544 CALIFORNIA ACADEMY OF SCIENCES, 



Hedysomus Forster. 



10. Hedysomus quadriceps sp. n. 



? . — Length 9 mm. ; ovipositor a little longer than the 

 abdomen. Black, with the middle lobe of the mesono- 

 tum, the metathorax and the abdomen red. 



Head quadrate, polished, the face below antennse rugu- 

 lose, the clypeus fimbriate; mandibles broad without teeth 

 within. 



Antennae longer than the body, the scape large, stout, 

 thicker and longer than the pedicel and first joint of flagel- 

 lum; the fir^t joint of the flagellum is twice as long as 

 the pedicel. The thorax, except the metanotum is smooth 

 and polished, the metanotum being reticulate with large, 

 coarse punctures. The anterior wings have the median 

 and submedian cells of an equal length, with the second 

 abcissa of the radius twice as long as the first; hind 

 wings with the radial cell divided b}" a cross-vein. Hind 

 femora, short, much swollen. 



Abdomen much wider than the thorax, the first and 

 second segments irregularly longitudinally striated, the 

 second being divided into three parts by a semicircular 

 grooved furrow. 



Described from one $ specimen from San Jose del 

 Cabo. 



This genus closely resembles Doryctes, but the relative 

 lengths of the three basal joints of antennae, basal cells of 

 anterior wings, and the characteristics of the abdomen, as 

 pointed oiit by Forster, readily separate it. 



HoRMius Nees. 



11. HoRMius albipes sp. n. 



$' . — Length 2 mm.; ovipositor very short. Ferrugin- 

 ous; stemmaticum, lobes of mesonotum, scutellum, me- 

 tanotum and first segment of abdomen dusky or black; 



