INTRODUCTORY REMARKS. 



XXX111 



likely to meet with when investigating those singular shrubs, I have 

 been compelled to admit a few which occur under other circum- 

 stances likewise. These latter, which are not numerous, I have 

 indicated by italics. There are six, however (captured beneath 

 Euphorbia-baTk), which have as yet been taken only once ; and of 

 these, therefore, to which I have prefixed an asterisk, further 

 evidence is required before we can pronounce them to be exclusively 

 Euphorbian*. 



*Carpophilus tersus (C.). 



Europs impressicollis (M., C.). 



duplicatus (C.). 



Lipaspis caulicola (S., C.) 

 *Trogosita recta (C.). 



latens (C.). 



Caulonornus rhizophagoides (C.). 



Lcemophlceus clamcollis (M., C.). 



Xenoscelis deplauatus (C.). 



( 'njptopli ayus fusiformis (C.) . 

 *Metophthalmus exiguus (M.). 



Corticaria maculosa (M., C.). 



Thallestus typhaeoides (C.). 



subellipticus (C.). 



Eubrachium politum (C.). 



ovale (C.). 



Eutriptus putricola (M., C.). 



Teretrius cylindricus (C.). 



Hololepta PeiTaudieri (C.). 



Oryctes prolixus (C.). 



Clerus Paivae (C.). 



Piotes inconstans (C.). 



Xyletinus flavicollis (C.). 



latitans (C.). 



desectus (C.)' 



*Anobium oculatum (C.). 



Aphanarthrum Jubae (C.). 



tuberculatum (C.). 



armatum (C.). 



canescens (C.). 



canariense (C.). 



- pygmaeum (C.). 



- bicinctum (C.). 



- piscatorium (M., C.). 



Aphanarthrum euphorbia? (M.). 



affine (C.). 



glabrum (C.). 



bicolor (M., C.). 



lividum. (C.). 



pusillimi (C.). 



Liparthrum inarmatum (M., C.). 



Lowei (C.). 



curtum (M., C.). 



bicaudatum (C.). 



Triotemnus subretusus (C.). 

 Phloeophagus caulium (C.). 

 Mesoxenus Moniziamis (C.). 

 Caulotrupis subnitidus (M.). 

 Mesites euphorbias (M.). 

 proximus? (C.). 



fusiformis (C.). 



pubipennis (C.). 



Acalles fortunatus (C.). 



cinereus (M.). 



Aylycyderes setifer (C.). 

 Leprornoris gibba (C.). 

 Deucalion oceanicus? (S.). 

 Stenidea annulicornis (C.). 



albida CO.). 



pilosa (C.). 



Ilypophlceus euphorbiae (C.). 



ambiguus? (M.). 



Tenebrio Crotchii (C.). 

 Ditylus concolor (S., C.). 

 Homalota canariensis (C.). 



coriaria (M., C.). 



' subcoriaria (C). 



putrescens (C.). 



* In the above list I have used the letters (M.), (S.), and (C.), to indicate the 

 island-Groups to which the several species pertain. 



