112 THE CANADIAN ENTOMOLOGIST. 



4. Diexicaiia Shp. — Quite likely identical with nigricans Shp. 



5. boUviana Brnhr. — Apparently without relatives in the nearctic 

 fauna. 



There is another species in the neotropical fauna, described by Sharp 

 under the name Rechoia impressa (Biol. Centr. Amer. Col., I, 2, 1883, 

 228, 229). Rechota cannot be separated from Gnypeta, the only 

 distinguishing feature being the truncation of the meso- and metasternal 

 processes ; in impressa Shp. the middle coxal cavities are open behind, 

 and, in the male, the prothorax is broadly impressed, very much in the 

 same way as in our baltifera and experta. In our fauna laticollis Csy. is 

 somewhat similar in habitus to impressa, but lacks the modification of the 

 male prothorax. 



The pal3sarctic fauna contains the following described forms : 



1. carbonaria Mannh., Free. Brachel., 1830, 75. 



2. cœrulea Sahib., Ins. Fenn., I, 1834, 351. 



3. velata Er., Kaef. Mk. Brdbg., I, 1837, 319. 



4. ripicola Kiesw., Stett. Ent. Ztg., V, 1844, 317. 



5. canaliculata J. Sahib., Sv. Ak. Handl., XVII, 1880, No. 4, 84. 



6. cavicollis J. Sahib., ibid,, 85. 



7. œnescens J. Sahib., ibid., 85. 



1. G. carbonaria Mannh. — Represented in our fauna apparently by 

 G. helenœ Csy. 



2. cœrulea Sahib.— Our atrolucens Csy. may prove to be conspecific 

 with cœrulea; they are, at any rate, very closely related to each other. 



3. velata Er.— Without relatives in our country. 



4. ripicola Kiesw. — Very near to carbonaria Mannh. 



5. canaliculata J. Sahib., and 6. cavicollis J. Sahib.— Quite likely 

 conspecific ; represented in our fauna by the very closely related G. 

 experta Csy. 



7. œfiescejis J. Sahib.— Apparently without close relatives in our fauna. 



There is one species described from the Indo-Oriental fauna, elegans 

 Brnhr., Deutsch. Ent. Ztschr., 1902, 22, from Ceylon; one species from 

 the Australian fauna, fulgida Fvl., Ann. Mus. Civ. Genova, XIII, 1878, 

 583, and two species from the y^thiopian fauna, i. angulicollis Fvl., 

 Rev d'Entom., XXVI, 1907, 58, and 2. pulchricor?iis Fvl., ibid., 58, both 

 from English East Africa. 



