404 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io9 



junction with the arch poorly sclerotized. Parameres each with large 

 basal knob, stem slender and gradually curved near base, broadened 

 and bowed ventrally in distal portion forming a very low ventral swell- 

 ing, the slender distal portion very abruptly bent and twisted before 

 turning ventrad and ending in a fine point bearing several fine sub- 

 apical hairs. 



Distribution: Panama. 



Panama records: 



Canal Zone: Galeta Point, Mojinga Swamp. 



Cocl:6 Province: Aguadulce, Puerto Farall6n, Rio Hato. 



Dari^n Province: Garachine, Jaqu6, Punta Patino. 



Herrera Province: Puerto Chitr6. 



Los Santos Province: Las Tablas (type locality), Puerto Mensabe. 



Panama Province: Bayano, Isla Taboga, Pedregal. 



Discussion: This species is closely related to alahialinus Barbosa 

 and barbosai Wirth and Blanton, which are smaller with much more 

 obscure mesonotal pattern; the first species also with very faint wing 

 pattern and the second differing in having sensoria on the seventh 

 antennal segment. These species also differ significantly in the shape 

 of the male parameres and apicolateral processes of the ninth tergum. 



Culicoides gorgasi, like furens (Poey), which it superficially resembles 

 to a remarkable degree, is widespread in Panam,a in mangrove salt 

 marshes, but unlike /wrens its greatest abundance is reached in local- 

 ities on the Pacific coasts of Darien, Cocl6, and Los Santos Provinces. 



59. Culicoides furens (Poey) 



Figures 3, 62 



Oecacta furens Poey, 1853, Mem. Hist. Nat. Isla de Cuba, vol. 1, p. 236 (female; 

 Cuba; fig. female, wing, head, antenna, mouthparts). 



Culicoides furens, Lutz, 1912, Mem. Inst. Oswaldo Cruz, vol. 4, p. 16. — Hoffman, 

 1925, Amer. Journ. Hyg., vol. 5, p. 287.— Macfie, 1937, Ann. Mag. Nat. 

 Hist., ser. 10, vol. 20, p. 10 (male, female; Trinidad; fig. male genitalia; 

 synonyms, dovei Hall, niaculithorax Williston). — Root and Hoffman, 1937, 

 Amer. Journ. Hyg., vol. 25, p. 162 (male, female; United States; fig. male 

 genitalia). — Barretto, 1944,Anais Fac. Med. Univ. Sao Paulo, vol. 20, p. 89 

 (male; Brazil; fig. wing, palpus, .antenna and genitalia of male). — Barbosa, 

 1947, Anais Soc. Biol. Pernambuco, vol. 7, p. 15 (distribution and notes; 

 fig. male genitalia).— Wirth, 1952, Florida Ent., vol. 35, p. 91 (Florida; fig. 

 larva, pupa). — Foote and Pratt, 1954, Pub. Health Monogr., vol. 18, p. 21 

 (male, female; United States records; fig. wing, mesonotum, palpus, male 

 genitalia). — Ortiz and Leon, 1955, Bol. Inf. Cient. Nac, no. 67, p. 572 

 (female; Ecuador; fig. wing, palpus). — Wirth and Blanton, 1956, Florida 

 Ent., vol. 39, p. 159 (redescription, distribution, figs.). 



Ceratopogon niaculithorax Williston, 1896, Trans. Ent. Soc. London, vol. 3, p. 277 

 (female; St. Vincent; fig. wing). — Lutz, 1913, Mem. Inst. Oswaldo Cruz, 

 vol. 5, p. 53 (male, female; Brazil; fig. wing). — Floch and Abonnenc, 1942, 

 Inst. Pasteur Guyane Terr. I'lnini, publ. 49, p. 1 (female; Guadaloupe; fig. 

 wing, palpus). 



