238 P. CAMERON. 



tint; the legs dark blackish brown ; the anterior tarsi and the apical 4 joints ot 

 the 4 posterior rufo-testaceous ; the wings fulvous-hyaline, the nervures fulvous. 

 % . Length 15 mm. 



Antennae black, the scape dark brown. Head smooth and shining ; the cly- 

 peus, lower inner orbits and the labrum yellow ; the clypeus with a few scattered 

 punctures; a smooth, black shining keel leads down from the front ocellus. Man- 

 dibles brownish-black, brighter, more rufous in color in the middle. Thorax 

 thickly covered with long fulvous hair, except on the centre of the median seg- 

 ment, which is bare, smooth and shining and dark brown in color. The hair on 

 the coxse, trochanters, femora and anterior tibire is long, dense and pale fulvous 

 in color ; on the 4th anterior tarsi it is rufous, except on the middle tibia? and base 

 of tarsi iu front, on which it is black ; on the hinder tibise and tarsi it is for the 

 most part black. The 2nd cubital cellule is small, at the bottom about one-fourth 

 of the length of the 3rd ; at the top it is narrowed, the transverse cubital nervures 

 (which are roundly curved) almost touching there. The five, apical dorsal seg- 

 ments have a distinct metallic tint and are shining; the last ventral segment is 

 broadly raised in the middle. The hinder tibise are slightly curved; the outer 

 spur of the hinder calcaria is long, curved, broad at the base, becoming gradually 

 narrowed towards the apex and finely pectinated in the middle ; the inner is 

 longer, narrower at the base and much more stoutly combed throughout; the 

 2nd and 3rd tarsal joints of the posterior legs are dilated and compressed beneath ; 

 they become gradually, roundly wider from the base to the apex ; the labrum is 

 roundly convex and unfurrowed. 



Httb.— Panama (Pacific side), G. F. Mathew. 



Comes near to M. eximia Sin. In being densely clothed all over 

 with long pubescence it resembles M. pubescens Sm., but that is 

 very different otherwise. 



