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NOTES. ON FLEAS IN THE K. K. HOFMUSEUM IN VIENNA. 



By the HON. N. CHARLES ROTHSCHILD, M.A., F.E.S. 



(I'late IX,) 



1. Echiduophaga ambulaus Olliff. 



Echidunpharja ainJjulaiis Ollifif, Prnc. Linn. So,;. .V. 6'. Wales (2). i. p. 172 (1881',) (N. S. Wales, off 

 Erhiihia hystrix). 



rMHEKE are a unmlior of ffiuiiles in the collection of the K. K. Hofiuuseum which 

 -L belouy; to a species not known to us when we iiublished the " Revision of the 

 Sarcopsi/lUflaa " in the Thompson, Yatis, ami Johiixton Laboratories lieport, vii. 

 (1906). This insect, we think, is the true E. ambulaus. Mr. W. J. Rainbow has 

 kindly sent ns a sketch of the tarsi of the tyiie-specimeu of /:-'. ambulaus which 

 jiroves that umbulans has two ventral apical bristles on the fifth tarsal seg-meiit 

 like (/allinaceus, and that this segment bears on each side two strong bristles and 

 one thin one. The Vienna specimens, taken off Echidna hi/stri.r, show the same 

 character, and doubtless are the true ambidans. We give a figure of the fifth 

 segment of the midtarsus on I'l. IX. tig. !). 



2. Echidnophaga myrmecobii spec. uov. (Waterhonse indescr.). 



Snrcnpntjllii. mijniieojhii Waterhouse, Proc. ICiit. Sue. Lmuh p. 23 (1887) (nom. nudum, West 

 Australia, off MijriitecnliiiK). 



Ecliiiliiopliai/a ambulan.'), Rothsch. & Jord. (uec Olliff, err. deterni.), Thoiiips., Yutcs tfc Johiist. 

 Labiir. T{i'pt. vii. p. 54. n. 6 (lOOli) (N, S.Wales, Victoria, W. Austr., off Trirliomirus puljietiiln^ 

 Bcttomjia le.^nc/iri, Diamenia s'lpnxilittsa^ .M;irnifcnhtnit faHriutus^ Parufjale lagotis). 



This insect was erroneously identified by us as ambulaus (see above). We 

 accept for it the name introduced by Mr. Waterhouse, making our S off Trichosurus 

 from Sydney the " type." 



E. myrmecobii agrees very closely with E. ifalliuacciis, differing from the 

 latter in having only one ventral apical bristle on the fifth tarsal segment instead 

 of two. 



3. Ceratophyllus flaveolus spec. nov. (PI. IX. fig. 6.) 



Allied to r. _(/«;//««« Schrank (1S04) ; smaller and much [laler. Only one ? 

 known. 



Head. — The frous bears )5 bristles in f'lunt of the eye and a row of 4 smaller 

 ones before them. On the occiput there is one bristle behind the base of the 

 antenna and two more above the middle of the anteunal groove, besides the 

 nsual snbapical row. 



Thorax. — The comb of the pronotum consists of 32 spines. 



Abdomen. — The tergites bear two rows of bristles and a few additional hairs 

 in front of the rows, the number of bristles being on the first tergite l-") in the 

 anterior and 13 in the posterior row, the second tergite bearing I'J bristles in 

 each row. The first sternite has 7 bristles on each side, the following four sternites 

 each bearing a row of 5 to 8 bristles on each side and 5 to 10 bristles in front 

 of the row. The sternite of the seventh segment has a row of 8, in front of 

 which there are more than 20 bristles. The antepygidial bristles are longer than 

 in gallitiae, and the central one of these bristles is only a little over twice the 



