Vol. xxii] 



ENTOMOLOGICAL NEWS 



75 



Mallophaga from Californian Birds. 



By V. L. KELLOGG and J. H. PAINE, Stanford University, 



California. 



The following determinations of Mallophaga and records 

 of hosts are based on specimens taken from various birds at 

 Monterey, California, by Mr. Jos. Clemans, Chaplain of the 

 I5th Infantry Regiment, stationed at the Presidio. 



Docophorus pertusus Nitzsch, var. monachus n. var. 

 One male from the Virginia rail, Rallns virginianus (Mon- 

 terey, California). 



The type, D. pertusus, has been 

 found on the following birds in Cali- 

 fornia : Fulica americana, Erismatura 

 rubida, and Colymbus nigricollis cali- 

 fornicus. The sinuous posterior mar- 

 gin of the first abdominal segment 

 shown in the figure of the variety is 

 also found in the type, though it has 

 not been referred to heretofore. 



The variety differs in the greater 

 number of hairs found on the clypeus 

 and on the abdomen. On the clypeus 

 of the type there are two small hairs 

 near the trabeculae while in the vari- 

 ety there are about eight on each side 

 extending from the trabeculae to the 

 expansion of the pincer-like organs. 

 On the posterior margin of each seg- 

 ment of the abdomen in the type are 

 found not more than four hairs while in the variety they are 

 numerous, sixteen occurring on the fifth segment with the 

 number diminishing anteriorly and posteriorly. 



Docophorus pertusus Nitzsch. 



One young specimen from the American coot Fulica ameri- 

 cana (Monterey, Cal.) 



Fig. i. Docophorus pertusus 

 Nitzsch. var. monachus n. 

 var. Female. 



