ETJTARSUS. 



155 



narrow and a little elongated first joint is entirely bare on the 

 upper side, on the lower edge of a rather distinctly reddish-yellow 

 color ; the third joint is short ovate ; the arista is inserted upon 

 the back of the third joint, nearer to its basis than it is the case 

 with Eutarsus aulicus. The face is very narrow immediately 

 below the antennae, and grows more and more so till it becomes 

 cuneiform, so that the large.eyes are entirely contiguous on a large 

 extent. Palpi very small ; proboscis rather small. Thorax steel- 

 blue or violet, little shining, upon the shoulders more blue-green 

 and more densely covered with dust ; the extreme corner of the 

 shoulder brownish. Scutellum of the same color as the upper 

 side of the thorax and with two bristles. Metathorax and pleura? 

 black-green, the latter with whitish dust and a yellow hind mar- 

 gin. Abdomen cylindrical, blackish bronze-colored ; the second 

 segment has near the basis a narrow yellow transverse stripe, 

 which is somewhat dilated near the lateral margin ; and upon the 

 hind corners a large yellow spot ; there are similar spots, but 

 diminishing in size, upon the other segments. The small hypo- 

 pygium is rounded and rather imbedded ; its appendages are 

 short, indistinct lamella. The short hair upon the abdomen is 

 black ; longer black bristles only on the hind margin of the first 

 segment. Coxa? and feet yellow ; fore coxa? with pale hair, at the 

 tip only with a few thin black little bristles ; middle coxa? with a 

 large black spot, which covers about three-quarters of their outer 

 side ; the hind coxa? with a small blackish spot. The hind femora 

 on the upper half of their hind side blackish-brown ; fore and mid- 

 dle tibiae only at the extreme tip slightly infuscated ; the hind 

 tibia? totally black-brown. The fore tibia? are without bristles ; 

 the middle and hind tibia? are but sparsely beset with short bris- 

 tles. Fore and middle- tarsi from the tip of the first joint black- 

 brown, plain ; the first joint of the fore tarsi is somewhat shorter 

 than the following taken together, the first joint of the middle tarsi 

 longer than the others taken together. The hind tarsi are black, 

 very much shorter than the hind tibia? and of a very peculiar struc- 

 ture ; the first joint is remarkably shortened, the second 4^ the 

 size and the third 2^ the size of the first ; the fourth joint has only 

 the length of the first, its end, however, is produced into a stout 

 thorn, so that with it this joint is not much shorter than the third ; 

 the fifth joint is not at the end of the fourth, but attached on its 

 under side at the place where the fourth joint begins to be pointed ; 



