 ♂, DEBU00241578View Materials)GoogleMaps  ; Puntarenas, A. C. Osa, Bosque Esquinas, 200 m, V.1994, M. Segura coll. (1 ♀, INBIOCRI001999228, MNCR)  ; Puntarenas, Corcovado Natl. Pk., San Pedrillo , 5-50 m, 8º 42’ 1 N 83º30’50 W, 13.VIII.2001, S. A. Marshall (1 ♀, DEBU00168165View Materials, MNCR)GoogleMaps  ; Puntarenas, Osa Peninsula 2.5 km S Rincon, ~ 50 m, 8º 42’ 1 N 83º30’50 W, 10–11.VIII.2001, S. A. Marshall (10 ♀, 1 ♂, DEBU00168046View Materials, DEBU00168052View Materials, DEBU00168066View Materials, DEBU00168072View Materials, DEBU00168080View Materials, DEBU00168082View Materials, DEBU00168085View Materials, DEBU00168097View Materials, DEBU00168240View Materials, DEBU00168241View Materials, DEBU00205736View Materials)GoogleMaps  ; Puntarenas, Osa Pen. Corcovado Natl. Pk. Est. Agujas above Dos brazos, 500–600 m, 29–30.VIII.1996, Gustafsson, Pape, Viklung colls. (4 ♀, DEBU)  ; San José, San Carlos, Riosparaiso Res., Pecari Stn. 16 km NNE Quepos, 400 m, 9º 33’ 53 N 84º7’32 W, 15.II.2003, S. A. Marshall (2 ♀, 1 ♂, DEBU00205697View Materials, DEBU00205709View Materials, DEBU00205731View Materials)GoogleMaps  ; San José, Guaitil, nr. Bridge over Rio Candelaria , 9º46’19 N 84º12’56 W, 500 m, 12.IV.2006, S. A. Marshall (1 ♀, DEBU00260115View Materials)GoogleMaps  ; San José, San Carlos, Riosparaiso Res., Pecari Stn. 16 km NNE Quepos, 400 m, 9º 33’ 53 N 84º7’32 W, 26.II.2006, S. A. Marshall (1 ♀, DEBU00206727View Materials)GoogleMaps  ; San José, San Carlos, Riosparaiso Res., Pecari Stn. 16 km NNE Quepos, 400 m, 9º 33’ 53N 84º7’32 W, 15.II.2003, S. A. Marshall (1 ♂, DEBU00205708View Materials)GoogleMaps  .

Distribution: Belize, Costa Rica.

Etymology: The specific name refers to the swollen dark spot anterior to the ocellar plate.

Comments: Paragrallomyia nodulosa  is distinctive for the swollen black velvety spot anterior to the ocellar plate. The long and slightly curved arms of the copulatory fork and the single spermatheca with finger-like processes are also unusual.

MNCR

Museo Nacional de Costa Rica

DEBU

Ontario Insect Collection, University of Guelph

VI

Mykotektet, National Veterinary Institute

V

Royal British Columbia Museum - Herbarium