AMERICAN HEMIFTERA. 71 



PodiNUS niaculiTentris Say. Desc. of new species of N. Am. Insects 

 found in Louisiana by Josepii Barabino, p. 11, 1831. Reprint in 

 Psyche, viii, p. 307, 1899. 



Thi.s is the insect long known as Podisus spinosus Dallas. We 

 are indebted to Dr. Scudder for the re publication of the rare paper 

 by Say in which his description first appeared. It is a common pre- 

 dacious insect over a great part of the United States and Canada, 

 but becomes less abundant west of the eastern slopes of the Rocky 

 Mountains. Dr. Uhler's western records include California, Colo- 

 rado and Texas ; Prof. Osborn adds Arizona, and I have seen speci- 

 mens from Montana (Cooley), Manitoba (Hanham), and Vancouver 

 Island (Taylor). 



Podisus sereiventris Uhler. 



This species is very close to maculiventrw. The few specimens I 

 have seen have all been smaller, more reddish in color, and have the 

 humeri less acute and produced. 1 possess specimens from Van- 

 couver Island (Taylor), and Kalispell, Montana (Wickham), and 

 Mrs. Slosson has taken it at Franconia, New Hampshire. Mr. 

 Kirkland reports this as " by far the most common representative of 

 the genus" in Massachusetts, but his description seems to refer to 

 the form given here as maculiventris. A study of the type is greatly 

 needed. 



Podi»$us modestus DallHs. 



Couimou throughout the northeastern United States and Canada, 

 and extends westward to Manitoba (Hanham), Dakota, Nebraska, 

 Colorado, Montana (Cooley), Vancouver Island (Taylor) and Mex 

 ico. The small size, pale colors and short ventral spine will distin- 

 guish this species from maculiventris. 1 would differentiate it from 

 sereiventris by its smaller- size, narrow and more depressed form, 

 paler colors and the shorter second joint of the antenna?. Kirkland 

 adds the shorter ventral spine, but as I identify .semt'en^ri-s this spine 

 is even shorter than in modestus. 



Podi!>iU!$ placi<liis Uhler. Am. Ent., ii, p. 203, 1870; Can. Ent., xxix, 

 p. 115, 1897. 



Omitted from the Lethierry and Severin Catalogue. An inter 

 esting and distinct species that has been recorded from Canada, 

 Massachusetts, New York, Michigan and Colorado by Kirkland, 

 and from Iowa by Osborn. The rounded humeri, rectilinear latero- 

 anterior margins of the proJiotum, immaculate membrane, and long 



TEANS. AM. ENT. SOC, XXX. MARCH, 1904. 



