PAPER I CARRIKER ON MALLOPHAGA 7 



M. pici pici. There is a short, narrow, pointed, and curving sclerite on 

 each side of the basal portion of the basal plate (see figure), deeply pig- 

 mented (blackish), which is also present in pici pici but is absent in all other 

 species discussed in this paper. The plemites are wider and more promi- 

 nent than in pici pici. Nevertheless, pici dryobates (Eichler) does not seem to 

 be specifically distinct ivom. pici pici (Denny), and it has been classified as 

 a subspecies oi pici pici. Measurements given under preceding species. 



Menacanthus picorum (Eichler) 



Picacanthus picorum Eichler, 1953, Beitr. Vogelkunde, vol. 3, nos. 3-4, p. 181, figs. 

 25-27. Host: Pious canus canus Gmelin. 



I have not been able to secure a specimen of this species. The only 

 figures of this species given by the author are : The inner end of first and 

 second coxae, with the setae between them; the sternal head spine and 

 setae on abdominal sternite IV. The measurements are too close to those 

 oipici dryobates to be of any value. Apparently, the only differences between 

 picorum and pici dryobates are: Head spine slightly shorter and thicker in 

 pici dryobates; sternal patch of setae on IV shghtly more abundant in picorum. 

 I do not consider these very small differences to be specific; in fact, the 

 figure showing the setae oi pici dryobates does not agree with my specimens, 

 there being more setae than shown in Eichler's figure, while his figure of 

 the head spine does not agree at all with those of my specimens. I can 

 see no difference between the setae arising between the first and second 

 coxae of Eichler's figure oi picorum and those of my specimens oipici dryobates. 

 Without an examination of specimens from Picus c. canus, I am not prepared 

 to assert the status of Ai. picorum. 



For comparison with the above species the measurements of M. picorum 

 as given by Eichler are: Length of temples .30, width of temples .55, 

 length of body 1.75. 



Menacanthus praecursor (Kellogg) 



FiGtTRE i:3,a 



Menopon praecursor Kellogg, 1899, Occ. Papers California Acad. Sci., vol. 6, p. 46, 



pi. 4, fig. 8. Host: Melanerpes uropygialis. 

 Menacanthus praecusor. — Hopkins and Clay, 1952, Checklist of Mallophaga, p. 214. 



Host: Melanerpes [hypopolius] uropygialis (Baird) [^=M. hypopolius cardonensis 



Grinnell]. 

 Through the kindness of K. C. Emerson, I have been able to examine 

 and figure two cotypes of this species, both females. The male has not 

 been seen. 



The head differs decidedly in shape from that of M. pici pici and its races, 

 being twice as wide as long (occiput to frons) ; the sides of frons are flattened, 

 with tip rounded, with temples small, and occipital margin deeply concave; 



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