Hepatocystis brosseti is a species of the genus Hepatocystis

Hepatocystis

Hepatocystis is a genus of parasitic protozoa transmitted by midges of the Culicoides genus. Hosts include Old World primates, bats, hippopotamus and squirrels. This genus is not found in the New World...

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Species in this genus are parasitic protozoa transmitted by flies of the genus Culicoides

Culicoides

Culicoides is a genus of biting midges in the subfamily Ceratopogonidae. Around 500 species of Ceratopogonidae are at present placed in the genus and this is split into many subgenera. Several species are known to be vectors of various diseases and parasites which can affect animals.-Notable...

and infect mammals.

Description

The cysts are found in the liver

Liver

The liver is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion...

 and spleen

Spleen

The spleen is an organ found in virtually all vertebrate animals with important roles in regard to red blood cells and the immune system. In humans, it is located in the left upper quadrant of the abdomen. It removes old red blood cells and holds a reserve of blood in case of hemorrhagic shock...

. Once mature the schizonts become extracellular, convoluted and filled with abundant colloidal substance. They are of medium size (diameter 250 micrometres).