188 Dr. E. L. Trouessart — Synoptical Revision 



Genus Agaue, Lohmann, 1889. 



Lohnrann (8), p. 85. 



Char. Palpi articulated laterally to the rostrum, elongated, 

 mobile, third joint scarcely shorter than the last one, which is 

 conical and bears some short seta?. Otherwise the characters 

 are those of Halacarus proper. 



M. Lohmann (/. c.) has taken as the type of this genus the 

 Halacarus parvus of Chilton *, a species from New Zealand 

 which is known to us only from the description and figure 

 given by the last-named author. 



But this description and figure leave some doubts as to the 

 true affinities of this species, which might well be a Lep- 

 topsalis. In consequence of this M. Lohmann (in litteris) 

 has kindly agreed with us to take as the type of the genus 

 Agaue brevipalpus. Tit., a species from the Atlantic and 

 Mediterranean, which distinctly presents the characters of the 

 genus as indicated by M. Lohmann himself. 



This genus, which is essentially southern (as it does not 

 advance towards the north beyond the mouth of the Loire), 

 includes, besides H. parvus, four species, of which three are 

 European. 



1. Agaue brevipalpus. 



Trouessart (10), p. 181. 



Char. Rostrum elongated, with a broad conical base, and 

 with the anterior region (starting from the base of the palpi) 

 narrow and compressed j hypostotne passing beyond the point 

 of the palpi '; third joint of the palpi bearing a short and 

 slender spine directed forward. Epistome terminated in front 

 by a very obtuse point. Anterior legs more robust than the 



* Chilton, I. c. (6), describes two species ofHalacaridse from the shores 

 of New Zealand, viz. : — 



1. Halacarus parvus, Chilton. 



Agaue parva, Lohmann, I. c. p. 86. 



Char. Epistomial plate cut squarely, slightly rounded in front. Claws 

 pectinate, furnished with a large lateral tooth ; an imgueal groove. First 

 pair of legs with close-set tactile hairs. Total length O70 millim. 



Hob. New Zealand, Littleton Harbour, littoral zone. 



2. Halacarus truncipes, Chilton. 



Char. This species is remarkable for the great development of the 

 ungueal groove of the tarsus, within which the claws can be withdrawn 

 and completely concealed, in such a way that Chilton supposes that they 

 do not exist and are replaced by simple hairs. 

 Same habitat. 



