122 ENTOMOLOGICAL NEWS. [April, 



from the orbital groove. Front and occiput shining metallic blue, the 

 former with a small velvety black spot on either side near the upper orbit. 

 Cheeks, thorax and posterior pleurae metallic silvery, not very shining; 

 anterior pleurae shining black, with a steel-blue reflection. The dorsal 

 surface of the thorax with three longitudinal ferruginous vittse of about 

 equal length, but not reaching to the metallic silvery scutellum. Ground 

 color of the abdomen shining coppery, somewhat dimmed by a layer of 

 whitish dust. Fore coxse blue-black on the outer faces, with a thick patch 

 of golden yellow dust at their bases; femora and tibiae of all the legs dark 

 steel-blue dusted with white; hind tibiae decidedly arcuate. Inner sur- 

 faces of the raptorial fore legs shining black with little dust; tarsi red, 

 except the last joint, which is black, and the considerably swollen first 

 joint of the hind tarsi, which is concolorous with the femora and tibiae. 

 Wings hyaline, with light yellow veins, only the costal vein darker where 

 it rounds the tip of the wing; halteres pale yellow. 



One specimen taken in sweepings near Milwaukee, Wis. , June 

 23, 1895. 



This species is readily distinguished from other described forms 

 by the conspicuous, ferruginous bands on the thorax, and by the 

 peculiar facial markings, al- 

 though in the latter character 

 it resembles O. exculpta Loew 

 from Cuba. The radiating or- 



Fig. i. Face of Ochthera lauta \\. sp. Fig. 2. Hind leg of Ochthera lavta n. sp. 



bital grooves, however, are replaced by ' impressed, rather 

 coarse dots" in the Cuban species, which, besides a marked dif- 

 ference in the color of the front and legs, has the first joint of 

 the hind tarsi " very little swollen." 



