INSECUTOR INSCITI^ MENSTRUUS 39 



hastatus. Professor Reuter himself, in 1899, used Trybom's 

 name hrevistylis, notwithstanding his own statement in the 

 same paper that Uzel "should have adopted for the present 

 species my name bicolor, instead of a new one." 



A female of this species, sent to me several years ago by 

 Professor Reuter, was taken at Pargas, the type locality, and 

 is labeled "Oxythrips bicolor Reuter," in his own handwriting. 

 Oxythrips divisus, new species. 



Female (macropterous). — Length about 1.0 mm. Color 

 bright lemon yellow, with fore wings and antennal segments 

 3-8 gray-brown. 



Head about 1.25 times as wide as median dorsal length, 

 broadest behind eyes, cheeks arcuate ; occiput with a few faint, 

 anastomozing lines ; interocellar bristles alone prominent, pale, 

 about two-thirds as long as eyes ; other bristles minute, pale, 

 inconspicuous. Eyes setose, a little more than 0.4 as long 

 as head, slightly more than half as wide as their interval. 

 Ocelli of posterior pair distinctly behind middle of eyes, their 

 interval nearly twice their distance from anterior ocellus ; pig- 

 ment orange-red. Antennae twice as long as head, of normal 

 form and structure for the genus, except that the sixth seg- 

 ment is divided at the apical fourth of lower surface by a 

 distinct transverse suture ; segment 1 clear pale yellow, lighter 

 than head ; 2 infuscate laterally and apically, about as dark 

 as head ; 3-8 gray-brown, concolorous, except pedicel of 3 

 which is yellow. Mouth cone about attaining base of pro- 

 sternum ; maxillary palpi three-segmented. 



Prothorax about equal in length to head and about one and 

 two-thirds times as wide as long, slightly broader posteriorly, 

 sides slightly rounded ; pronotum smooth ; posterior angles 

 with one pair of prominent pale bristles about equal in length 

 to interocellars. Wings of fore pair nearly uniform gray- 

 brown, darker at tip ; costa with about 22 bristles ; principal 

 vein with a basal group of four bristles, a group of three at 

 the fork, and three spaced evenly in apical three-fifths ; pos- 

 terior vein with a series of about ten, beginning just before 

 the second group of the principal vein, these being closer to- 



