1878.] HEMIPTERA OF ST. HELENA. 471 



et reflexo pracipue ad basin, margine interior -e pone apicem scutelli 

 recto, margini elytri alterius haud incumbent e ; (membrana alceque 

 desunt ;) pedibus modicis, tibiis ad apicem subincrassatis ; tarso- 

 rum articulo 1° brevi, articulo ultimo longissimo. 

 <3 $ . Long 3-5, lat. (pone medium) 2-3 m. m. 

 Hab. in editioribus insulse, juxta "Diana's Peak." 

 The absence of tbe membrane prevents me referring this to 

 any of the sections given by Dr. Stal in his ' Enumeratio.' It 

 may perhaps belong to a new genus ; but as it has all the facies 

 of a Salda, I have placed it in that genus. 



S. aberrans is very variable in the intensity of the brown mark- 

 ings. Frequently the corium is more or less of a rich fulvous 

 brown with anastomosing black lines ; the whitish spots also vary 

 in intensity. There is, moreover, a considerable range of varia- 

 tion in the size of the animal. 



20. IsSUS COLEOPTRATUS, F. 



Bab. intermedis insulse, ad "Plantation." 



A common European species, and doubtless introduced into St. 

 Helena. 



Liburnia, StS.1. 



Ilburnia, subgen. nov. 



Antennarum articulus primus articulo secundo cequilongus vel paullo 

 longior. Tibia postica tarso postico parte quarta longior. 



21. Liburnia (Ilburnia) ignobilis, sp. n. 



L. testaceo-brunnea ; fronte distincte, clypeo, pronoto scutelloque 

 obsolete (carinis exceptis), sterni maculis nonnullis abdomineque 

 plus minus brunneis ; dorso abdominis utrinque vitta longitu- 

 dinali pallida, in segmentis 1° ad apicem, 2° et 3° ad basin distinc- 

 tiore, et in segmentis 1°, 4° , 5°, 6°que interne magis, externe 

 minus brunneo-marginata ; connexivo brunneo, angulis exterioribus 

 apicalibus pallidis ; tarsorum unguiculis piceo-nigris ; elytris 

 subhyalinis, concoloribus ,vix dimidium abdominis tegentibus; oculis 

 subrufis ; capite desuper viso et pronoto longitudine subcequali6us, 

 illo inter oculos breviter prominulo, vertice singula oculo subaqui- 

 lato ; carinis omnibus discretis ; fronte longa, deorsum dilatata, 

 carina centrali ad verticem brevissime furcata ; clypei carina 

 centrali obsoleta ; pronoto scutelloque distinctissime carinatis, 

 illius carinis lateralibus obliquis rectis marginem posticum attin- 

 gentibus ; alis abbreviatis. 

 5 . Long. 5, lat. 2 m. m. 



Habitat in excelsioribus insulae, ad " Diana's Peak." 

 Ilburnia diverges from the characters of Liburnia by the longer 

 first joint of the antennae, and the shorter hind tarsus. In the 

 collection are two other Homoptera belonging to this family : one, 

 which is much broken, is perhaps the S of the above ; and the 

 other seems to be an immature Stiroma ? 



