37° 
The Ohio Naturalist. 
[Yol. VIII, No. 8, 
ON THE AQUATIC AND SEMI-AQUATIC HEMIPTERA 
COLLECTED BY PROF. JAMES S. HINE IN 
GUATEMALA. 
(First Paper.) 
J. R. de la Torre Bueno. 
When Professor James S. Hine made his trip to Guatemala in 
the winter of 1905, he was good enough to permit me to secure 
his collections of Aquatic and Semi-Aquatic Hemiptera, and I 
gladly availed myself of the opportunity. As a consequence, 
I received one of the most notable single collections of waterbugs 
that has been made. This collection has been in my hands for 
study for the last three years, but owing to the breaking-down 
of my health and to other reasons no less imperative, my work 
on it has been so slow that it has seemed to me convenient to 
publish what results are in shape at present, and the remainder 
as shortly after as may be done. 
When Mr. G. C. Champion made his protracted stay in Central 
America in 1879-83, his efforts yielded 72 species in 32 genera, 
for the whole region treated of in Biologia Centrali Americana, 
of which 53 species in 24 genera were captured in Guatemala. 
The total number of species recorded from that region and noted 
in the work cited numbered 13G in 32 genera, two being new, of 
which records 53 species, 23 of them new, in 25 genera, were 
found in Guatemala. 
Prof. Hine’s collecting was far more successful, both as to 
number of specimens and new and unrecorded forms, and undes¬ 
cribed genera. All the families of waterbugs are well represented, 
although no examples of eight genera were secured, these being 
Merragata ( Hebridae ), Veil a and Platygerris (Gerridae ), Mononyx 
(Nerthridae ), Curicta ( Nepidae ), Cryphocricos (Naucoridae ), Plea 
and Notonecta (N otonectidae) , and Corixa (Corixidae) . On the 
other hand, Prof. Hine adds to the fauna three heretofore unre¬ 
corded genera and two new ones, as well as a large number of 
undescribed species, exceeding IS. The three genera new to the 
fauna are Rheumatobates and Trepobates (Geridae ) and Martarega 
(Notonectidae) . Appropriate comment will be made on all 
these in the proper place. 
It is my intention to present three papers on this material, 
this being the first, the other two to follow as quickly as may be. 
The paper here given is the work of Dr. E. Bergroth to whom I 
submitted an unrecognized Rheumatobates and another obscure 
Gerrid, which he kindly describes in the following pages. The 
other two papers will be devoted to the Trochalopodous and 
Pagiopodous forms respectively. 
