CULEX INVOCATOR 323 



apices of the femora. The venter, however, has broad white basal bands. May be 

 distinguished from the preceding species by the much greater length of the anterior 

 fork-cell as compared with its stem, and in having some upright forked cells on the 

 head which are absent in ^. Butleri. Length. About 2.8 mm. 



Habitat. Described from a single, very well preserved $ specimen, sent me by 

 Dr. Gray, of St. Lucia, West Indies; the disc marked " St. Glivan, Castries." Also 

 recorded from the Lower Amazon. 



There are no specimens of this species in the collection of the U. S. iSTational 

 Museum. 



The male, the larva and the life history and habits are unknown. 



Itacoatiara, Lower Amazon (Theobald) ; St. Lucia, West Indies (Giles). 



Colonel Giles records this species from our region on the strength of a single 

 female specimen received from Santa Lucia. We think it very doubtful that the 

 identification of this specimen is correct, as we have few species with such a wide 

 distribution, our species from the West Indian Islands being generally distinct 

 from those of the mainland. Colonel Giles's brief description appears to agree 

 with Theobald's more detailed one, yet neither is sufficiently detailed to enable 

 us to place the species in our table. The species seems allied to our Culex 

 Jiesitator, with a uniform proboscis in the female and long palpi in the male, 

 and we suspect that Culex nigricorpus will be found to have long palpi in the 

 male, when that sex is discovered, in spite of the species having been described as 

 an Aedes. We have, unfortunately, no material from the island of Santa Lucia. 

 From analog5^ we judge that its species will prove largely endemic; the present 

 species will prove distinct from, though allied to the Culex nigricorpus from the 

 lower Amazon and to Culex hesitator from Panama. Theobald later referred 

 his Aedes nigricorpus to his genus Verrallina which seems to be illy founded. 

 The type species of Verrallina is the East Indian Verrallina butleri, which 

 Edwards has recently shown to belong to the genus Aedes in the restricted sense 

 (Bull. Ent. Ees., iv; 229, 1913). 



CULEX INVOCATOR Pazos. 



Culex invocator Pazos, Anal. Acad. Cien. med. fis. y nat. de la Habana, xlv, 426, 1908. 

 Culex invocator Dyar & Knab, Smiths. Misc. Colls., quart, iss., lii, 258, 1909. 

 Culex invocator Pazos, Sanidad y Ben., ii, 50, 561, 1909. 



Obiginal Description of Culex invocator: 



Cataiogo numgrico. Nums. 364, 556, 277, 311 y 308. 



Nombre vulgar: Mosquito. 



Sinonimia. 



Diagnosis: Long. tot. incluyendo la trompa m. m. 5'75. 



Cabeza: negra, nuca ocupada por horquillas azabache, frente, con dos cerdas en 

 anteversion, ojos ribeteados por cerdas equidistantes, negras. Clipeus desnudo. 

 Ojos, color negro. Antenas morenas, no est&n anilladas de colores, de la misma 

 longitud que la trompa, no son plumosas. Palpos negros, ocupan un quinto de la 

 longitud de la trompa no tiene anillos coloreados. 



Torax: castano obscuro, de m. m. 1'75 de long., por su parte posterior proximo al 

 escutellum cerdas negras, flancos castano obscuro, no tiene manchas. Escutellum: 

 con escamas en haz doradas, los lobulos presentan entre otras cerdas, cuatro notables 

 en el centre y tres para los laterales. Metanotum: negro lustroso. Alas transpa- 

 rente, ligeramemte ahumadas, no tienen manchas ni en el borde costal ni en las 

 nervuras, franjas ahumada obscura. Las escamas que revisten las nervuras muy 

 finas y alargadas m. m. 3'0 para el ala. Balancines: moreno con pedlculo claro. 

 Patas morenas. 



Abdomen: castano obscuro, como truncado posteriormente, no tiene ni manchas 

 ni bandas claras ni obscuras. Tiene manchas prolongadas sobre los costados de los 

 segmentos, claras, color crema, pequeiias, caracterlsticas. Long. m. m. 2'50. 



Nada sabemos sobre su vida, desconocemos la larva. Capturado en esta villa. 



Description of Femau: and Male of Culex invocator (Larva Unknown) : 



Female. Proboscis moderate, uniform, labellse conically tapered; vestiture 

 black ; sette minute, curved, black, those on labellae more prominently outstand- 



