44 2 ENTOMOLOGICAL NEWS [Dec., '14 



third joint with a flattened lobe on the front side, this lobe nearly as 

 large as the joint (Fig. u) ; middle tarsi longer than their tibiae; 

 hind tarsi about the same length as their libiae, with the first joint 

 nearly two-thirds as long as the second and with a bristle at tip below. 



Tegulae, their cilia, and the halteres yellow. 



Wings hyaline, strongly tinged with yellowish-brown back as far 

 as the fourth and fifth veins, leaving a broad hind margin hyaline ; 

 veins brown; venation typical of the genus; posterior cross-vein one 

 and a half times it length from the wing margin, measured on the 

 fifth vein. 



Described from one male, taken by Mr. H. S. Harbeck, at 

 Barnegat City Junction, New Jersey, on August n, 1910. 



This interesting little species is related to M. aberrans 

 Wheeler, which was also taken in New Jersey, it having the 

 small proboscis and bright metallic coloring of that species. 



Asyndetus harbeckii n. sp. (Plate XVIII, Figs. 12, 13). 



$ . Length 3.25 mm. Face subquadrate, metallic green with thin 

 gray pollen; palpi very small, brown with brown hairs; front metallic 

 green with coppery reflections in the center, shining ; antennae black, 

 third joint brown; second joint long, arcuated, with a bristly basal 

 projection; third joint large, flattened, with short pubescence, rounded 

 below, with two points at apex, attached to the second joint near the 

 center of the upper edge; arista inserted near this central point, dis- 

 tinctly pubescent. (The third joint in the type specimen is larger in 

 the left than in the right antenna ; it is hard to say which is the nor- 

 mal form. Figs. 12 and 13). Orbital cilia short and black above, below 

 forming a rather thick beard of a sordid white color. 



Thorax metallic green with coppery reflections on the front of the 

 dorsum ; pleurae and scutellum more blue-green, the former with brown 

 pollen ; bristles of the thorax large ; acrostichal bristles in an irregular 

 row ; scutellum with a pair of large medial and a pair of small outer 

 bristles. 



First three segments of the abdomen dark bluish-green, the last two 

 more bronze-black ; hairs of the abdomen long, black, fhose at the sides 

 of the base longest; hypopygium small, with small black appendages, 

 bristles at the tip rather large. 



All the coxae black with black hairs and bristles; fore coxae some- 

 what greenish at base; all femora metallic green, shining, ciliate witli 

 bristlelike black hairs below ; fore tibiae and metatarsi yellow, fringed 

 with long blackish hairs on the outer upper edge; last four joints of 

 the fore tarsi short with a few stout hairs at the tip of the fifth joint; 

 middle and hind tarsi black; middle and hind tibiae with two bristles 

 above, inserted at first and second thirds. 



