HYALOMMA AEGYPTIUM 609 



GENUS HYALOMMA, KOCH, C. L. 



Capititlum long with rectangular base and without lateral angles. 

 Palps and hypostome long ; spiracles comma -shaped. Anal groove 

 Present. Coxa I bidentate. (Neumann) 



Neumann gives the following key to the species : 



NEUMANN'S KEY TO THE SPECIES OF HYALOMMA 



MALES 



1. Scutum dark brown ............ 2 



Scutum light yellow, with dark punctations, and decided 



markings hippopotamense. 



(South Africa.) 



2. Coxa I deeply bidentate ; internal border of adanal plates 



longer than the posterior border ......... 3 



Coxa I not deeply bidentate ; internal border of adanal plate 



shorter than the posterior border syriacum. 



(Syria ; Asia Minor ; Algeria ; Tunis ; Tripoli ; Egypt ; Greece ; Athens ; Roumania ; 



Russia ; Senegal ; Congo.) 



3. Scutum with numerous deep punctations, lateral groove 



present aegyptium 



Scutum with few punctations, which are superficial, no lateral 



groove rhipicephaliodes. 



(Egypt.) 



FEMALES 



1. Scutum dark brown ........... 2 



Scutum pale yellow, with dark punctations, and decided 



markings hippopotamense. 



2. Coxa I deeply bidentate, scutum as broad or a little broader 



than long with numerous punctations ..... aegyptium. 

 Coxa I not deeply bidentate, scutum a little longer than broad, 



with punctations less numerous syriacum. 



Hyalomma aegyptium, Male. (Plate LXXII, figs. 1 and 3.) Scutum 

 brown, with numerous unequal punctations ; eyes spherical. Hypostome 

 spatulate with six rows of teeth. Coxa I divided into two long spurs. 

 Adanal plates rectangular, the internal border much longer than the 

 posterior ; accessory plates small and rectangular. Scutum with a short 

 lateral groove close to the border, extending to and bordering the 

 external festoon, which is more or less indistinct. Length 6 to 7 mm. ; 

 width 3'5 to 5 mm. (Neumann) 



Female. Scutum oval, hexagonal, with sinuous borders, as broad or 

 a little broader than long, with lateral grooves. Length 7 to 20 mm. ; 

 width 3'5 to 18 mm. (Neumann) 

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