86 Psijche [April 



recording trilineata from Dakota, British Columbia, California, 

 Nebraska, Canada, and the region of the Mackenzie River, and 

 stated that trilineata differs from undata "in being larger and 

 more robust and blunt anteriorly, the head entirely black and 

 more coarsely punctate, the venter more widely black, and the 

 femora much more invaded with black." Forty-five years have 

 elapsed since Uhler published these notes, yet no one has given 

 us any further information regarding Kirby's species. 



Among some Hemiptera collected in northern Michigan by 

 Mr. S. Moore of Detroit, recently submitted to me by the 

 Museum of Zoology of the University of Michigan, there is one 

 Specimen which I refer without hesitation to Neottiglossa trili- 

 neata. It agrees well with Kirbj^'s original description, differing 

 only in its slightly smaller size (53/2 mn^- as compared with 3 

 lines) and in the markings of pronotum and scutellum; but these 

 differences are no greater than may be found in a series of N. 

 undata. The specimen before me differs more considerably from 

 Kirby's figures, but these agree neither with each other nor 

 with his description, for in one figure the lateral margins of the 

 pronotum are represented as concavely sinuate, and in the other 

 as straight and concolorous, while the description reads "Pro- 

 thorax, .with the lateral margin, .white." 



Neottiglossa trilineata, as I identify it, differs from A^. undata 

 in its darker coloration anteriorly, in the more obtuse apex of 

 the head, in the more broadly flattened pronotal margins, in 

 antennal structure, and in the form of the ventral abdominal 

 segments. Since the species has been so little understood by 

 American entomologists, I have thought best to give a full des- 

 cription of the specimen before me, together with figures illus- 

 trating some of the characters by which it differs from N. undata- 



Head, black, a little bronzed, somewhat shining, deeply 

 and closely punctate, the punctures somewhat finer on the base 

 of the vertex. Sides of head subparallel for a short distance 

 before the eyes, thence concavely sinuate to a point beyond the 

 middle of the tylus, thence straight and converging at an angle of 

 about 110°; extreme lateral margin very lightly reflexed; apex 



