SEVENTEENTH ANNUAL REPORT. 



445 



C. SIX ROWS OF DENTICLES ON HYPOSTOME. 



Rhipicephalus annulatus, var. from Buenos Aires. 



Neumann (1897, p. 413) has mentioned a tick from Buenos Aires 

 which is apparently closely related to, if not identical with, BoopJiilus 

 decoloratus^ agreeing with that form in possessing three rows of denti- 

 cles on each half of the hypostome. Neumann says: 



Varieties. — One variety, insufficiently characterized because the male is lacking, is 

 distinguished from the type only by the presence of three rows of denticles on each 

 half of the hypostome. It is represented in the collection of the Museum of Ham- 

 burg by 59 replete females, brown red, from 6 to 10 mm. in length, from Buenos 

 Aires. ^ 



— NUMBER OF ROWS OF TEETH ON HYPOSTOME (?) MALE APPARENTLY WITHOUT TAIL. 



Hsemaphysalis rosea,^ from the West Indies. 

 (Figures 167,168.) 



In 1844, Koch described a West Indian tick as a new species, II. 

 rosea. Curtice and Neumann have expressed the opin- 

 ion that this is identical with the North American form, 

 Boophilus annulatus. Possibly they are correct in 

 this view, but a positive opinion on the subject can not 

 be given. Koch's (1844, p. 237) original description 

 reads: 



Hfemaphysalis rosea: Male. — Oval, posteriorly somewhat narrow, 

 very shining, indistinctly very finely punctate, posteriorly three 

 longitudinal grooves side by side, yellow red, almost rose red. ^^^^leR^^alcaratus 

 Legs yellow. Length seven-eighths line. After Birula, 1896^ 



Female. — Thorax elongate, blood red, anteriorly in middle field fig. 18. 

 a fiery red spot; replete body very large, with the same longi- 

 tudinal grooves, reddish olive color. Legs somewhat darker yellow. Length 2| lines. 



Habitat. — West Indies.^ 



1 Fancies. — Une variete, insuffisamment caracterisee par d^faut de m41e, ne se dis- 

 tingue du type que par la presence de trois files de dents sur chaque moitie de 1' hypo- 

 stome. EUe est representee dans la collection du Museum de Hambourg par 59 

 femelles repues, brun rouge, de 6 a 10 millimetres de longueur et provenant de 

 Buenos Aires. 



^Synonymy and Bibliography. 



1844: Hxmaphy salts rosea Koch, 1844, p. 237; type locality. West Indies. — Idem, 

 1847, pp. 25, 121, 122, Tav. xxvi, figs. 95, 96.— Murray, 1877, p. 200, figs. 2. 

 [Given as syn. of Boopldlus bovis by Curtice, 1891a, p. 318. — Idem, 1891b, 

 p. 685.— Idem, 1892c, p. 243.— Marx, 1892, p. 236.— Dolly, 1894, p. 997.— 

 OsBORN, 1896, p. 257.— Morgan, 1899, p. 139.] [See also Neumann, 1897, 

 p. 408, as syn. of Rhipicephalus annulatus.'] 

 ^ H. rosea. Eif5rmig, hinten etwas schmal, sehr gliinzend, undeutlich sehr fein 

 gepiinktelt, hinten drei Liingsgruben nebeneinander, gelbroth, fast rosenroth. Beine 

 gelb. Lange i Mannchen. 



Thorax langlich, blutroth, vorn im Mittelfelde ein Fleck feuerroth, Hinterleib 

 vollgesogen sehr gross, mit denselben Liingsgruben, rothlich-olivenfarbig. Beine 

 etwas dunkler gelb. Lange 2f Weibchen. 

 Vaterland: Westindien. 



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