FURTHEK NOTES ON ACABI. 127 



others, and behind these three again four small suckers , forming a 

 trapezium with its larger base directed towards the anus. Between 

 the two suckers on the left and between those of the right side of 

 this trapezium there is a very Hght-refracting and striated chitinous 

 disk, which at first may be taken for a sucker. Further we observe 

 the two valves of the lixing-apparatus. Underneath these two valves 

 there is, as in the hypopus of Dermacarus sciurmus (C L. Koch) 

 a petioled sucker ; the base of the sucker is circumvallated ; the 

 sucker itself is striated, refracting and apparently longitudinally 

 split. On each side of the valvae there is a larger high refracting 

 chitinous disk, which üu,ia.rdin took for a large sucker. 



All the legs bear a strong claw ; the claws of the fourth 

 pair of legs, however, is smaller than the others. The forelegs 

 bear a few feathered hairs on their proximal, and smooth hairs 

 on their distal joints. The tarsi of the 1st, 2d and 3d legs bear 

 moreover one long and four beautifull , curved lanceolated hairs, 

 resembling those of Ti/rogli/phus mycophagus , Trlchotarsus japonicus 

 and Trick, ornatus. The tarsus of the 4th leg ends in a longhair, 

 as long as the length of the céphalothorax. 



14, Acari, collected by Dr. F. Heim. 



Dr. F. Heim, of Paris, has sent me several Acari with the 

 request to determinate them. As I consider the publication of my 

 determinations useful to the knowledge of geographical distribution, 

 I do so, with the approbation of the proprietor. 



The Acari are : 



1. Seius vepallidus (C. L. Koch), nympha generans. — On Persica 

 vulgaris, Cucunds melo, feeding on Teiramjchufi , Bure, Meurthe 

 et Moselle, 20 Sept. 1898. — 6 ex. 



2. Laelaps aculeifer G. Can,, nympha i. — Feeding on 

 Uliizoglyphus echinopus Fum. et Rob. in a decaying Crocus-hn\h. — 

 1 ex. , Beaune-la-Rolande , Loiret , Septembre. 



3. Ixodes reduvius (L.) — 2 c? , 2 2 , 1 nympha. — On Homo 

 sapiens, Canis familiaris , Levins tlmidus , Bure, Meuithe et ^lo- 

 selle, 1897. 



