1921] Johnson — Eevieiu of American Species of Palloptera 21 



2. Costal margin interrupted and the brown clonding of the 



anterior cross-vein not connected 3 



Costal margin broad and continuous, covering the anterior cross- 

 vein 4 



3. First and auxiliary veins brown only at the costa, leaving the 



base and middle of the costal margin hyaline; length 4 mm. 



(Fig. 2) jucunda Loew 



First and auxiliary veins included in the brown costal margin; 

 first and basal half of the second costal cell yellow; length 

 7 mm. (Fig 3) alhertensis sp. nov. 



4. Thorax and abdomen largely cinerous-pruinose ; abdominal 



segments setose; four rows of acrosticals; wing pattern re- 

 sembling similis; length 3.5 mm setosa Mel. 



Thorax and abdomen shining yellow, brown of the posterior 

 cross-vein not connected with the costal margin; abdominal 

 segments narrowly margined with black, setfB small; length 

 6 mm. (Fig. 4) , similis Johns. 



Thorax and abdomen yellow, subshining; thorax with two prui- 

 nose subdorsal stripes; brown of the posterior cross-vein 

 connected with the costal margin; abdominal segments with 

 large marginal setae, arising from ])lack spots, .superha Loew. 



Fig. 1. Wings of Palloptera. 



Palloptera subarcuata sp. nov. (Fig. 1). 



P. arcuata Slosson, Ent. E'ews, 1895, vol. 0, p. 7 (determined by 

 Coquillett) and Johnson. Psyche, 1910, vol. 17, p. 233 (not 

 ]\teigen). 

 Male. Front yellow opaque, vertical margin, frontal orlnts, face 



