Uhler.] 426 [April 17, 



lytra extending quite to the tip of the abdomen. It was determined 

 by Mr. Say. Dr. Stal's type came from Mexico, and by a compari- 

 son of ours with specimens from that country, I find no specific dif- 

 ferences between them. It is of very rare occurrence in Maryland. 



Hammatocerus Blanch. 

 H. furcis. 



Cimex furcis Drury, Hlust. Exotic Ent., in, 63, pi. 45, fig. 4. Ham- 

 matocerus nycthemerus Illig. Burm. Handb. Ent., u, 236, 1. 



No. 136, Harris' Collection, cf, ?. "Florence, Alab., January and 

 February, 1836, Prof. Hentz." 



This species extends from Florida as far north as the Valley of 

 Virginia. It varies in the amount of red on the hemelytra and legs. 



Prionotus Lap. 

 P. cristatus. 



Cimex cristatus Linn., Cent. Ins. Rar., 16, No. 41. Reduvius no- 

 venarius Say, Amer. Ent., i, pi. 31, fig. 2. Arilus denticulatus West- 

 wood, Drury' s Illust. of Exotic Entom., n, 73. 



No. 76, Harris' Collection. " Pennsylvania, Dr. Pickering." 



This is a common species in many parts of the Middle and South- 

 ern States, extending as far west as Texas. It inhabits small pine 

 trees in the woods, and is occasionally found upon other kinds of 

 trees in the streets of the cities of Baltimore and Washington. 



I have no doubt that this is the true Cimex cristatus Linn., Amoen. 

 Acad., vi, 399, No. 42, and Syst. Nat., 12e ed., tome i, pars 2, p. 

 723, No. 62. His description agrees with alcoholic specimens of 

 our species, while it disagrees with the South American species fig- 

 ured by Drury, and described by Fabricius under the name Redu- 

 vius serratus, Syst. Rhyng., 266, 2. Moreover our species is the one 

 living at Charleston, and other parts of the South, from the former 

 of which places Dr. Garden sent the type of Linnasus' description. 

 As no other species has thus far been found to inhabit South Caro- ' 

 lina, and as the Fabrician species is the one cited by Amyot & Ser- 

 ville and others as synonymous with the Linnean C. cristatus, the 

 evidence is all in favor of the well-known Carolinian species being 

 the true type. Besides the greater number of teeth to the crest of 

 the Brazilian form, as well as the rufous face and rostrum and struc- 

 ture of the fourth and fifth ventral segments abundantly separate 

 that species from the cristatus — novenarius Say. Dr. Stal now con- 

 curs with me in considering this to be the true C. cristatus Linn. 



