494 



SANITARY ENTOMOLOGY 



Disease 



Causative organism 



Insect transmitter 



Method of insect 

 transmissions 



Nature of 

 insect rdle 



Spirocheetosis, goose 



Spiroschaudinnia anserina. 



SpirochEetosis. 



See Relapsing fever 



Splenic fever. 

 See Cattle fever 



Suppurating wounds (blu 

 green pus) 



Surra 



Tahaga (el dedab, zousfana) 



Tapeworm, canine and human 



Tapeworm, cattle and man 

 Tapeworm, fowl 



Tapeworm, fowl 



Bacillus pyocyaneus. 



Castellanella evansi. 



Castellanella soudanense. 



Dipylidium caninum. 



Taenia saginata. 

 Choanoteenia infundibulum. 



Davainea cesticillus 

 Davainea tetragona. 



Argas p'^Tsicus. 



Musca domestica. 



Experimentally 



transmitted by 



Stomoxys calcitrans 



" geniculatus 



" nigra. 



Strong suspicion 



points to 

 Tabanus tropicus 

 " stnatus 

 " lineola 

 " fumlfer 

 " partitus 

 " vagus 

 "■ minimus 

 The following are al- 

 so suspected: 

 Lyperosia minuta 

 Philsematomyia cras- 



sirostris 

 Lyperosia exigua. 



Musca domestica. 



Aedes argenteus. 



Stomoxys calcitrans 

 " nigra 



Atylotus nemoralis 

 " tomentosus 



Trichodectes latus 

 Ctenocephalus canis 

 " ^ felis. 



Pulex irritans. 



Musca domestica. 

 Musca domestica. 



Musca domestica. 



Transmitted by 

 bite of ^ tick. 

 Transmission 

 is probably 

 the washing 

 into the 

 wound of the 

 organism in 

 Malpighian 

 excrement. 



Taken up from 

 wounds and 

 carried to 

 wounds. De- 

 posited in 

 feces on 

 wounds. 



Transmitted by 

 By bite. 



Taken up from 

 wounds and 



transmitted 

 to wounds. 



Mosquitoes ex- 

 perimentally 

 took up or- 

 ganism which 

 persisted for 

 hours. 



Transmission 

 by bite of fly 



(experimental). 



Insect swallows 

 eggs. Ani- 

 mals swallow 

 insects. 



Insect swallows 

 eggs. Depos- 

 its on food. 



Insect larvffi 

 swallow eggs, 

 chicken swal- 

 lows fly. 



Insect swallows 

 eggs. Chicken 

 swallows fly. 



Intermediate 

 host. 



Mechanical 

 carrier. 



Intermediate 

 host. 



Mechanical 

 carrier. 



Mechanical 

 carrier. 



Intermediate 

 host. 



Intermediate 



host. 



Mechanical 

 carrier. 



Intermediate 

 host. 



Possibly inter- 

 mediate host 



