J. R. MALLOCH 9 



the same sort of situations as fo7itinalis Fall., which 1 find amongst 

 the material before me. It is possibly due to the fact that ferru- 

 ginata is a carrion frequenting species, or at times found on manure 

 piles, that it does not occur in this collection, as ver}^ probably 

 no collecting was done, or possible in such conditions. The num- 

 ber of species with maculated wings is evidentl}- an indication of 

 the presence of a large number of this form in tropical parts which 

 are not represented in the temperate zones. I have seen two 

 other species with wings maculated, viz.: piduratus Mall., from 

 Philippine Islands, and mijrmecophila K. and M. from ants' nests 

 in Australia. 



The Phoridae present no peculiarities, nor do the Agromyzidae 

 that I have seen, both being similar to the North American forms 

 in general appearance. 



I have given tables of the species where the number present 

 justifies this course. 



BORBORIDAE 



Table of Species in Leptocera 



1. Disk of scutellum with short setulae mitchelli Malloch 



Disk of scutellum, bare 2 



2. Wings with brown spots, either on the veins or on the disk 3 



Wings clear, or with faint indications of fuscous suffusion along veins, 



but never distinctly spotted 7 



3. Large species, 2 mm. or more, frons and mesonotum with whitish 



poUinose spots at bases of bristles; wings clear on disk, the spots 

 confined to veins and distributed as follows: one at beyond middle 

 of first vein, one at apex of second vein, one on base of second and 

 third veins, and another, generally less distinct, at apex of third 



vein venalicia Oston Sacken 



Smaller species, 1 to 1.75 mm.; mesonotum sometimes vittato but never 

 punctate; wings with distinct spots on disk 4 



4. Mesonotum yellow, browned posteriorly; legs yellow, bases of femora 



browned (fig. 11) meridionalis new species 



Mesonotum black, with grayish white vittae; legs yellow, tibiae with 

 brown rings 5 



5. ^lesonotum with 1 pair of dorso-central bristles, apex of wings clear 



(fig. 7) vittata new species 



Mesonotum with two pairs of dorso-eentrals B 



0. Anterior pair of dorso-centrals very long and strong; apex of wing in- 



f uscated (fig. 8) poeciloptera new species 



Anterior pair of dorso-centrals weak; ai)ex of wing clear (fig. 10) 



monticola now species 



TRANS. AM. ENT. SOC, XL. 



