JOBLOTIA MOGILASIA 181 



larvae in a palm-spathe on the ground (A. H. Jennings). The species is also 

 reported from Sao Paulo, Brazil (Lutz) ; City of Eio de Janeiro (Peryassu) ; 

 City of Para (Goeldi) ; Oyapoc, in the State of Para (Ducke) ; Teffe, State of 

 Amazonas (Peryassu) ; Manaos, State of Amazonas (Theobald) ; Pernambuco 

 (Peryassu) ; on the margins of the rivers Xerem and Mantiquira, State of Eio 

 de Janeiro (Peryassu) ; Juiz de Pora, Oliveira, Lavras, Descalvado, and Ouro 

 Fino, State of Minas Geraes (Peryassu), Brazil. 



Dr. Lutz says (Centralblatt f. Bakter. Parasit. u. Infektionskr., Abt. i, xxxiii, 

 289, 1903) that the eggs are laid singly whereas those observed by Mr. Knab, 

 Mr. Jennings and Mr. Urich, and which certainly belong to this species, were 

 deposited in rafts. We believe that Dr. Lutz's observations were really based 

 upon another species. The very similar Joblotia trichorryes lays its eggs singly. 

 Dr. Goeldi has figured as the young larva that of Limatus durhamii, and this 

 figure has been copied by Theobald, instead of the larger figure which correctly 

 represents the species (Os Mosq. no Pard, pi. L, fig. 104 is L. durhamii, fig. 

 105 is J. digitatus) . Dr. Goeldi further apparently says that the larvae inhabit 

 water held by bromeliads and banana-leaves and even rain-puddles. We do not 

 think this can be a fact, for such locations are not rich enough in food to support 

 the larvae, which in our experience, live only in foul water, while that in the 

 bromeliads is fairly clean. On carefully reading Dr. Goeldi's remarks, however, 

 it appears that he instructed his assistants to bring him water "contained 

 between the leaves of bromelias, at the bases of the leaves of banana-plants, from 

 hollows in fallen trees, etc., and also in small puddles of rain-water, which had 

 been formed spontaneously, without the intervention of man." This water 

 was brought to him in glass jars, and contained Joblotia larvae. We infer that 

 the water was mixed, and that the Joblotia larvae came from locations similar to 

 those in which we have met with them. Dr. Lutz says that they are generally 

 bromelia feeders, but we do not know whether he is correctly quoted, or whether 

 his statement is based on observation or inference ; perhaps they refer to another 

 species. Both Knab and Busck found the larvae almost invariably in foul water 

 in cacao-husks and in cocoanut-shells. It seems probable that the larvae have 

 been addicted to cacao-husks from the earliest times. Wild cacao occurs in the 

 moist forests of tropical America, and the fallen fruits, broken and emptied by 

 monkeys or other animals, must have furnished suitable breeding-places for 

 this species long before the advent of man. 



Culex digitatus was considered identical by Blanchard (Les Moustiques, 319, 

 1905) with a species of Psorophora (subgenus Janthinosoma) from Guiana 

 which Neveu-Lemaire had wrongly identified with the African Oulex albitarsis 

 Theobald; Theobald accepts Blanchard's identification (Mon. CuUc., v, 390, 

 1910). Neither author could have carefully read the original description of 

 Culex digitatus which agrees in every respect with the species now before us. 

 Dyar and Kaab have described Neveu-Lemaire's species as Janthinosoma 

 vanhalli (Proc. Biol. Soc. Wash., xix, 134, 1906), which will now become 

 Psorophora vanhalli. 



JOBLOTIA M06ILASU. Dyar & Knab. 



Joilotia mogilasia Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 206, 1907. 

 Johlotia mogilasia Busck, Smiths. Misc. Colls., quart. Iss., lii, 77, 1908. 

 Joblotia (?) mogilasia Theobald, Mon. Culic, v, 621, 1910. 



Obigxnai. Desckiption of Joblotia mogilasia: 



5. — Form stouter than the preceding species; proboscis shorter than the body, 

 gradually enlarged towards the apex. Clypeus brown, prominent, with a fringe of 

 small hairs mixed with a few scale-like hairs at the sides, nude on the upper 

 surface. Palpi short and slender, about one fourth the length of the proboscis. 



