42 Ball — Xrjr Genera and Sperirs of ff^xidar {Fidgorulae). 



as the width of an eye. The anterior margin of vertex broadly triangularly 

 emarginate, posterior margin deeply roundingly cmarginate. Front nearly 

 horizontal, Ijroad, convex below, slightly narrowing above to just before 

 the apex where it expands into the horns. Median carina distinct and 

 extending onto vertex. Clypeus strongly inflated. 



Pronotum long on tlie median line, very narrow behind the eyes, median 

 carina distinct, mesonotuni tricarinate. Elytra l)rachypterous, oval, 

 corium with three ijrincipal veins and irregular reticulations. Abdomen 

 with the exposed segments strongly tubercularly elevated. I^gs as in 

 Danepteryx, posterior tibia with a single spine. ■ 



Type of the genus 0. cornida. 



Osbornia cornuta sp. nov. 



Superficially resembling Peltonotellus histrlonicus somewhat, smaller 

 than Danppteryx. A small brownish insect with abbreviated ashy gray 

 elytra and acute outer augles to the vertex. Length, •"> mm. 



Vertex twice wider than its length on lateral carinae. Four times wider 

 than its median length. Lateral carinae distinct, elevated, meeting the 

 lateral carinae of front in an acutely produced ear-like angle or horn. 

 Between these horns the vertex is triangularly emarginate anteriorly. 

 Front horizontal, one-third wider than its median lengtli, margins nearly 

 parallel, slightly constricted just beneath the lateral iiorns. Clypeus large, 

 strongly inflated. Elytra abbreviate, roundingly truncate, usually slightly 

 separated by the elevated abdomen. The last four abdominal segments 

 with distinct tul)erculate, median elevations. 



Color. — Quite variable, usually dark brown with the ground color of the 

 elytra and some stripes on the abdomen light. Front brown, the lateral 

 carinae, a row of dots just inside these and a narrow crescent above the 

 clypeus pale. Clypeus tawny or orange. Vertex brown, its carinae pale. 

 Elytra ashy gray with the reticulate nervures brown, especially around 

 the margins. Abdomen I)rown with five rows of irregular spots. Pale 

 specimens are sometimes almost straw color with the clypeus and the 

 tubercles on the abdominal segments reddish orange. 



Described from twelve examples from St. (xeorge, Utah, and Mojave, 

 California. Collected by the author. 



Naso melichari sp. nov. 



Closely resembling robertsoni in size and form. Smaller with the cephalic 

 process less inflated at the apex. Pitchy 1)lack without markings. Lengtli, 

 3.75 mm. 



Vertex sliort tr;insverse, sharply separated from the front l>y a distinct 

 carina. Front broad at base, broader than in fitchi, tapering gradually into 

 a long })()inted snout as seen from al)Ove. The lateral carinae expanded 

 just before the eyes, then contracted near the middle of the process, ff)rm- 

 ing a somewhat diamond-shaped conipartmcnt, lieyond this regularly 

 narrowing to the apex. Median carina obscure on the disc, becoming 

 prominent almost foliaceons around the I'xtremity. As seen from the side 



