44 



APPENDIX. 



Liparthrum nigrescens, n. sp. 



L. cylindricum, nitidiusculum, nigrum elytris (proesertim postice) 

 picescentioribus, pilis subdemissis pallidioribus parce vestitum; 

 prothorace alutaceo et granulis sat grossis parce irrorato, antice 

 tuberculis paulo majoribus (sed minutis) adsperso ; elytris levis- 

 sime lateque subseriatim punctatis (punctis inter se valde remotis) 

 ac paulo rugulosis ; antennis tarsisque saturate testaceis ; femo- 

 ribus tibiisque piceis. Long. corp. lin. | -|. 



Liparthrum bituberculatum. Woll., Cat. Can. Col. [nee Ins. Mad. 1854] 

 265 (1864). 



Habitat Teneriffam, in locis editioribus rarissimum. 



Obs. L. bituberculato Maderensi certe distinctum, differt corpore 

 subangustiore nitidiore obscuriore pilisque longioribus graciliori- 

 bus ac minus erectis vestito, prothorace alutaceo granulisque sat 

 magnis parce adsperso, elytris postice gradatim picescentiori- 

 bus ac levius subseriatim punctatis (punctis inter se rnulto magis 

 remotis). 



In my Canarian Catalogue I regarded this Liparthrum as conspe- 

 cific with the L. bituberculatum of Madeira, but the inspection of 

 further material obtained subsequently by the Messrs. Crotch has 

 convinced me that it cannot be referred to that species. And this 

 is the more evident through the fact of its being extremely distinct 

 from the L. curium, whereas I am far from satisfied that the bitu- 

 berculatum is in reality more than a rather large and dark state of 

 the latter. The L. nigrescens seems to differ from the bituberculatum 

 (and therefore a fortiori, from the curtum) in being relatively a little 

 narrower, darker, and more shining ; in its pubescence being longer, 

 finer (or less setiform), and less erect ; in its prothorax being beset 

 with larger granules; and in its elytral striaa being more lightly 

 impressed, and more distantly punctured the punctures being ex- 

 tremely remote from each other. 



Liparthrum bicaudatum, n. sp. 



L. breviter subcylindricum, piceo- vel fusco-nigrum et setis brevibus 

 crassis rigidis griseis (in elytris seriatim) obsitum ; prothorace 

 leviter vix subruguloso sed antice inarmato ; elytris grosse striato- 

 punctatis (punctis magnis), interstitiis alternis leviter sed secundo 

 (a sutura) multo magis elevatis, hoc sc. valde costato et postice 

 gradatim in nodum maximum crassum retrorsus producto ; tibiis 

 omnibus (etiam anticis) versus apicem externum circa 4-spinulosis. 

 Long. corp. lin. |-. 



Habitat Gomeram, in ramulis Euphorbiarum (nisi fallor balsamiferce, 

 sed forsan rcyis-Jubce) a W. D. Crotch copiose repertum. 



