56 Bulletin of the Brooklyn Entomological Society Vol. XVI 



ferred to are at or before the middle of the sternite and are in a 

 transverse or diagonal line. 



In Pyrrhocoridse the gentrSi- Largiis (=Euryophthalmus) and 

 Arhaphe agree very closely in the arrangement of the punctures. 

 Both have those on fourth sternite in a straight or almost straight 

 longitudinal series close to spiracle, the anterior one situated close 

 to anterior margin of sternite and the posterior one behind middle 

 of sternite. The genus Stenomacra (marginella H. S.) which is 

 considered as belonging to the same subfamily differs in having 

 the posterior two punctures placed almost transversely at middle 

 of sternite, an arrangement similar to that on fifth, a feature 

 which appears to suggest that the genus is out of place here. 

 Both genera of Pyrrhocorinse known to me agree in having all 

 three punctures on fourth sternite closely placed on an opaque 

 spot near the anterior margin and almost in longitudinal line with 

 the spiracle. 



It is not to be expected that the character here referred to will 

 enable one to formulate a scheme for the classification of tribes 

 or larger categories, but it will I believe be found of value in most 

 families as an additional character for the dififerentiation of these 

 interesting insects. 



There is in the collection of Illinois Natural History Survey a 

 large series of specimens of Aufeius impressicolUs Stal, most of 

 the specimens being from Urbana, Champaign, and Decatur, Illi- 

 nois. These agree in all particulars with Texan specimens taken 

 by Mr. Hart. 



In the same collection there are the following two species: 

 Harmostes prolixus Stal, two specimens, Brownsville, Texas 

 (Hart). This species is new to the United States. Esperanza 

 texana Barber, 3 males, 3 females, Brownsville, Texas (Hart). 



Since sending this paper to the editor I have seen a much more 

 comprehensive one on the same subject by Tullgren in Ento- 

 mologisk Tidskrift, Heft 2, 1918, pages 1 13-132, a copy of which 

 has just come to hand here. As this author considers the sensory 

 or " auditory " hairs to be of very much more importance than 

 previous authors have it is necessary that his data and conclu- 

 sions be seriously considered by hemipterists in this country espe- 

 cially in connection with the major groupings in Heteroptera. 



