Note 145 — LETTER IV.
Reading edition
Latreille after De Geer (vii. 153—.) supposes the Pique and Nigua of Ulloa to be synonymous with Ixodes americanus, L. Hist. Nat. vii. 364. but it is evident from Ulloa's description (Voy. i. 63. Engl. Trans.) that they are synonymous with the Chigoe, or Pulex penetrans.