in the British Museum. 431 



Genus Caulonia, Stal. 



II Cei'oys, Sanss. (nee Serv.)- 



A series of utterly discordant species have been placed in 

 this genus, the type of which is Caulonia hlfolia^ Stal, allied 

 to Ceroys rhahdota, Westvv. ; but I have not sufficient 

 material available to justify me in attempting to break it into 

 natural genera. The genera including spiny Phasmidro are 

 in greater need of revision than any others of the family. 

 However, judging by the description^ I think that Paro- 

 brimus, Scudd., is probably allied to Cauloina, and that 

 Ceroys laciniatus, Westw., may be referable to it. 



Subfam. V. Bacteriin^. 



BaciincuUdcs, pt., aud Bacteridce, pt., Brunner. 



I employ this name provisionally for a series of apterous 

 American genera in which the median segment is either as 

 long- as the metanotum or else, especially in the males, so 

 closely fused with it that no division is visible. The genera 

 Bacuncidus, Barm., and Dyme, Calynda, Bostra, and 

 Clonisiria of Stal, included by Brunner in his Bacunculida3, 

 will fall into the present subfamily, and also the following 

 genera, included by Brunner in his Bacteridte : — Phibalosomij 

 Gray ; Phanoclefi, Stal ; and Bacteria, Latr. 1 include 

 Phibalosoma (and some allied American genera not mentioned 

 by Brunner) in this subfamily, although they have winged 

 males, because they agree too closely with Phanocles and 

 Bacteria to be referred to a distinct family. I also include 

 the genera Bactridlum, Sauss., and Abrachia, Kirb., though 

 they are not very closely allied to the other genera ; but I 

 cannot find a better place for them. Abrachia has no trian- 

 gular spaces at the end of the tibias beneath, as I have 

 erroneously stated, but a very large one at the end of the 

 middle femora, the carinaj of which project at the end on each 

 side in a strong spine. 



Genus Tersomia, no v. 



Antennse only one third of the length of the front femora, 

 23-jointod; scape flattened, twice as long as broad; second 

 joint rather longer than broad, flattened, narrower than the 

 scape, the rest slender, linear ; third joint the longest, three 

 times as long as broad, the fourth scarcely longer than broad, 

 the rest gradually increasing in length to beyond the middle 

 and then gradually shortening to the extremity. Head 



