in the British Museum. 431 



Genus Caulonia, Stal. 



|| Ceroys, Sauss. (nee Serv.). 



A series of utterly discordant species have been placed in 

 tins genus, the type of which is Caulonia bifolia, Stal, allied 

 to Ceroys rhabdoid, Westw. ; but I have not sufficient 

 material available to justify me in attempting to break it into 

 natural genera. The genera including spiny Phasmidge 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 Caulonia, and that 

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



Subfam. V. Bactbhiinm. 

 Bacunculida?, pt., and Bacterids, 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 

 Bacunculus, Burm., and Byrne, Calynda, Bostra, and 

 Clonistria of Stal, included by Brunner in his Bacuncalidse, 

 will fall into the present subfamily, and also the following- 

 genera, included by Brunner in his Bacterids : — Phibalosomi y 

 Gray ; Phanocles, Stal ; and Bacteria, Latr. I 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 Bactridium, 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 tibiae beneath, as I have 

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

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

 side in a strong spine. 



Genus Tersomia, no v. 



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

 23-jointed; 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 



