[Influence of the nature of the ingested blood on the gonotrophic parameters of Phlebotomus perniciosus under laboratory conditions]. / Influence de la nature du sang ingéré sur les paramètres gonotrophiques de Phlebotomus perniciosus sous conditions de laboratoire.

A laboratory study was conducted about the duration of developmental stages and the productivity connected with the type of blood meal ingested by the female of Phlebotomus perniciosus. The pre-oviposition and egg incubation periods are not affected whatever the blood ingested by the female. The shorter time required to achieve larval development (rabbit) and pupal development (hamster) governs the generation time, shorter than in the other hosts (dog and man). The productivity is greater when blood is ingested from the rabbit and the dog. This is mainly due to the smaller number of eggs retained in females with these hosts.

Seasonal dynamics of Larroussius species in Aragon (N.E. Spain).

Two species belonging to subgenus Larroussius (P.perniciosus and P. ariasi) were collected in Aragón (Northeast of Spain). P.perniciosus was found in all places taken into account in the study, being the most abundant species in the Mediterranean-type vegetation where it is thought it is the principal vector involved in the transmission of Leishmaniasis. On the other hand, P. ariasi was not identified in the Central area, the most dry one, of the Mediterranean zone. It reached its highest density on the Submediterranean-type vegetation where it is considered the main vector.

Seasonal dynamics of Sergentomyia minuta (Rondani, 1843) populations in Aragon (N.E. Spain).

This paper shows the abundance, density and phenology of Sergentomyia minuta in Aragon (Northeast of Spain). Specimens were collected using sticky traps and sampling was carried out taking vegetation as ecologycal indicator. Differences in density were found among the studied areas related to ecologycal conditions. S. minuta showed its highest density in the coldest and rainiest area of Aragon (Central Pyrenees). These results are discussed with those got from other authors in different parts of the Mediterranean Basin.