Genus Arribalzagia. 83 
distant from the mid; the supernumerary is just beneath the 
Junction of the sub-costal and costal; the black wing scales from 
two pronounced black patches on the costa, and a third less 

b. 
Fig. 51. 
a, Arribalzagia maculipes. 9. n. sp. 
b, Cycloleppteron mediopunciatus. 2. MN.Sp. 
prominent one may be noticed; halteres with bright brown 
stems and jet black knobs with some grey scales. 
Length—6°5 mm. 
Habitat.—Sao Paulo, Brazil (Lutz) ; Trinidad (Urich). 
Observations.— Described from a single 9 sent me by Dr. 
Lutz as a new Cycloleppteron by mistake. It is a very marked 
and beautiful species, with much banded and speckled mid and 
hind legs. The wings are very dark, and the large number of 
minute yellow costal spots is very characteristic. 
I cannot make out the structure of the clypeus with any 
degree of certainty, but from what I can see in this single 
specimen it is of very peculiar form. | 
It bears a great resemblance to Cycloleppicron mediopunctatus, 
but can be told by the absence of inflated wing scales and the 
different positions of the cross-veins and fork-cells (fig. 37). It 
stings after sunset, and is most common in the littoral. It is 
almost certainly a malaria bearer, writes Dr. Lutz. A specimen 
was sent also whilst this volume was in the press from Trinidad, 
and others from Brazil. 
G 2 
