12 ILLINOIS BIOLOGICAL MONOGRAPHS [222 



PART I BIOLOGY 



THE HOSTS INFECTED 



Gregarines infect only invertebrates and they have been reported 

 from the following phyla: Coelenterata, Echinodermata, Platyhelmin- 

 thes, Coelhelminthes (Archianellidas, Gephyrea, Hirudinea, Annelida 

 Polychasta and Oligochaeta), Arthropoda, (Crustacea, Onycophora, My- 

 riapoda, Hexapoda, and Arachnida), Mollusca and Chordata (Enter- 

 opneusta and Tunicata). Thus far the only groups below the verte- 

 brates from which gregarines have not been reported are the phyla Eoti- 

 fera, Porifera, and Protozoa, and the sub-phylum Leptocardii. 



Partial List of Animals Examined for Gregarines 



Number examined Number parasitized 



Myriapoda 



Scutigera sp. 10 o 



Scolopendra sp. 5 o 



Scolopocryptops sexspinosus 10 2 



Lithobius sp. 15 6 



Geophilus sp. 15 o 



Euryurus erythropygus 2 2 



Callipus lactarius 24 20 



Parajulus impressus 30 25 



Polydesmus virginiensis 6 o 



Spiribolus marginatus 6 o 



Julus sp. I0 o 



Hemiptera 



Reduvius sp. IO o 



Many unidentified o 



Diptera 



Musca domestica io o 



Unidentified larvae 50 o 



Neuroptera 



Damsel fly larvae 15 o 



Dragon fly larvae 30 5 



Lepidoptera 

 Many unidentified larvae n 



