Pseudosympycnus rafaeli, Soares & Ale-Rocha, 2022

Soares, Matheus Mickael Mota & Ale-Rocha, Rosaly, 2022, Three new species of Pseudosympycnus (Diptera, Dolichopodidae) from Peru and an updated key to the species, Revista Brasileira de Entomologia (e 20220005) 66 (1), pp. 1-10 : 8-9

publication ID	https://doi.org/ 10.1590/1806-9665-RBENT-2022-0005
publication LSID	lsid:zoobank.org:pub:46C154A4-616D-4324-AFEE-84C8F95E945A
persistent identifier	https://treatment.plazi.org/id/14051400-C30E-4912-B909-2B001341AE01
taxon LSID	lsid:zoobank.org:act:14051400-C30E-4912-B909-2B001341AE01
treatment provided by	Felipe
scientific name	Pseudosympycnus rafaeli
status	sp. nov.

Treatment

Pseudosympycnus rafaeli sp. nov.

urn:lsid:zoobank.org:act:14051400-C30E-4912-B909-2B001341AE01

( Figs. 1D View Figure 1 , 2E–F View Figure 2 , 3E–F View Figure 3 , 4D View Figure 4 , 5E–F View Figure 5 )

Diagnosis (male). Metepimeron yellow ( Fig. 1D View Figure 1 ). Femora yellow, except apex of femur III brown ( Figs. 1D View Figure 1 , 4D View Figure 4 ). Femur III with ventral row of strong setae abruptly decreasing in length from base to apical 5/8 ( Fig. 4D View Figure 4 ). Tarsus I ( Fig. 3E View Figure 3 ): brown, It 1 7 times longer than It 2, without modified setation; It 2 with 3 long setae at apex, the 2 posteriormost as long as segment, and with anterior row of curved setae; It 3–4 laterally flattened with anterior surface mostly bare. Tarsus II unmodified. Tarsus III ( Fig. 3F View Figure 3 ): IIIt 3 with 3 curved setae, as long as segment. IIIt 4–5 unmodified.

Description. Male ( Fig. 1D View Figure 1 ). Body length [holotype]: 2.7 mm. Wing length: 3.1 mm, width: 1 mm. Head ( Figs. 2E–F View Figure 2 ). Similar to P. pennipes sp. nov., except for: face ground color brown; frons dark green, with weak blue-purple reflections. Palpus thin, ovoid, 1.6 times longer than wide, 1/3 as long as eye height, ground color yellow, with dense silvery pruinosity, covered with few pale setae and 1 black seta near apex at posterior margin. Thorax. Similar to P. pennipes sp. nov., except for: scutellum mostly metallic green with weak bluish reflections; fifth pair of dorsocentrals slightly offset laterally; pleura pale brown, with weak greenish reflections. Legs ( Figs. 1D View Figure 1 , 3E–F View Figure 3 , 4D View Figure 4 ). Mostly yellow, except coxae I and II, tibia I and tarsus I, leg II from apex of tibia, leg III from apex of femur brownish. Leg I. Podomere ratios: 30/30/21/3/7/8/5. Anterior surface of coxa I covered by short black setae, with 3–4 long black setae on anterior apical edge, outer edge with 1 long black seta at apex. Femur I with short vestiture oft black setae, ventral surface mostly bare, with row of ventral subequally long and slender setae (MSSC). Tibia I not thickened, with 2 posterior setae at 4.5/8 and 6/8. Tarsus I ( Fig. 3E View Figure 3 ): It 1 7 times longer than It 2, without modified setae; It 2 with 3 long setae at apex, the 2 posteriormost setae as long as segment, and with anterior row of curved setae; It 3–4 laterally flattened with anterior surface mostly bare (all MSSC). Leg II. Podomere ratios: 34/47/30/10/10/6/3. Coxa II with row of short pale setae on outer margin of anterior surface, ending in 1 much longer black seta near apex. Femur II covered with vestiture of short black setae, except basal part of posterior surface and entire ventral surface mostly bare, with anteroventral row of slender pale setae decreasing in length from basal 1/8 to basal 3/8, with 1 anterior and 1 posterior pre-apical setae. Tibia II with 1 anterior seta at 6.5/8, 4 anterodorsal setae at 1/8, 2.5/8, 5/8 and 8/8, 3 posterodorsal setae at 1/8, 3.5/8 and 8/8, 3 ventral setae at 3/8, 5/8 and 6/8, 1 antero- and 1 posteroventral setae at apex. IIt 1 with 4 ventral short setae at 2/8, 4.5/8, 6/8 and 8/8. Leg III. Podomere ratios: 40/54/5/12/5/9/4. Coxa III with 1 large seta, as long as coxa, at basal 1/3 and 1 smaller seta near apex. Femur III ( Fig. 4D View Figure 4 ) with ventral row of strong setae abruptly decreasing in length from base to apical 5/8, with 1 anterior preapical seta. Tibia III with 5 anterior setae at 1/8, 2/8, 3/8, 5/8 and 8/8, with dorsal row of more conspicuous setae from 2/8 to apex, and with group of short ventral fine pale hairs at apex (MSSC). Tarsus III ( Fig. 3F View Figure 3 ): IIIt 1 with 1 anterior strong seta at apex. IIIt 2 with 2 posterior setae at apex.IIIt 3 with 3 curved setae, as long as segment. IIIt 4–5 unmodified. Wing. Similar to P. pennipes sp. nov. including the “CuAx ratio” (see above). Abdomen. Setation and general color pattern similar to P. pennipes sp. nov., except for: mostly brown, except tergites 1 and 2 laterally yellow, sternites 1 and 2 yellow. Hypopygium ( Figs. 5E–F View Figure 5 ). Similar to P. pennipes sp. nov. except as noted: ventral lobe of surstylus wide, rounded at apex, with 4 long setae at ventral edge and few short setae at dorsal edge and apex; dorsal lobe of surstylus long, triangular, slightly narrow than ventral lobe; cercus as long as ventral lobe of surstylus, slightly narrowing at apex; epandrial lobe short, with 1 long seta at apex; phallus: basal part narrow, u-shaped ventrally, with 1 long and strong medial projection; postgonites wide and cap-like at apex.

Female. Unknown.

Type material. HOLOTYPE ♂, labelled: “ Peru: Cusco, Quincemil / Rio Araza , 13º21′18″S / 70º53′22″W / 1000 m “ 22.viii.2012, Malaise / J.A. Rafael, R.R. Cavichioli / & D.M. Takiya ” “ HOLOTYPE / Pseudosympycnus rafaeli / Soares & Ale-Rocha [red label]” ( MUSM) GoogleMaps . Holotype in good condition (terminalia not dissected), left mid leg broken off. PARATYPES: same data as holotype (1 ♂, INPA, with detached genitalia stored in microvial with glycerin) GoogleMaps .

Etymology. Named after José Albertino Rafael,Brazilian dipterologist who contributed substantially to the knowledge of Neotropical Diptera and collected the type material.

Remarks. Pseudosympycnus rafaeli sp. nov. differs from all species of genus by the simple setae and absence of conspicuous modifications on tarsus I: It 1 long, 7x longer than It 2, It 2 with 3 long dorsal setae at apex and It 3–4 laterally flattened and the dorsal lobe of surstylus long, triangular, slightly narrow than ventral lobe.

Distribution. Peru (Department of Cusco).