Bichromomyia olmeca olmeca (Vargas & Díaz-Nájera, 1959)

Phlebotomus olmecus Vargas & Díaz-Nájera, 1959: 147 (♂, the ♀ correspond to Bi. ylephiletor). Type locality: Mexico, Tabasco, Teapa.

Phlebotomus (Psychodopygus) apicalis Lewis & Garnham, 1959: 89 (♂, ♀, not Phlebotomus apicalis Floch & Abonnenc = flaviscutellatus Mangabeira). Type locality: Belize.

Phlebotomus flaviscutellatus Mangabeira: Biagi et al., 1965: 267 (vector of Leishmania in Mexico); Biagi, 1966: 370 (key).

Psychodopygus (Trichophoromyia) olmecus (Vargas & Díaz-Nájera): Forattini, 1971: 105; Forattini, 1973: 434.

Lutzomyia (Nyssomyia) olmeca olmeca (Vargas & Díaz-Nájera): Young & Duncan, 1994: 452 (complete references, taxonomy, distribution); Ibáñez-Bernal, 2002: 172 (diagnosis, Mexican records); Rebollar-Téllez et al., 2004: 285 (Campeche records); Rebollar-Téllez et al., 2005: 197 (Campeche abundance data); Rebollar-Téllez et al., 2006: 23 (Yucatán records), Pech-May et al., 2010: 150 (Campeche infection rates), Sánchez-García et al. 2010: 457 (Quintana Roo infection rates); May-Uc et al., 2011: 279 (Quintana Roo records).

Bichromomyia olmeca olmeca (Vargas & Díaz-Nájera): Galati, 2003: 44, 118, 119 (list, keys); Ibáñez-Bernal et al., 2011: 36 (Veracruz records).

Diagnosis. Head longer than wide; mesonotum bicolored, anterior half of scutum and pronotum dark pigmented, posterior half and scutellum pale. Male: palpus segment 5 about as long as 3; lateral lobe as long as gonocoxite; gonocoxite without setae tuft; gonostylus with the two basal spiniform setae at same level, one preapical and one apical; paramere simple and straight; ejaculatory filaments longer than 2.8X the length of aedeagal apodeme + pump; Female: interocular distance similar to clypeus width; cibarium with 8 to 12 horizontal teeth; steam of furca with broad blade-like steam; individual spermathecal ducts shorter than spermatheca, but longer than one-half its length; common spermathecal duct about 2.5 times the length of spermatheca; spermatheca with short and broad oval capitulum and about 12 or 13 distinct annuli (Young & Duncan 1994; Galati 2003).

Material examined. MEXICO: CHIAPAS: Guadalupe Miramar: 18-iii-2010, 1 ♀; 08-ii-2011, 1 ♀; 10-ii-2011, 1 ♀. Loma Bonita: 15-i-2010, 2 ♀; 19-ii-2010, 2 ♂; 20-iii-2010, 1 ♀; 21-iii-2010, 1 ♀; 19-xi-2010, 1 ♂. Collected with CDC light traps.

Distribution. MEXICO (Campeche, Chiapas, Oaxaca, Quintana Roo, Tabasco, Veracruz, Yucatán) (Ibáñez- Bernal 2002), BELIZE, GUATEMALA, HONDURAS, NICARAGUA, COSTA RICA (Young & Duncan 1994; Galati 2003).

Remarks. This species was not abundant but is present in the area studied. It is an anthropophilic species and has been demonstrated as a competent vector of Leishmania mexicana to humans (Biagi et al. 1965). Further studies have confirmed the role of this species as a vector of Leishmania mexicana in the Mexican states of Campeche (Pech-May et al. 2010) and Quintana Roo (Sánchez-García et al. 2010).