290 



The southern specimens are usually larger and more clearly marked 

 with the yellow and red. Those from Lower California seem to lack the 

 pronotal red band. 



3, T. rugulosa. 



Fentatoma vugulosa, Say, Heterox)t. New Harmony, 7, No. 16. 

 Inhabits Texas (Mr. Belfrage) ; Cape Saint Lucas, Cal. (John Xanthus) } 

 Colorado (B. H. Smith); Cuba (Professor Poey). The specimens from 

 Lower California are a little less robust, and have the lateral angles of 

 the pronotum a little more acute than in those from Colorado. One 

 specimen from Dakota, too much damaged to show its particular 

 features. 



LoxA, Amyot & Serv. 

 L. flavicollis. 



Cimex flavicoUis, Drury, Illiistr. ii, 67, pi. 30, fig. 4. 



Cimex alMcoUis, Fab., Spec. Ins. ii, 347, No. 51. 



Fentatoma viridis, Palisot-BeauT. Ins. Afr. et Araer. Hem. HI, pi. 8, fig. 1. 



Loxa flavicollis, Amyot et Serv., Hemipt. 137, No. 1. 



Loxa virescens, Amyot et Serv., I. c. 137, No. 2. 



Fentatoma albicoUa, H.-Schf., Wanz. Ins. vii, 94 ; StoU, Pnuaises, figs. 198, 193, 200. 



Inhabits South America, the AVest Indies, and Mexico ; but speci" 

 mens have been collected in Texas and jSTew Mexico, which I have had 

 the privilege of examining. They differed in no considerable degree 

 from others brought from Eio and Surinam. They exhibit a certain 

 amount of variation in the length and acuteness of the pronotal serra- 

 tions and lateral angles, which, in the specimens from Eio, are often much 

 prolonged and very acute. . . 



MURGANTIA, St ill. 



M. Mstrionica. 



Sfrachia Mstrionica, Halin, Wanz. Ins. ii, 116, fig. 196. 

 Miirgantia liistrionica, Stal, Enameratio Hamipt. ii, 37, No. 4. 



Inhabits Guatemala, Mexico, Texas, Arizona, Indian Territory, Cali- 

 fornia, Nevada, Colorado, and from Delaware to Florida and Louisiana* 



Various patterns of marking, and colors ranging from yellow to steel- 

 blue, are conspicuously" exhibited in this pretty but unstable and 

 pernicious insect. 



In the Atlantic region, this species seems to be steadily but slowly 

 advancing northward. Its introduction into Maryland has been effected 

 since the late war, and now it is known as far north as the vicinity of 

 the Pennsylvania boundary -line in Delaware. 



In the Mississippi Valley, it appears to be equally common, particu- 

 larly in the States of Illinois and Missouri. 



Aeyelius, Spin. 

 A. alho-punctatus. 



Cimex albojmnciat as, DeGeer., Mem. iii, 331, pi. 34, fig. 6. 

 Cimex gladiator, Fal»., Syst. Ent. 705, No. 43. 

 Fentatoma gladiator, Palisot-Beanv. Ins. Hem. 127, pi. 9, fig. 1. 

 Cimex leucostictus, Gmelin, Syst. Nat. 2148, No. 282. 

 Acanthosoma gladiator, Bnrm., Handb. ii, 359. 

 Acanthosoma luteicornis, Westw., in Hope Catal. i, 30. 



Arvelius gladiator, Spiuola, Essai Hemipt. 346 ; H.-Schf., Wanz. Ins. v, 104, fig. 557. 

 Arvelius albo-jnmctatits, Amyot et Serv., Hist. Hem. 150. 



Fentatoma {Arvelius) albopunctata, Guer., La Sagra's Hist, de Cuba, Ins. 374 ; Stoll, 

 Punaises, fig. 12. 



Inhabits South America, "West Indies, Mexico, Texas, Cape Saint 

 Lucas, California, Arizona, and Florida. 



