HIPPOBOSCIDAE. 



11 



species of whicli specimens are available from Samoa, one may be referred 

 positively to a named species, the other but doubtfully so. 



Ornithoica promiscua Ferris and Cole. 



1922. Ornithoica promiscua Ferris and Cole, Parasitology, Vol. 14, pp. 203- 

 205, text-figs. 19-20. 



1923. Ornithoica confluens (Say) Aldrich, Insecutor Inscitiae Menstruus, 

 Vol. 11, p. 79 (partim). 



1925. Ornithoica promiscua Ferris and Cole, Ferris, Philippine Journal of 

 Science, Vol. 28, pp. 331-333 ; 2 text-figs. 



1926. Ornithoica promiscua Ferris and Cole, Ferris in Essig, Insects of 

 Western North America, Fig. 501. 



Previous records. — Recorded by Ferris and Cole from various Passerine 

 birds and from Falco sparverius in California, and by Ferris from Chrysocolaptes 

 rufopunctatus and Ceyx samarensis in the Philippine Islands. 



Present record. — Two females from Apia, Samoa, 23.ii.1922, without indi- 

 cation of host ; one female from Myiagra vanicorensis, Malololelei, Upolu, Samoa, 

 29.vi.24 ; one female from Demiegretta sacra, Apia, Upolu, Samoa, 9.iii.l924 ; 

 all collected by J. S. Armstrong. 



Notes. — Since this species has thrice been figured by the present \vriter 

 in readily accessible publications, no extensive notes seem called for. It differs 

 from 0. pusilla (Schiner) in the possession of four transverse tergal plates on the 

 abdomen, and of conspicuous chitinous tubercles, each bearing a short stout 

 seta, on the ventral side of the abdomen. As regards the size of these tubercles, 

 there is some variation among the numerous examples available to me for com- 

 parison, but the specimens cannot be arranged in any geographical series thereby, 

 there being as much difference among specimens from California as there is 

 between Calif ornian individuals and those from Samoa or from the Philippines. 



Ornithoica pusilla (Schiner). 

 Text-figs. 1,2. 



1868. Ornithomyia pusilla Schiner, Reise Novara, p. 374. 



1900. Ornithoica pusilla (Schiner), Speiser, Ann. Mus. Civ. Storia Nat. 

 Genova (2a), Vol. 20, p. 559. 



1904. Ornithoica pusilla (Schiner), Speiser, Zeitschr. f. Hymenopterologie 

 und Dipterologie, IV. Jahrg., p. 86. 



