HANCOCK 113 



along with an open umbrella until coming to a little projection of land upon which a large 

 number had congregated. Finally, upon a sudden rush at the insects they flew up in hun- 

 dreds, to iind that to return to land was impossible; they fell back into the water. It was 

 only necessary now to gather the little swimmers in as they made exquisite use of their 

 dilated paddle-like hind tibi^ in seeking the shore. The aquatic powers of this species 

 are more perfect than those of any other of our local species. There were a few Fctiix gib- 

 dosus in association with Paratetiix. 



PARATETTIX TEXAXUS, SP. N. 



Plate VIII., Figs. 4 and 5. 

 Plate VI., Figs. 2-2a. 



Body rather large. Color variable, sometimes ferruginous 

 variegated with fuscous, paler above; tibia; light obscurely 

 infuscate. Vertex equal in width to one of the eves in the 

 male, in the female a little wider, the front border truncate, 

 advanced nearly as far as the anterior border of the eyes; 

 anteriorly the vertex is a little narrowed, the little obtusely 

 curved antero-lateral carina extend backwards about one third 

 the length of the eyes, and scarcelv subdivergent; viewed 

 from above the vertex depressed, median carina appreciably 

 distinct, scarcely at all projecting in front, on either side 

 canaliculate longitudinally for about two-thirds the length of 

 the eyes, where a transverse ridge defines the limit posteri- 

 orly. Frontal costa in profile scarcely advanced before the 

 eyes, depressed, not appreciably sinuate before the eyes, 

 moderately protuberant opposite the antenns, face below sinu- 

 ate, the distance from the protuberant portion to the anterior 

 inferior border of the eyes is about equal to half the length of 

 the eye; viewed in front the rami of frontal costa rather nar- 

 rowly separated, substraight and but little divergent. 

 Antennae quite slender. Pronotum anteriorly truncate, pos- 

 teriorly long extenuate, passing considerably be_vond the jjos- 

 terior femora, subhorizontal; dorsum rather plainly granulate, 

 between the shoulders lightly convex, in front of the shoulders 

 sparingly constricted; median carina of pronotum low, indis- 

 tinct, sometimes very little compressed anteriorly behind the 

 front margin; humeral angles carinate, obtuse, the anterior 

 carina; hardly distinct, short, parallel. Pllytra rather narrow', 

 acuminate towards the apex; wings long, passing considerably 



