30 DIPTEKA. 



rufous at the base, the extreme tip white, the rest black ; the distal half of the third joint, 

 instead of having the usual lamelliform shape, shows its vane-like, feathery structure 

 more distinctly here than in the other species, and is somewhat curled up at the end. 

 Thorax black, moderately shining, with microscopic punctures and pile ; the following 

 design on the mesonotum is formed by golden-yellow hairs — a border along the anterior 

 end, from one humerus to the other, with a slight interruption in the middle ; a longi- 

 tudinal line starts from that interruption and does not reach beyond the middle of the 

 thorax ; a line on each side, along the mesothoracic suture, not reaching the central 

 longitudinal line ; and a short oblique line in each of the hind corners. The convex portion 

 of the metanotum has a transverse golden fringe ; a similar, but paler and less dense, 

 fringe along the mesopleural suture ; the hairs on the sternum silvery. Abdomen com- 

 paratively short and broad, rather convex ; black, subopaque, its surface microscopically 

 shagreened ; pubescence short, rather dense, in a certain light golden ; a narrow yel- 

 lowish-brown border on each side, of equal breadth, reaching from the second segment 

 to the end of the fifth ; a narrow, transverse, pale yellow, pellucid spot on the incisure 

 between the first and second segments, encroaching on both (this spot has a fringe of 

 golden hairs upon it, and on the ventral side occupies the greater part of both 

 segments). Legs brownish-black ; tarsi yellowish, the tips brown. Wings infuscated 

 along the costa, the brown being bounded by the fifth vein before the discal cell, and 

 by the third vein beyond it ; the apical portion and the posterior margin greyish, but 

 the anal cell, the anterior portion of the auxiliary and spurious cells, and the alula are 

 hyaline ; venation normal. 



A single specimen ; sex doubtful. 



This species differs from its congeners by its stouter appearance; the thorax is 

 shorter and broader ; the scutellum shorter and much less triangular ; the abdomen 

 broad in the middle, attenuated at both ends, convex, comparatively short ; the antennal 

 lamella shows its feathery structure more distinctly here than in the other species ; the 

 eyes are densely pubescent. At the same time the whole organization is that of a 

 Eermetia : the structure of the head, the frontal bump, the facial, beak-like elongation, 

 and the coloration of the front belong to that genus. The coloration of the eyes is very 

 like that of the typical H. illucens. 



4. Hermetia relicta, sp. n., $ . 



Black, with a slight greenish metallic reflection ; abdomen with segments 3-5, and the posterior margin of 

 the second, ferruginous-red, the latter with two reddish-yellow pellucid spots on black ground ; 

 wings uniformly brown ; antennae black, the extreme tip of the style white ; tibiae and tarsi yellowish- 

 white. 



Length about 15 millim. 



Hab. Panama, Bugaba 800 to 1500 feet (Champion). 



Head black, with a strong bluish-green metallic reflection ; the bump below the 

 ocelli pure black ; the convex middle portion of the face, between the base of the 



