520 PKOCEEDINGS OF THE ACADEMY OF [June, 



apex rounded. Wings eciiial to the tegmina in length. Abdomen with 

 the apex not elevated; siibgenital plate moderately acuminate; supra- 

 anal plate triangular, somewhat convex and with a slight median longi- 

 tudinal depression; cerci simple, styliform, apex rather blunt. Ante- 

 rior and median limbs slender for the general size. Posterior femora 

 robust, inflated basally, distal fourth subequal, scalariform markings 

 obtuse; posterior tibiae slightly shorter than the femora. 



General color blackish, a faint line from the superior margin of the 

 eye, a pregenicular annulus on the posterior femora and a proximal 

 annulus on the posterior tibiae dull ochraccous ; distal half of the pos- 

 terior tibiae flesh-colored, the spines blackish apically; anterior and 

 median limbs brownish sprinkled with black spots; antennae flesh on 

 the basal third, blackish bej^ond. 



Measurements. 



Length of body, 20.5 mm. 



Length of pronotum. 5.7 " 



Greatest dorsal width of pronotum, 3.2 " 



Length of tegmina, 1L2 '' 



Length of posterior femora, 15.5 " 



The type and an inmiature topotypic male are the only specimens 

 examined. I have dedicated this species to the collector, the well- 

 known entomologist, Mr. M. E. Hoag. 



Boopedon gracile n. sp. 



Type: d ; Alta Mira, Tamaulipas. June 25, 1903. (M. E. Hoag.) 

 Quite distinct from any of the previously known species of the genus, 

 and easily recognized by the slender form, fully developed tegmina 

 and wings, and distuict carinae of the fastigium and pronotum. 



Size medium ; form slender. Head of moderate size ; occiput slightly 

 flattened, but elevated somewhat above the pronotum; fastigium 

 slightly broader than long, anteriorly rectangulate, shallowly but dis- 

 tinctly excavated, a disthict and sharp median carina present, margins 

 as distinct as the median carina; inters})ace between the eyes about 

 equal to the width of the fastigium; frontal costa rather broad, slightly 

 constricted below the ocellus, reaching the clypeus, slightly excavated 

 at and for a slight distance below the ocellus; eye ovate, subtruncate 

 anteriorly, longer than the infra-ocular portion of the genae; antennae 

 slightly more than half as long again as the head and pronotum. 

 Pronotum rather narrow, disk about half as long again as the greatest 

 (posterior) width; anterior margin rotundato-truncate, posterior 

 margin obtuse-angulate and with the apex rounded ; metazona slightly 



