20 



allusions to it in the newspapers in the summer of 1901 as being de- 

 structive to cotton in Mexico. Several specimens of Pentatoma ligata 

 were received by this Bureau in August, 1902, from Doctor Duges, 

 taken at San Pedro de la Colonia, Coahuila, Mexico. The labels bear 

 the inscription, '* Injuring cotton." 



DISTRIBUTION. 



The original description of Pentatoma Tigata^ by Thomas Say," was 

 based on a specimen from ^lissouri. Uhler ^ notes that the species 

 occurs in Missouri and Texas, doubting the statement of Fitch ^ that 

 it occurs in Xew York. Herrich-Schaeffer ^^ described Avhat is now 

 generally considered Say's species under the name of Cimex rufo- 

 cinctus, from specimens from Mexico, and Kouchakevitch ^ described 

 specimens from " Russian America," under the name of Cimex rufv- 

 marcjinatus^ which Van Duzee ^ places as a synonym of P. ligata. 

 Smith ^ records P. ligata Say as occurring, though " rare," at Cald- 

 well, N. J. Van Duzee ^ says of the distribution of this species : ^^P. 

 ligata ranges from Mexico northward through the Rocky Mountains 

 to Vancouver Island, and apparently still farther north to Alaska." 



In the collections of the Bureau of Entomology and of the United 

 States National Museum are specimens bearing locality labels, as 

 follows: Pecos, N. M. (Ckll), July IT, 1903; Los Angeles, Cal. (Co- 

 quillett) ; Arizona; San Diego, Texas (Schwarz) ; Abilene, Texas 

 (Morrill), X^v. 8, 1904; Tlahualilo, Dgo., Mexico (Morrill), Sept. 3, 

 1901; San Pedro de la Colonia,. Coahuila, Mexico (Dr. Duges), Inj. 

 cotton, Aug. 12, 1902. 



DESCRIPTION. 



Tlie egg. — Diameter about 0.9 mm. and height about 1.2 mm. There 

 are three distinct parts of the ^.gg which may be termed body or 

 lower part, neck or intermediate part, and the lid or cap. The last- 

 named portion usually remains attached by a hinge after the hatch- 

 ing of the young. The body, the height of which is about two-thirds 



a Description of New Species of Heteropterous Hemiptera of North America, 

 1831. 



& Say's Entomology of North America, Vol. I, p. 315. 



c The following references to P. ligata by Fitch and subsequent writers seem 

 to refer to P. juniperina Linn. : Fitch. Ann. Report N. Y. State Agric. Soc. 

 No. 3, p. 389, No. 4, p. 748 : Packard, Guide, p. 540. 1809 ; Glover, Manuscript 

 Notes from My Journal, p. 30, 1870 ; Provancher, Petite Fauna Entomologique 

 du Canada Hemipteres III, pp. 41-42, 1880; Lintner, Fourth Report State 'Rwi. 

 p. 25, 1888, Tenth Report State Ent., p. 4.32. 1895. 



<^ Wanzewartigen Insecten, p. 94, 1839. 



e Plor. Soc. Ent. Rossicae, Vol. lY, p. 99, 1807. 



f Trans. Am. Ent. Soc, Vol. XXX, p. 41, 1904. 



9 Cat. Ins. N. J., p. 120, 1900. 



