378 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. VII. 



black, and which are connected by a faint brownish stain on suture ; 

 the lateral margin behind the middle very slightly infuscate ; the legs 

 entirely pale, the tarsi alone being black. This is the only specimen 

 in which the legs (tarsi excepted) are entirely pale, and in no indi- 

 vidual seen were the legs entirely black; several specimens, however, 

 have the legs black, excepting the apices of femora and tibiae of front 

 legs. This species more commonly has the front and middle legs 

 pale, the outer margin of the femora and tibiae with a linear black 

 marking which extends the entire length of these parts; the hind 

 femora are pale at base, the front and middle tarsi infuscate. The 

 black of the apical portion of posterior femora is very persistent, 

 being present in several otherwise pale legged specimens. The hind 

 femora are rather strongly clavate. 



Mydnocera gorhami sp. nov. (PI. V, fig. 8.) 



General form of hamatica Gorh., but less elongate. Black, 

 subopaque; maxillary palpi, three or four basal joints of antennae, 

 and basal fourth of elytra reddish yellow; elytra violaceous black; 

 scutellum black. Head and thorax very densely but not very 

 coarsely rugosely punctate, the latter with middle of disk at base 

 sparsely punctate ; head including the eyes slightly wider than thorax 

 but slightly narrower than elytra at base ; front rather densely clothed 

 with short, silvery white, shining pubescence; thorax one-fourth 

 wider than long, sides at middle strongly dilated, pubescence short, 

 sparse and inconspicuous. Elytra slightly shorter than abdomen, 

 moderately convergent posteriorly; humeri protuberant; surface 

 coarsely cribrate, punctuation denser and somewhat rugose at apex ; 

 lateral margin posteriorly and apices thickly, not very strongly ser- 

 rate; apices obtusely separately rounded, dehiscent at suture; color 

 violaceous black; basal fourth reddish yellow (the scutellum alone 

 being black), the hind margin of red portion nearly straight; pos- 

 terior femora rather strongly clavate, extending to apex of abdomen. 

 Length 4-5 millim. 



This appears to be the same as the species placed doubtfully as 

 the female of h&matica by Gorham (Biol. Centr.-Amer., in, Pt. 2, 

 p. 172). The writer has seen about thirty specimens from Cuerna- 

 vaca (from which locality Gorham's examples were obtained) which 

 exhibit, as noted under that species, a great deal of variation in color- 

 ation and which, having the red at base of elytra prolonged posteriorly, 

 as well as possessing the other and more important characters at- 

 tributed to the supposed male, he therefore refers to hcematica. 



