BOLLETTINO 



DKI 



Musei di Zoologia ed Anatomia comparata 



dell a li. Dui rurglta di l'orino 



N. SSO pubblicato il 25 Maggio 1899 Vol. XIV 



Viaggio del Dr. Enrico Festa nell'Ecuador e regioni vicine. 

 XIX. 



G. W. KlRKALDY 



AQUATIC RHYNCHOTA 



1. Gerris sp. nov. 



A single macropterous <f of a new species of the subgenus Limnometra, 

 from Valle del Zamora; I ha ve not described it as the antennae are 

 missing. 



2. Gerris sp. ? 



A single nymph (probably representing a new species) of the subgenus 

 Lìmnometra from Gualaquiza. t 



3. Gerris liyalinus Fabr. 



(subg. Limnoffonus). Macropterous e? 9; apterous <f. — Gualaquiza. 



4. Gerris sp. ? 



Nymphs of one or two species from Foreste Rio Peripa. 



5. Gerris fiavollneat'us Champion. 

 Gualaquiza; Harro; Foreste Rio Peripa. 



6. Potamobates t>Id.eiitatu.s Champion. 

 Apterous, cTj, — Gualaquiza. 



1 must admit that this species has puzzled me very considerably, 

 and that I ani now by no means satisfled as to my conclusions. 



2 d & 1 9 from Gualaquiza seem to me to be undoubtedly p. bidentatus 

 Champion, though the details of colouring & the proportions of the an- 

 tennae by no means agree with Champion's account. Four other exam- 

 ples (ali 9) from foreste Rio Peripa, may possibly be P. unidentatus, 

 although not accordant with the originai description; they seem to be 

 distinct specifìcally from the 3 from Gualaquiza. 



