V( i889. n 'l PROCEEDINGS OF THE NATIONAL MUSEUM. 57 



Vertex triangular, about as wide as the smaller diameter of the eyes; 

 the margins but gently raised, furnished with a well-defined longitudi- 

 nal carina, which, with two supplementary carinas, extend backward 

 across the occiput to the front edge of the pronotum, where the lateral 

 supplementary ones are more or less interrupted, but appear again 

 upon the disk of the posterior lobe. Face oblique, nearly straight, the 

 frontal costa prominent, evenly widening below where it reaches the 

 clypeus, sulcate at the ocellus ( 9 ) or from the antenna' nearly to the 

 lower end (S); lateral facial carinas minute, straight, antennae with 

 the joints slightly flattened but not eusiform. Pronotum short and 

 rather broad, the median carina very prominent; lateral carinas much 

 curved, the disk provided with a pair of supplementary carina 1 , one on 

 either side and parallel to the median, as mentioned above; anterior 

 edge nearly straight, posterior edge broadly angulate ; posterior im- 

 pressed line back of the middle, faint. Tegmina abortive, furnished 

 with rather prominent nerves, acuminate, not quite ( 9 ) or a little more 

 than half as loug as the abdomen ( 2 ). Posterior femora large, com- 

 pressed, just reaching ( 9 ) or considerably surpassing the tip of the 

 abdomen ( $ ) ; posterior tibiae with the middle terminal claw more than 

 twice as long as the others. 



Very variable in color, like the other species of the genus, varying 

 from dull wood-brown to nearly wholly green. Lateral carina 1 of the 

 pronotum, together with a median lateral line, of bright yellow, also the 

 disk and rather wide lower lateral border of testaceous, a dusky band 

 on disk, just inside of lateral carinas, crossing to outside in middle, and 

 recrossing at hind extremity; also one on middle of sides, somewhat 

 interrupted near the hind margin. Antennas ferruginous or darker. 



Length of body, $ , 9 mm , 9 , 16 mm ; of antennas, $ , 3.5 mm , 9 , 4 mm ; of 

 pronotum, $ , 2.3" 1 " 1 , 9 , 3.1 ,um ; of tegmina, $ , 4.5 mm , 9 , 4.25""" ; of hind 

 femora, S , 7 mm , 9 , 9 mm . 



Hab.— Central Texas (Schaupp); Washington County, Texas (Bru- 

 ner). 



Found quite plentifully in closely grazed pastures during the month 

 of April, when the sexes were taken in coitu. 



Bobtettix gen. no v. 



Comprising insects of medium size, somewhat related to Pedioscertetes 

 Thos., in the form of the pronotum and posterior femora, but otherwise 

 approaching Gomphocerus and Stenobothrus. Beads of medium size, 

 occiput rather short; the eyes moderately prominent, rounded behind, 

 nearly straight in front; vertex broad, nearly horizontal, triangular, 

 shallowly sulcate, with a minute median longitudinal carina, the lateral 

 margins sharp, fastigium very pointed ; face rather oblique, straight, 

 the frontal costa pointed above, broadest between the antenna', plain, 

 fading near the clypeus; lateral facial carinas parallel in the male, gently 

 divergent in the female. Antennas about 20-jointed, slightly flattened 



