16 Psyche [February 



it is strongly tapering to the tip, apical margin of last dorsal segment obtusan- 

 gularly rounded, the ventral sutures almost straight, the spiracles situated 

 before the middle of the segments, the female dorsal genital segment sloping. 

 Fore coxae half as long again as the head, slightly tapering toward the apex, 

 trochanters unarmed, femora a little longer than the head and pronotum 

 together, except near base and apex armed beneath with two rows of mingled 

 spinules and bristles, the outer row with some larger spines intermixed, the 

 inner row rather broadly interrupted in the basal half, tibiaj and tarsi together 

 considerably shorter than the femora, the tibiae curved, reaching beyond the 

 middle of the femora, finely crenulate beneath and with a rather long densely 

 setose depression above in the apical half, tarsi flexible, four times shorter 

 than the tibiae, three jointed, the suture between the two first joints very 

 oblique, first joint a little shorter than the two other together, third joint 

 longer than second with two closely approximate obtusely dentate claws of 

 subequal length. Middle femora slightly overreaching the apex of the 

 abdomen, shorter than the tibiae. Hind femora reaching far beyond the apex 

 of the abdomen, tibiae much longer than the femora and than the body. 



Belongs to the Division Stenolsemaria. Among the American 

 genera this remarkable genus comes nearest to Westermannias 

 Kirk, and Lutevopsis Champ., but it is more allied to the Old World 

 genus Myiophanes Rent. 



Myiagreutes praecellens sp. nov. 



Above dull, beneath slightly shining; black, with the following ochraceous 

 markings: a round spot on either side just before and behind the transverse 

 furrow of the head, the base of the head, the apical and basal margin of the 

 pronotum including all the spines, two oblique streaks, one behind the other, 

 on either side of the basal part of the pronotal fore lobe, a round antero- 

 lateral spot on either side, two apical anteriorly fused longitudinal median 

 bands and two narrower more distant longitudinal basal bands of the pronotal 

 hind lobe, the posterior margin of the propleura (interrupted near the middle) 

 and of the mesopleura, the acetabula, the elevated median part and the apical 

 margin of the scutellum, the apical spine of the postscutellum, the base of 

 the corium interiorly prolonged backward a little beyond the postscutellum, 

 the broad margins of the interior branch of the inner corial and of the apical 

 corial vein (including these veins themselves), a fascia running from the 

 inner part of the apical margin of the corium obliquely forward to the costal 

 margin, the basal half and the apex of the clavus, a posterior U- shaped figure 

 in the exterior basal cell of the membrane anteriorly fused with more obscure 

 indefinite spots of the same color, the inner apical cell (except the free ramose 

 central vein) and two longitudinal bands in the outer apical cell with its 

 central vein, a subquadrate basal spot to the connexival segments above and 

 beneath, the spiracles, two rather broadly separated basal quadrangular spots 

 to the ventral segments, a narrow sublateral band, interrupted at the basal 



