I lo Veterinary Medicine. 



L. Denticulatum. Larval form in liver, lungs, 

 kidney, mesenteric glands, intestinal submucosa, 

 eyeball of sheep, goat, antelope, deer, dromedary, 

 ox, horse. Guinea-pig, cat, etc. 



Order SCORPIONIDA. 



About twenty species in the Southern States. None North. 

 Are nocturnal. Each has a large, caudal poison sting. Rarely 

 fatal to man or domestic animal. 



Order ARANEIDA. SPIDERS. 



Abdomen unsegmented. Attached to thorax by a narrow 

 stalk. 



Eurypetnea Hentzii. Tarantula. Largest spider of South- 

 ern States. Bite is venomous, but not very dangerous. 



Order HYMENOPTERA (hymen membrane, pteron wing). 



BEES. WASPS. ANTS. 



Wings four, membranous, few or no veins. Abdomen in 

 female and workers usually with a sting. 



Sub-Order Aculeata. 



Family VESPID^. SOCIAL WASPS. 



Genus : Vespa, yellow jacket, hornet. 



Genus : Polistes. Abdomen long, spindle-shaped, black, with 

 yellow rings. 



Genus : Polybia. On Pacific Coast. In numbers may sting 

 large animals to death. 



Family APINA. BEES. 



Genus : Bombus. Bumble-bee. 



Genus : Apis. Honey-bee. In numbers stings may be dan- 

 gerous. 



Super-Family. Formicina. Ants. 



Family. Formicidae. Typical Ants. 

 Bite, but don't sting. 



Family- Ponderina. 

 Queens and workers sting. 



Family. Myrmicidse. 



Queens and workers sting. Formic acid of bees and ants is 

 painfully irritating. 



