(FIGS 25G, 30D, 31, 32I–L, 33A)

Heraeus concolor Slater & Baranowski, 1994: 493–494; Slater & O’Donnell, 1995: 147; Baranowski & Slater, 2005: 137.

Diagnosis

Small species, total length less than 5 mm. Pedicel with abundant erect setae, equal to or longer than diameter of segment. Distiflagellomere with a pale band. Labium extending to metacoxae. Membrane with an apical pale spot. Metafemur darker on apical one-quarter.

P. M. DELLAPÉ ET AL. 89

Heraeus concolor is similar in external appearance to H. pulchellus. Both are small species with a long labium extending to or near metacoxae; H. concolor can be differentiated by the dark-brown distiflagellomere with a conspicuous pale sub-basal band, whereas in H. pulchellus it is uniformly dark brown. These two species are known from the West Indies, and probably derived from ancestral stock related to H. plebejus that reached the islands from Florida (USA).

Description (Fig. 25G)

Head: Coriaceous. Eyes not surpassing the dorsal margin of head in lateral view. Ocelli placed at level of an imaginary line passing the posterior border of eyes. Labium extending to metacoxae. Distiflagellomere with a pale band. Pedicel with abundant erect setae, equal to or longer than diameter of segment.

Thorax: Posterior pronotal lobe with pale spots and a pale spot on humeral angles. Anterior pronotal lobe with long erect setae. Evaporative area extended. Scutellum with erect setae. Inner corial spot diffuse. Costal margin pale on proximal three-quarters. Corium with a subapical corial spot. Membrane with an apical pale spot, veins pale. Profemur dark, at most with apex paler, meso- and metafemur darker apically (Fig. 33A); setae on profemur long and erect; protibia and mesofemur without spines.

Abdomen, male genitalia: Pygophore (Fig. 32I, J) rounded, anterior margin of dorsal aperture rounded. Parameres: Figure 32 (K, L). Aedeagus (Fig. 30D): conjunctiva with a few minute spines laterally, vesica with lobes weakly sclerotized and spined apically; processus gonopori long and slender.

Distribution

Antigua, Dominican Republic, Jamaica, Nevis, and Saba; Haiti (NEW RECORD) (Fig. 31).

Type material examined

Holotype ♀, DOMINICAN REPUBLIC, Bayaguana, 4-IX-[19]91, BL Trap, D. Brown, Holotype Heraeus concolor J. A. Slater and R. M. Baranowski (USNM).

Additional material studied

ANTIGUA: 1♀, Christian Valley, 14-X-1961, blacklight trap, FAO Insect Survey, Baranowski (USNM).

DOMINICAN REPUBLIC: 1♂, Finca Goya, 5-IV- [19]89, Bl trap, G. Anzerro (USNM); Azua: 1♂, 8 km NE Padre Las Casas, Rio Las Cuevas, 18°46′N, 70°53′W, 580 m a.s.l., 7-VIII-1990, J. Rawlins & S. Thompson (AMNH); Barahona: 1♂, 5 km NW Barahona, Agr. Exp. Sta., B.L.T., 29/30-IV-[19]78, Woodruff, Fairchild & Mercado (USNM); El Seibo: 5♂, 5♀, Pedro Sanchez, 10-VI-6, blacklight trap at shallow stream, R.E. Woodruff; 2♀, 7 km N Pedro Sanchez, Loma de Chivo, 25-VI-[19]98, blacklight trap, R.M. Baranowski & R.E. Woodruff (USNM); 1♀, 20- VI-[19]98, blacklight trap, R.M. Baranowski & R.E. Woodruff (USNM); 1♀, 5000 ft, R.E. Woodruff & P.H. Freytag (USNM); La Altagracia: 2♂, 7♀, one without abdomen, Nisibon, finca ‘ Papagallo’, 17-VI- 1999, blacklight trap, abandoned building, R.E. Woodruff & R.M. Baranowski (USNM); 2♂, 2♀, Nisibon, Papagallo, 26-VI-[19]98, blacklight trap, R.M. Baranowski & R.E. Woodruff (USNM); 1♂, 4♀, Nisibon, 5 mi. W Las Lagunas, 16-VI-1999, blacklight trap, R.E. Woodruff & R.M. Baranowski (USNM); 1♀, 19-VI-1999, abandoned house (USNM); 1♂, 18-VI- 1999 (USNM); 3♂, 1♀, Rio Maimon, near La Guama, 18-VI-[19]98, black light trap, P.H. Freytag & R.E. Woodruff (USNM); 1♀, Rio Maimon, La Laguna, Nisibon, 18-Vi-[19]98, black light trap, R.E. Woodruff (USNM); La Romana: 1♀, Higueral, 15-VIII- [19]77, blacklight trap, R.E. Woodruff & E. Folch (USNM); 1♂, 17-VIII-[19]77, blacklight trap, R.E. Woodruff & E. Folch (USNM); Monseñor Novel: 1♀, Bonao, Jacaranda Hotel, 28-VI-[19]98, blacklight trap, R.M. & R.E. Woodruff (USNM); Monte Plata: 1♀, NE Sierra de la Agua, 1-V-[19]78, blacklight trap, R.E. Woodruff, G. Fairchild & E. Mercado (USNM); Pedernales: 1♀, 19-VI-[19]76, blacklight trap, R.E. Woodruff (AMNH); 1♀, 24 km N Cabo Rojo, 11- VI-[19]98, blacklight trap, P.H. Freytag, B.K. Dezier & R.E. Woodruff (USNM); 1♀, 26 km N Cabo Rojo, 10-VI-[19]98, blacklight trap, P.H. Freytag, B.K. Dezier & R.E. Woodruff (USNM); San Juan: 1♀, 6 km W San Juan, 7-VIII-1979, UV light, O’Brien & Marshall (USNM); San Pedro de Macoris: 1♂, 1♀, 0.8 mi. W Juan Dolio, 22-VI-1998, black light trap, R.M. Baranowski & R.E. Woodruff (USNM).

HAITI: 1♂, III-[19]28, A.J. Poole (USNM).

JAMAICA: 1♂, Parish of St Andrew, 4000 ft, Holywell For. Camp, 18-X-1971, R.M. Baranowski (USNM); 1♀, Parish of St James, 4 mi. E of Montego Bay, Ironshore, 30-V-[19]70, U.V. light trap, E.G. Farnworth (USNM).

NEVIS ISLAND: 1♂, 1♀, Hurricane Cove, 22-VII- [19]91, BL trap, H.V. & R.M. Baranowski (USNM); 1♀, 18-IX-[19]92, B. Brandy (USNM); 3♂, 8-IX- [19]92, B. Brandy (USNM); 1♂, 1♀, Butler Village, 29-IX-[19]92, B.L. trap, B. Brandy (USNM); 1♀, 22- IX-[19]92, B.L. trap, B. Brandy (USNM).

SABA ISLAND: 2♂, 3♀, Mt Scenery, 26-IX-[19]90, H.V. & R.M. Baranowski (USNM); 4♂, 1♀, 19-VIII- [19]92, H.V. & R.M. Baranowski (USNM); 1♂, 20- VII-[19]91, H.V. & R.M. Baranowski (USNM); 1♂, N.A. Booby Hill, 19-IX-[19]93, B.L.T., T. van Oosteren, Baranowski coll. (USNM).