1876.] 293 [Scudder. 



CYLINDROGASTER. 



1855. Stal, Ofv. K. Vet. Ak. Fori., 350: establishes this genus 



upon the new species gracilis (from Brazil). 

 1858. Stal, Eug. Eesa, 306: places this genus under Diplatys Serv. 

 This, as pointed out by Dohrn, in his Monograph, is certainly 

 a mistake, Diplatys differing from Cylindrogaster in important par- 

 ticulars; Dohrn describes other species, and I have called atten- 

 tion in a previous paper to the characters of the female, hitherto 

 unknown. The genus has never been found outside the limits of 

 Brazil. This generic name has since been used in other groups of 

 animals. 



DIPLATYS. 



1831. Serv., Ann. Sc. [Nat., xxn, 33: proposes this name for 

 macrocephala Pal.-Beauv., which is therefore the type. 

 It has not since been used except for the same species by Serville 

 in his later work (Orthopteres) and by Stal, erroneously (see Cylin- 

 drogaster). Dohrn mentions it only to say that he believes he has 

 seen a very poor specimen of the species, and promises further par- 

 ticulars which are not given. The species comes from W. Africa. 



ECHINOSOMA. 



1839. Serv., Orth., 34: founded upon the single species afra Pal.- 

 Beauv. 

 Dohrn has since added several species. They all come from 

 the tropics of the Old World, including northern Australia. Sem- 

 per has since used this name for a group of Echinoderms. 



FORCINELLA* 



1862. Dohrn, Stett. Ent. Zeit., xxiii, 226: establishes this genus in 

 describing the species azteca (from Mexico), but directly speci- 

 fies For/, maritima Gene as the type. Notwithstanding this, 

 while retaining Forcinella in his later Monograph, he transfers 

 maritima to a new genus Brachylabis! Both of these names, 

 however, fall before the earlier Anisolabis (q. v.). Forcinella 

 is not included by Marschall in his Nomenclator Zoologicus. 



