156 THE UNIVERSITY SCIENCE BULLETIN. 
forms of North America by the genital opercule extending a little under 
the base of the appendages. The ventral segment which precedes the 
genital opercule almost straight on its longitudinal summit, very little 
convex before the extremity. 
“The interocular space convex between the eyes, but without trace of 
tubercle, scarcely wider than one eye. The eyes very slightly transverse. 
San Diego, Cal., coll. Coquillet, U. S. N. M., Washington. 
Ranatra protensa Montd. 1910. 
Montandon Bul. Soe. Sci. Bucarest, XVIII, p. 185. 
“Almost of the same size as R. fusca and R quadridentata; length, 36.5 
mm., of which 12.5 mm. are for the head and pronotum together, and 24 
mm. for the abdomen; appendages quite robust, much shorter than the 
abdomen, 18.8 not altogether 19 mm.; intermediate and posterior femora 
quite long, 16 to 17 mm. (They are spread out at the sides in the speci- 
men examined, but brought back behind the posterior one attain the 
last abdominal suture.) 
“Eyes visibly transverse, as wide as the interocular part which is not 
regularly convex, but very obtusely elevated in the middle, as for the 
base of a tubercle. Cheeks converging in front, fitting most closely at 
the extremity against the tylus, regularly narrowed, not protuberant, 
the tylus slightly surpassing them in front. This character of cheeks 
attenuate and converging in front distinguishes this insect from all other 
North American forms in which the cheeks project, almost diverging at 
the apex of each side of the tylus. 
“Anterior femora quite slender, .but scarcely a fifth as long as their 
coxe, without trace of tooth or sinuosity near the extremity, and with 
the median tooth of the lower inner side very little elevated, obtuse and 
little distinct. The anterior coxe almost as long as the pronotum on the 
side; coxe and femur together scarcely longer than the intermediate or 
posterior femora; anterior tibia very short, scarcely a little more than 
a third of the length of the femur. 
“Metasternal plate a little convex, well prolonged behind where it is 
lost between the posterior coxze with the first abdominal segment which 
resembles in the middle a fissure, narrowed at the extremity of the 
metasternum, all as elevated as the plate. 
“Memes cories,”’ with membrane covering up the suture of the last 
abdominal segment, as in the other American species. Pronotum quite 
dilated in front, not much more dilated behind than in front, feebly 
carinate on the anterior part. The prosternum is hollowed out in all 
its width clear to the middle of its length; the bottom of the hollow is 
flat without groove behind the coxe, the lateral sides elevated, vanishing 
behind. 
“The specimen, unfortunately unique, is pale yellowish ochre; the 
intermediate and posterior femora with some vague clearer annulations.” 
Long Island, New York, U. S. N. M., Washington. 
“This species has a little of the appearance of R. brevicauda Montand. 
of South America, but in this latter the cheeks are projecting; almost 
diverging at the summit of each side of the tylus; the genital opercule 
surpasses sensibly the extremity of the abdomen and the more robust 
appendages are also proportionally shorter; but it has almost the same 
form of vertex; by contrast, the anterior femur has a median tooth indeed 
stronger on the lower inner side and the lower outer side, also has an 
obtuse prominence at the place where the end of the anterior tarsus 
comes when the tibia is folded back against the femur, and farther from 
the end of the femur than the lower inner tooth.” 
SE a a 
