Polytrichophora reginae Mathis

Mathis, Wayne N. & Zatwarnicki, Tadeusz, 2012, A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae), ZooKeys 231, pp. 1-116 : 67-72

Polytrichophora reginae Mathis Figs 119123

Polytrichophora reginae Mathis 1997: 39.

Diagnosis.

This species is distinguished from congeners by the following combination of characters: Small to moderately small shore flies, body length 1.70-2.40 mm.

Head: Frons dull, heavily microtomentose, 2-toned, mostly tan with some faint golden reflections on posterior 2/3, anterior 1/3 (from level of fronto-orbital setae anteriad), gray. Antenna mostly yellow to yellowish orange, anterior portion of pedicel and basodorsal area of basal flagellomere with some blackish coloration; arista with 5 dorsal rays. Face at narrowest point about equal to combined length of pedicel and basal flagellomere; face densely microtomentose, microtomentum with shiny to pearly luster, mostly white but with considerable gold coloration in antennal grooves and extended laterally onto parafacial; parafacial not markedly differing from middle of face in color, more golden dorsally, becoming whiter ventrally; parafacial with slight to considerable ventral dilation; parafacial 2-3 times wider ventrally than dorsally; gena relatively short, less than 1/4 eye height; gena-to-eye ratio 0.12-0.14.

Thorax: Mesonotum mostly dull, densely microtomentose, concolorous with posterior 2/3 of frons; pleural area blackish gray. Anterior margin of wing lacking spine-like setae; costal vein ratio 0.36-0.43; M vein ratio 0.56-0.62. Forefemur lacking row of 9-10 short, stout setae along apical half of anteroventral surface; forefemur with a row of 7-9, well-developed, evenly spaced posteroventral setae, each equal to width of femur; tibiae mostly yellowish; basal tarsomeres yellow, apical 1-2 brown.

Abdomen: Tergites 1-4 bicolored, subshiny to dull, dark gray medially, gray lateroventrally; tergites 3-4 of male subequal in length, tergite 4 not unusually longer, tergite 3 not produced ventrolaterally; dorsum of tergite 5 of male not darker than preceding tergites and usually with distinct, semicircular, grayish areas laterally; tergite 5 of male in dorsal view blunt, truncate, bearing row of 6-10, distinctly larger setae along extreme posterior margin with posterodorsal orientation; tergite 5 of male also gray on posterior 1/2-1/3; sternites 3-4 of male with dense row of setulae along posterior margin; sternite 5 as 2 subtriangular sternites. Male terminalia (Fig s 119-122): Epandrium not connected dorsally above cerci, in posterior view (Fig. 119) tapered ventrally to an acutely pointed apex under which lies cordate-shaped, laterally flanged anterior margin (Fig. 119); epandrium in lateral view (Fig. 120) slightly curved anteroventrally, pointed apically, and with subapical ledge that also ends ventrally in a point, bearing large, subapical setae laterally (Figs 119-120); gonite in lateral view rod-like, shallowly curved (Fig. 122); aedeagus in lateral view (Fig. 122) shallowly sinuous, bifurcate apically, anterior process sclerotized, posterior process longer, wider, membranous, apex complicated with gill-like folds laterally, apex slender, recurved anterodorsally giving appearance of rounded apex; phallapodeme with extended flange fan-like (Fig. 122); hypandrium in lateral view sinuous (Fig. 122), in posterior view deeply Y-shaped.

Type material.

The holotype male is labeled "BELIZE.StannCreek Dist: Wee Wee Cay, 6-9 November 1987[,] W.N. and D. Mathis/HOLOTYPE Polytrichophora reginae ♂ W. N.Mathis USNM [species name and gender handwritten, red]." The holotype is double mounted (minuten pin in a block of plastic), is in excellent condition, and is deposited in the USNM. The allotype female and 15 paratypes (3♂, 12♀; USNM) bear the same label data as the holotype. A female paratype is from the same district in Belize as follows: Twin Cays (Aanderaa Flats), Nov 1987, W. N. and D. Mathis (1♀; USNM). Other paratypes are as follows: PERU. Cuzco: Paucartambo, Atalaya ( Río Alto Madre de Dios; 12°53.1'S, 71°21.6'W; 600 m), 4 Sep 1988, W. N. Mathis (2♂; USNM). Huánuco: Huánaco (10 km N), Rio Huallaga, 4 Feb 1984, W. N. Mathis (2♂, 1♀; USNM). Madre de Dios: Río Manu, Cocha Salvador (11°59.9'S, 71°13.9'W 300m), 14 Sep 1988, W. N. Mathis (1♂, 1♀; USNM); Diamante ( Río Alto Madre de Dios; 12°19.9'S, 70°57.5'W; 400 m), 7 Sep 1988, W. N. Mathis (2♂, 1 ♀; USNM); Quebrada Romero (near; Rio Manu; 12°07'S, 70°58'W), 8 Sep 1988, W. N. Mathis (1♀; USNM); Río Manu, Pakitza (11°56.6'S, 71°16.9'W; 250 m), 9-23 Sep 1988, W. N. Mathis (4♂, 4♀; USNM).

West Indies. ST. LUCIA. Marquis (1.5 km S, 14°01'N, 60°55'W), 17 Jun 1992, W. N. and D. Mathis (2♂, 3♀; USNM).

Type locality.

Belize. Stann Creek: Wee Wee Cay (16°45.9'N, 88°08.6'W).

Other specimens examined.

Neotropical. ARGENTINA. Tucumán: Río Colorado (27°09'S, 65°21.4'W), 17 Jan 1948, R. Golbach (1♀; USNM).

BOLIVIA. El Beni: Huachi, Sep, W.M. Mann (1♂, 1♀; USNM); Rosario Lake, Rogagua, 28 Oct-9 Nov 1921, W.M. Mann (1♀; USNM). La Paz: Guanay (3 km E; 15°30.2'S, 67°52.3'W; 500 m), 14 Mar 2001, W. N. Mathis (15♂, 8♀; USNM); Mapiri (Rio Mapiri; 15°18.6'S, 68°13'W; 720 m), 17 Mar 2001, W. N. Mathis (1♂, 2♀; USNM); Puente Villa (2 km E; 16°24'S, 67°38'W; 1960 m), 11 Mar 2001, W. N. Mathis (2♂; USNM); San Pedro (3 km NE; 16°S, 67°35.3'W; 780 m), 12 Mar 2001, W. N. Mathis (5♂, 7♀; USNM); Tajlihui (15°40.8'S, 67°41.7'W; 590 m), 12 Mar 2001, W. N. Mathis (1♂; USNM).

BRAZIL. Paraná. Morretes (25°28'S, 48°59.1'W), 29 Aug 2000, D. and W. N. Mathis (1♂; USNM); Parque Igauçu (25°33.4'S, 49°13.6'W; 880 m), 12 Apr 2010, D. and W. N. Mathis (4♀; DZUP, USNM). São Paulo. Ubatuba, Praia do Estaleiro (23°20.5'S, 44°53'W; beach), 29 Mar 2010, D. and W. N. Mathis (2♀; DZUP, USNM); Ubatuba, Praia Puruba (23°21'S, 44°55.6'W; beach), 29 Mar 2010, D. and W. N. Mathis (5♂; USNM).

COSTA RICA. Cartago: La Suiza (9°51.5'N, 83°37.5'W), 28 Jun 2001, W. N. Mathis (1♂; USNM). Guanacaste: Liberia (10°37.8'N, 85°26.4'W), 27 Mar 1987, J. M. Hill (1♀; USNM); Santa Cruz (14 km S; 10°10.4'N, 85°35.7'W; 180 m), 23 Jun 2001, D. and W. N. Mathis (8♂, 2♀; USNM). Heredia: Santo Domingo (Parque INBIO; 9°59'N, 85°06'W), 23 Jun 2001, D. and W. N. Mathis (1♀; USNM).

DOMINICAN REPUBLIC. Barahona: Baoruco (18°04.6'N, 71°05.5'W; beach and river), 19 May 1998, D. and W. N. Mathis (1♀; USNM). Hato Mayor: Hato Mayor (5.5 km E; 18°46.4'N, 69°12.5'W), 26 May 1998, D. and W. N. Mathis (1♂; USNM). La Vega: Constanza (ca. 14 km SE; 18°51.4'N, 70°41.2'W; 1505 m), 15 May 1998, D. and W. N. Mathis (1♂; USNM); El Rio (9.5 km E; 19°0.9'N, 70°33.5'W; 980 m), 6 May 1995, W. N. Mathis (1♂; USNM); Jarabacoa (1-2 km S; 19°06.9'N, 70°37'W; 520 m), 8-21 May 1995, 1998, D. and W. N. Mathis (15♂, 15♀; USNM); Rio Camu (3.5 km NW La Vega; 19°13.7'N, 70°35.2'W; 100 m), 10 May 1995, 1998, D. and W. N. Mathis (16♂, 2♀; USNM); Salto Baiguate (near Jarabacoa; 19°05.5'N, 70°36.9'W; 570 m), 9-16 May 1995, 1998, D. and W. N. Mathis (2♂, 5♀; USNM). Peravia: Rio Ocoa (San José Ocoa; 18°31.7'N, 70°30.4'W), 21 May 1998, D. and W. N. Mathis (1♀; USNM). Puerto Plata: Rio Camu (14 km E Puerto Plata; 19°41.9'N, 70°37.5'W), 23 May 1998, D. and W. N. Mathis (10♂; USNM).

ECUADOR. El Oro: Pasaje (6 km E; 3°18.1'S, 79°47.1'W), 13 Jan 1978, W. N. Mathis (1♂, 6♀; USNM). Guayas: Gala (3°0.7'S, 79°44.3'W), Dec 1955, J. R. Levi-Castillo (5♀; USNM). Loja: Catamayo (3°59'S, 79°21'W), Dec 1955, J. R. Levi-Cast illo (4♂, 1♀; USNM). Manabí: Pichincha (0°08.8'S, 78°28.5'W), Aug 1955, J. R. Levi-Castillo (6♀; USNM). Puerto Orellana: Rio Tiputini Biodiversity Station (0°38.2'S, 76°8.9'W), 12-26 Aug 1999, A. Baptista, M. Kotrba, W. N. Mathis (10♂, 3♀; USNM).

EL SALVADOR. Acajutla (13°35.4'N, 89°49.8'W), Dec 1953, W. B. Heed (2♀; USNM).

GRENADA. St. Andrew: Balthazar (12°07.7'N, 61°39.3'W), 19 Sep 1996, W. N. Mathis (1♂; USNM). St. John: Palmiste Lake (12°08.3'N, 61°44'W), 19 Sep 1996, W. N. Mathis (1♂; USNM).

GUYANA. Kaieteur Falls (5°10.5'N, 59°28.9'W), 21-24 Aug 1997, W. N. Mathis (1♀; USNM); Karanambo (Rupununi River; 3°45.1'N, 59°18.6'W; 85m), 1-3 Dec 2010, W. N. Mathis (2♂, 1♀; USNM); Pirara Ranch and River (03°32.1'N, 59°40.5'W), 24-25 Apr 1995, W. N. Mathis (1♀; USNM); Takutu Mountains (6°15'N, 59°05'W), 17 Dec 1983, P. J. Spangler, W. E. Steiner (1♀; USNM).

HONDURAS. Cortés: Omoa (15°47.8'N, 87°58.4'W), 26 Sep 1995, D. and W. N. Mathis (1♀; USNM); San Pedro Sula (8 km S; 15°25.7'N, 88°01.4'W), 25-26 Sep 1995, D. and W. N. Mathis (3♂, 1♀; USNM).

JAMAICA. Clanendon: Grantham (18°09.3'N, 77°23.8'W; 340 m), 16 Apr 2000, W. N. Mathis (1♀; USNM). Manchester: near Mandeville (18°03.5'N, 77°31.9'W), 15-18 Apr 2000, W. N. Mathis (1♂; USNM). Portland: Berridale (18°06.5'N, 76°20'W), Rio Grande River, 25 Apr 2000, W. N. Mathis (2♀; USNM). St. Andrew: Mavis Bank (4.3 km SE; 18°01.4'N, 76°38.1'W; 480 m); Yallahs River, 22-23 Apr 2000, W. N. Mathis (1♂, 1♀; USNM); Wag Water River, 25 Feb 1969, W. W. Wirth (1♀; USNM)l. St. Thomas: Mt. Lebanus (17°58.2'N, 76°32.7'W), 16 May 1996, D. and W. N. Mathis, H. B. Williams (1♀; USNM).

MEXICO. Chiapas: Finca Esperanza (26°38'N, 103°28'W), 26 Aug 1956, R. Nettel F. (1♂; USNM); Puente Mezcalapa (17°21.9'N, 93°23.5'W; light trap), 22 May 1964, F. S. Blanton (7♂, 5♀; USNM). San Luis Potosi: Tamazunchale (21°15.3'N, 98°47.3'W), 23 Nov 1946, F. E. Skinner (1♂, 1♀; USNM). Veracruz-Llave: Fortín de las Flores (18°54'N, 97°0'W; light trap), Jun 1964, F. S. Blanton (3♂; USNM).

NICARAGUA. León: La Cruz de la India (5 km SW, on highway 26; 12°43.2'N, 86°19.8'W; 215 m), 22 Jun 2007, W. E. Woodley (2♂, 5♀; USNM).

PANAMA. Panama: Canal Zone, Gamboa, Pipeline Road (9°07'N, 79°42'W), Jul 1967, W. W. Wirth (1♂; USNM); Canal Zone, Pedro Miguel (9°01.1'N, 79°36.7'W), R. C. Shannon (1♂; USNM); Tocúmen (9°05.2'N, 79°23.1'W), 13 Feb 1953, F. S. Blanton (1♂; USNM).

PERU. Huánuco: Tingo Maria (1 km S; 9°18.5'S, 76°0.3'W), 6 Feb 1984, W. N. Mathis (3♀; USNM). Madre de Dios: Río Manu, Erika (near Salvación; 12°50.7'S, 71°23.3'W; 550 m), 5-6 Sep 1988, W. N. Mathis (1♂, 2♀; USNM).

PUERTO RICO. Adjuntas (18°09.8'N, 66°43.2'W), 22 Sep 1995, D. and W. N. Mathis (4♂, 1♀; USNM). Maricao (18°11.1'N, 66°58.9'W), 21 Sep 1995, D. and W. N. Mathis (4♂, 1♀; USNM). Maricao (4 km WNW; 18°10.7'N, 66°59.6'W), 21 Sep 1995, D. and W. N. Mathis (1♂; USNM). Playa de Guayanilla (18°0.4'N, 66°46.1'W), 19 Sep 1995, D. and W. N. Mathis (1♂; USNM). Rio Hoconuco (18°7.6'N, 67°2.6'W), 20 Sep 1995, D. and W. N. Mathis (3♂, 1♀; USNM).

ST. VINCENT. St. David: Richmond Beach (13°18'N, 61°14'W), 28 Mar 1989, W. N. Mathis (1♂; USNM).

TRINIDAD AND TOBAGO. Trinidad. St. Andrew: Valencia (1 km W; 10°39'N, 61°13'W), Aripo River, 20 Jun 1993, W. N. Mathis (4♂, 2♀; USNM). St. George: Arima (8 km N; 10°41'N, 61°18'W), Verdant Vale, 19 Jun 1993, W. N. Mathis (2♂; USNM). Tobago. St. John: Bloody Bay River (11°18'N, 60°38'W), 14 Jun 1993, W. N. Mathis (1♂, 3♀; USNM); Charlotteville (5 km S; 11°18.9'N, 60°34.5'W), Hermitage River and beach, 10 Jun 1993, W. N. Mathis (2♀; USNM); Kings Bay Reservoir (11°17'N, 60°33'W), 15 Jun 1993, W. N. Mathis (5♂, 5♀; USNM); Parlatuvier (creek; 11°17.9'N, 60°35'W), 20 Apr 1994, W. N. Mathis (1♂; USNM); Speyside (Doctor River; 1 km NW; 11°18'N, 60°32'W), 12-13 Jun 1993, W. N. Mathis (1♂, 2♀; USNM). St. Paul: Delaford, Kings Bay (11°16'N, 60°32.8'W), 13 Jun 1993, W. N. Mathis (1♀; USNM).

Distribution

(Fig. 123). Neotropical: Argentina ( Tucumán), Belize, Bolivia (El Beni, La Paz), Brazil ( Paraná, São Paulo), Costa Rica (Cartago, Guanacaste, Heredia), Ecuador (El Oro, Guayas, Loja, Manabí, Puerto Orellana), El Salvador, Guyana, Honduras, Mexico (Chiapas, San Luis Potosi, Veracruz-Llave), Nicaragua, Panama, Peru ( Huánuco, Madre de Dios), Trinidad and Tobago, West Indies (Dominican Republic, Grenada, Jamaica, Puerto Rico, St. Lucia, St. Vincent).

Remarks.

This species is distinguished from Polytrichophora prolata in having a smaller body (body length of 2.40 mm or smaller). In addition, male tergites one through four are bicolored (mostly blackish brown dorsally in contrast with the lateroventral surface being gray), male tergite five is truncate and is gray on the posterior one-third, and male sternites three and four have a dense patch of setulae along the posterior margin. Structures of the male terminalia (Figs 119-122) are unique within the genus in having the ventral margin pointedly rounded, without two apical processes.