Handbook of medical entomology . ichman becomes infestedwere made known. About 1900, Blanch-ard observed the pres-ence of packets of large-sized eggs under theabdomen of certain mos-quitoes from CentralAmerica; and in 1910,Dr. Morales, of Costa Rica, declared that the Dermatobia depositedits eggs directly under the abdomen of the mosquito and that theywere thus carried to Nunez Tovar observed themosquito carriers of the eggs andplacing larvae from this source onanimals, produced typical tumorsand reared the adult flies. Itremained for Surcouf (1913) towork out the full details.


Handbook of medical entomology . ichman becomes infestedwere made known. About 1900, Blanch-ard observed the pres-ence of packets of large-sized eggs under theabdomen of certain mos-quitoes from CentralAmerica; and in 1910,Dr. Morales, of Costa Rica, declared that the Dermatobia depositedits eggs directly under the abdomen of the mosquito and that theywere thus carried to Nunez Tovar observed themosquito carriers of the eggs andplacing larvae from this source onanimals, produced typical tumorsand reared the adult flies. Itremained for Surcouf (1913) towork out the full details. Hefound that the Dermatobia de-posits its eggs in packets coveredby a very viscid substance, onleaves. These become attachedto mosquitoes of the speciesJanthinosoma lutzi (fig. 84) whichwalk over the leaves. The eggswhich adhere to the abdomen,remain attached and are thustransported. The embryo de-velops, but the young larva (fig. 82) remains in the egg until it hasopportunity to drop upon a vertebrate fed upon by the Mosquito carrying eggs of Dermatobiacyaniventris. After Surcouf. The MuscidcB 117


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915