J. R. -MALLOCH H 



19. Second costal division snbc(inal in lenf;;th with third 



bisecta new species 

 Second costal division very distinctly longer than third (3:2) 



inaequalis new species 



20. Scutellum with 8 bristles, the basal pair very weak; 3 pairs of dorso- 



centrals present; third vein bent forward; last two tarsal joints of 

 fore pair slightly dilated in male fontinalis Fallon 



21. Scutellum with several setulae on margins of disk in addition to the 8 



marginal bristles which arc unequal in length 



iharginalis new s])ecies 

 Scutellum with only marginal bristles, the disk bare 22 



22. Wings distinctly infuscated along the veins; outer cross vein at least 



half as long as the section of fovu-th vein between the cross vein 



fuscinervis Malloch 



Wings without distinct infuscation along veins; outer cross vein less 



than half as long as the penultimate section of fourth vein 23 



23. Larger species, 3 mm.; third vein distinctly bent forward (fig. 2) arista 



in male about equal in length to width of frons, in female slightly 



longer brtviseta new species 



Smaller species, 1.5 to 2 mm.; third being slightly bent forward; arista 

 in both sexes very much longer than width of frons 



m-nigrum Malloch 

 Leptocera (Limo&ina) mitchelli Malloch 



1913. Leptocera mitchelli Malloch, Proc. Ent. Soc. Washington, xv, 1.3."). 

 There are 4 specimens of this species amongst the material from 

 Cartago, January 1, 1910; same locahty, November 21, 1909; near 

 Tierra Blanca, April 6, 1910; and Juan Vinas, May 3, 1910. 

 Leptocera (Limosina) venalicia Osten Sackeu 

 1858. Borborui^ venalicia Osten Sacken, Cat., 263. 

 There are 3 specimens amongst the material belonging to this 

 species from the following localities: Juan Viiias, March 20, 1910, 

 2 specimens at 3000 feet altitude; 1, Verbena May 16, 1909. 



Leptocera (Limosina) poeciloptera new species (Fig. S.) 



Male. — Black, slightly shining. Frons brown with a gray pollinose 

 stripe on either side and a central stripe of same color which margins the 

 frontal triangle; face and cheeks yellowish brown with distinct white pol- 

 linosity; antennae yellowish. Mesonotum brownish black, with a central 

 grayish pollinose stripe and one on either lateral margin; pleural sutures 

 yellowish. Abdomen shining black. Legs yellow, blackened on mid and 

 hind coxae, all femora except at bases and apices, a broad band on the basal 

 half of and apical fourth of all tibiae, apical tarsal joint darkened. Wings 

 brownish gray, with hj'aline spots arranged as in figure 8. llalteres brown, 

 stalks yellow. 



Frons occupying one-half the width of head, slightly narrowed anteriorly; 



TRANS. AM. ENT. SOC, XL. 



