Pomona College, Clarjmont, California 



29 



Uropoda sp. Young on carabid beetle and on Scolopendra. 



Dermanyssidae. Mandibles for piercing. Body sometimes constricted. Para- 

 sitic on vertebrates. 



Dermanyssus gallinae Redi. Parasitic on chickens. 



Orbatidae. Horny beetle miles. Cephalothorax with a special hair on the pos- 

 terior lateral vertex. Skin hard. Abdomen wtih wing-like expansions. Body minute, 

 divided into two parts by transverse suture. Mouth-parts small hidden. Live upon 

 vegetable or decaying material. Palpi five-jointed. 



Ilermannia hirrnfitypliua Hall. Brown, black markings, mandible chelate. Rough 

 deep sculpturing. Claremoiu. 



