LONGICORNIA. 239 
4, Holonotus minor. (Tab. XVI. figg. 13 ¢, 14 2.) 
Minor, relative angustior; fuligineo-niger, femoribus plus minusve rufis; supra confertim subconfluenter 
punctatus; thorace a medio usque ad apicem valde subrecte angustato, angulis posticis dentiformiter 
productis. 
6. Thorax medio discrete punctatus nitidus, lateribus depressis utrinque area elongata minute punctata opaca 
medio fere divisa ; elytra versus apicem rufescentia; femora antica intus apice fulvo-aureo-pilosa. 
2. Thorax totus crebre confluenter punctatus, antice rectius et abruptius angustatus ; elytra nigra. 
Long. lin. ¢ 9. 
Hab. Mexico, Santecomapam (Sal/é). 
Does not essentially differ from H. levithorax either in form or colour. It is, 
however, very much smaller and narrower; the antennz are longer and slender; and 
the thorax, especially in the female, much more strongly narrowed in front. The 
interruption in the septum which (in H. levithorax) divides the opaque patch on the 
sides of the thorax into two areas is probably only accidental. 
XENAMBYX (p. 14). 
Xenambyx laticauda (p. 14). (Tab. XVII. fig. 3.) 
This remarkable form escaped being figured in the former part of the present 
volume. We take advantage of the issue of supplementary plates to supply the 
omission. 
SPONDYLIS (p. 14). 
Spondylis mexicanus (p. 15). (Tab. XVII. fig. 1.) 
To the Mexican locality given, add :—Las Vigas, Jalapa (Hoge), Oaxaca (Sallé). 
We now give a figure of this species. 
CRIOCEPHALUS (p. 15). 
Criocephalus mexicanus (p. 15). 
To the Mexican locality given, add :—Las Vigas (Hége). 
2. Criocephalus asperatus. 
Criocephalus asperatus, Leconte, Col. of Kansas and E. New Mexico, p. 19°. 
Hab. Norra America, Kansas}, Nebraska.—Mexico, Chiapas (Sallé), Jalapa 
( Flohr). 
Mexican specimens agree precisely with others from Nebraska, with which I have 
compared them. 
8. Criocephalus productus. 
Criocephalus productus, Leconte, Journ. Acad. Phil. ser. 2, ii. p. 86°. 
Hab. Nortn America, Oregon.—MeExico (Flohr). 
