1871 -j 109 [Uhler. 



wider than long, the posterior lobe large, and extending back in the 

 form of a broad triangle with the sides nearly straight and the tip 

 a little rounded; the lateral margins, including the humeri, forming 

 high, broad ridges. Anterior legs stout, the tibia? a little curved at 

 tip, with the process small and almost in continuous contact with the 

 surface on which it stands; the basal joint of tarsi about one-fourth 

 the length of the second, the second having the unguicule placed 

 about one-third from the tip. Intermediate femora about two-thirds 

 the length of the posterior, the tibia not quite as long as the pos- 

 terior femur and tibia conjoined; the tarsus equal in length 

 to the posterior tibia and tarsus conjoined. Corium of hemelytra 

 short, with two elongated cells occupying nearly the whole width; 

 membrane more than twice as long as the corium, the looped ner- 

 vule running parallel to the entire margin. 

 M. hesperius, n. sp. 



Opaque, velvety blue- or brown -black, densely pubescent. Head 

 robust, convex, brown, at base and each side of it rufous or orange, 

 minutely, densely pubescent, the face blackish. Rostrum black, 

 beneath shining, above densely greyish pubescent, at base more or 

 less orange. Antenna? black, pubescent, the basal one-fourth of the 

 basal joint orange. Pronotum very small in the unwmged specimens, 

 and less than one-half as long as wide, having the anterior margin a 

 little concave, the surface finely, closely pubescent, the middle line 

 broadly depressed, yellow, invaded by gray or whitish lead color, 

 which expands in running back and covers the whole width of the 

 tergum to its tip, omitting only a few black streaks on the disks and 

 margins of the segments. The whole pectus, venter and two spots 

 on the pleura lead color with a sericeous gloss. 



The winged form has the pronotum blackish -brown, densely pubes- 

 cent, the middle of the anterior lobe broadly depressed, covered by 

 an orange spot, but lacking the bluish stripe. Coxa? yellow beneath, 

 legs brownish-black, the anterior pair yellow at base, the yellow color 

 continued further on the under side. Sternum blackish, each side of 

 it yellowish. Hemelytra dark brown, with a faint, paler streak on 

 the median suture, at base and on the costal margin pubescent. 

 Venter cinereous, the disk of the penultimate and base of the last 

 segment yellow. 



Length to tip of hemelytra 5 millims. Extreme width of meso- 

 thorax 2 millims. Unwinged, length, 3-4 millims. Mesothoracic 

 width If 2 1 millims. 



No. 29. Harris Collection. 



