Ultrastructure of the ovary of Dermatobia hominis (Diptera: Cuterebridae): III. Gonial cell degeneration

Defense reactions of Dermatobia hominis (Diptera: Cuterebridae) larval hemocytes.

The defense reactions against biological (Histoplasma capsulatum and Escherichia coli) and non-biological materials (China ink and nylon thread) were tested in vivo in third instar larvae of Dermatobia hominis. The cellular defense performed by larval hemocytes was observed under electron microscopy. China ink particles were phagocytosed by granular cells 5 h after injection. E. coli cells were...

Morphology of the antenna of Dermatobia hominis (Diptera: Cuterebridae) based on scanning electron microscopy.

Sensilla of the antennae of male and female Dermatobia hominis were studied by scanning electron microscopy. The images obtained were interpreted according to the scientific literature referring to the sensory structures of insects. Sensilla of the "long bristle" type and smaller spines of the "microtrichia" type were found in different numbers and patterns of distribution on the scape and pedi...

First report of Haematobia irritans (L.) (Diptera: Muscidae) as vector of Dermatobia hominis (L.jr.) (Diptera: Cuterebridae) in Minas Gerais, Brazil.

Biological transmission of eggs and larvae of the human bot fly Dermatobia hominis by a female of the horn fly Haematobia irritans is reported for the first time in South America. Seventeen females of H. irritans were collected near the municipality of Morada Nova (19oS, 45oW) in the Três Marias, region of northwestern Minas Gerais in June 1993 and sent to the Entomology Laboratory, Dept. of Pr...

Ophyra aenescens (L.) (Diptera: Muscidae) a new biological vector of Dermatobia hominis (L. Jr) (Diptera: Cuterebridae) in Minas Gerais, Brazil.

Dermatobia hominis infestation.

A patient is reported who, after leaving Venezuela, developed some boils on the left upper limb inhabited by Dermatobia hominis larvae. The curious life-cycle of this tropical fly is described with some considerations about the diagnostic problem. A simple unreported way of larvae extraction is suggested.