

BOLLETTINO 



DRl 



Musei di Zoologia ed Anatomia comparata 



\ t I <\ r- dflll» R- IIiiiTorslth di Torino 



' / , lo J o 



N. 352 iwibhlicaio il 30 Maggio 1899 Vol XIV 



Viaggio del Dott. A. Borelli nel Chaco boliviano e nella Republica Argentina 



XVI 



G. W. KlRKALDY 



AQUATIC RHYNCHOTA 



1. Gerris Perseus Kirk sp. nov. 

 S. Lorenzo. 



2. Gerris A. nel rome ci a Kirk. sp. nov. 

 S. Lorenzo. 



[These two species are described in this Bollettino n° 351]. 



3. Corixa forciceps Spin., Berg. 



1 <$, somewhat immature from Caiza. 



4. Corixa Kollarii Fieli. 



2 imagines & nymphs. - Caiza. 



5. Plea maculosa Berg. 



5. Francisco. 



6. Plea Borellii sp. n. 



Above slightly convex, abruptly - slightly rotundately • truncate 

 alinost immediately posterior to the apex of the clavus. 



Head, pronotum & elytra densely punctured, not reticulated. 



Synthlipsis 2 l j l times wider than the base ofan eye, eyes very large 

 (seen in profile); head ornameli ted with a single narrow longitudinal 

 line, arising near the base, reaching almost to the apex. Breadth of 

 pronotum i j. i rd greater than its length, which is i \ 2 greater than that of 

 scutellum; base of the lattei* acuminate. Anterior tibia twice as long as 

 the tarsus, tarsal segments subequal, each i j i longer than the claws. 

 Intermediate tibia 2 l / 3 times as long as the tarsus, second tarsal segment 

 slightly longer than the first. 



Length 3-3 % mill., lat. 2 mill. 



