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PROCEEDINGS OF THE NATIONAL MUSEUM 

 MEASUREMENTS OF ACTORNITHOPHILUS FUNEBRE 



Genus AUSTROMENOPON Bedford 



AUSTROMENOPON BECKI (Kellogg) 



Menopon becki Kellogg, Trans. Amer. Ent. Soc, vol. 32, p. 322, 1906. — Thomp- 

 son, Ann. Mag. Nat. Hist., ser. 11, vol. 2, p. 460, figs. 2, 3a, 3c, 1938. 



Kellogg's single female of this species (the type) was from Phaethon 

 aethereus, while he described and figured two males from P. rubricauda. 

 In the Guam collection is a series of two males and foiu* females of a 

 Menopon that seems to be this species, taken on Phaethon lepturus. 

 The males agree very closely with Thompson's description and figures, 

 the only appreciable difference being a slight discrepancy in. the num- 

 ber of hairs on the posterior margin of the prothorax (16 instead of 18) 

 and the pterothorax (14 instead of 18) . There is also a slight difference 

 in the outline of the head, my specimens having the frons very slightly 

 pointed medially and a greater swelling at the sides, while the occipital 

 margin is more uniformly concave. These differences, however, may 

 be more apparent than real and are hardly worth considering. The 

 remainder of the chaetotaxy is practically the same, as are also the 

 male genitalia, which, in reality, as stated by Thompson, have the 

 apex of the basal plate asymmetrical, with both parameres curving to 

 the right (looking from above) . My males show the genitalia exactly 

 as figured by Thompson. There are no special differences between 

 the sexes except in size; even the last abdominal segment is similiarly 

 shaped but bears a double fringe of very fine setae. In the female, 

 how^ever, the gular bars bear six hairs of considerable length, especially 

 the three posterior ones. These six hairs are in addition to the single 

 hair just inside the end of bar. My males have these hairs as given 

 by Thompson, four in number. 



Genus MENACANTHUS Neumann 



MENACANTHUS SPINIFERUS (Piaget) 



Menopon spiniferum Piaget, Les pediculines: Suppl., p. 99, pi. 10, fig. 9, 1885. 

 (Host: Cyanocorax chrysops.) 



Thompson recorded this parasite from Sturnus vulgaris from 

 Canada, and there are several Old World records of its presence on 



