19-4 DESCRIPTIONS OF NEW SPECIES. 



very feebly elevated tubercles, 11 -jointed, sparsely fringed with 

 long hairs, scape stouter, cylindrical, as long as 3d joint, 2d joint 

 small, 4th about one-third shorter than the 3d, 5th and following 

 about equal to the 3d, gradually thinner, 11th not at all divided. 



Prothorax rounded, punctuation of sides finer and denser than 

 on the disk, base and apex nearly truncate ; scutellum trans- 

 verse ; elytra parallel, rounded at tip, humeri nearly rectangular 

 rounded, sides perpendicularly deflexed, lateral margin distinct, 

 epipleurae narrow, well defined, extending to the sutural tip. 



Presternum not wide between the coxae, which are small, not 

 prominent, cavities angulated, closed behind ; middle coxal 

 cavities widely open externally, mesosternum wide, truncate be- 

 hind ; episterna of metathorax pointed behind, epimera prolonged 

 to meet the ventral segments, of which the 1st is longer, and the 

 others equal, the 5th subtruncate (%). Legs slender, thighs 

 pedunculate and clubbed, tibial spurs smail; tarsi broad, 1st joint 

 of hind pair one-half longer than the 2d. 



This tribe has affinities with the Callidiini, but differs not only 

 by the shorter 2d joint of antennas, but by the front coxae being 

 inclosed behind, and from all other tribes by the epipleurae 

 extending in equal width, and horizontally inflexed from base to 

 tip. 



513. II. marginata. Nigra opaca, dense punctata, brevissime albo- 

 pubescens, prothorace rotundato latitudine paulo breviore, inaigine 

 basali apicalique, vittisque indistinctis tribus rubris ; elytris margine 

 basali lateralique usque ad suturam rubro, macula elongata laterali 

 pone humeros nigra. Long. 9 mm. 



One male, Marin County, California, Mr. Edwards. The late- 

 ral spot is in the red margin, and reaches from the base for one- 

 fifth the length of the elytra, extending also upon the epipleurae. 



514. H. Helena. Lsete coccinnea opaca, subtiliter pubescens, pro- 

 thorace confertim baud profunda punctato, guttis duabus nigris ornato ; 

 elytris obsolete sed grosse punctatis. gnttis utrinque tribus nigris orna- 

 tis, lma submargiuali pone basin, 2nda subsuturali ante medium, 3ia 

 discoidali pone medium ; ore anteunis, pedibus, trunco, abdomineque 

 nigris. Long. 8 mm. 



Mariposa, California ; for this lovely little species I am 

 indebted to Mr. Thevenet, of Paris; it was collected by his 

 brother, Dr. Thevenet, now living in California. The scarlet 



