of some species of Chnjsomela, S^'c. 179 



Thorax similar in shape and punctuation to Ch. speciosa ; 

 middle disk sometimes impressed on the basal margin with 

 a short longitudinal fovea (this fovea is ill-defined and often 

 entirely obsolete). Elytra punctured as in the preceding 

 species. 



The $ may be known from the same sex of all the 

 other species of the subsection {nivalis excepted) by the 

 form of the anal segment ; from the latter insect the narroAv 

 terminal joint of the maxillary palpje, together with the 

 longer basal joint of the four anterior tarsi, will separate 

 it ; the apex of the anal segment in the S is nearest in 

 shape to speciosa, but the medial lobe is produced and more 

 distinctly angulate. 



Chrysomela hifrons, Fabr. 



Elongata $ , oblongo-elongata, postice paullo ampliata 2 ; 

 thorace tenuiter sed distincte punctato, lateribus intra 

 marginem rude foveolato-punctatis, basi et apice excavatis ; 

 elytris sat crebre, subfortiter punctatis, punctis aciculatis ; 

 interspatiis nitidis, leviter rugulosis ; palporum maxil- 

 larium articulo ultimo quani penultimo latiori, late 

 truncate. 



Mas. — TarsoriLm anticorum articulo basali semiovato ; 

 illis tarsorum posteriorum quatuor longioribus, semi- 

 elongato - ovatis ; abdominis segmento ultimo bisinnato, 

 lobo intermedio paullo producto, angulato ; telo sat elon- 

 gato, curvato, apice non deflexo, lateribus parallelis, ad 

 apicem oblique convergentibus, apice antrorsum pro- 

 longato, anguste cuneiformi, apice ipso obtuso. 



Foem. — Abdominis segmento ultimo subangulato, apice 

 extremo obtuso. 



A. Supra la3te cuprea, subtus cyanea. 



Ch. bifrons, Fabr. Ent. Syst. i. p. 314; Syst. 

 El. i. p. 432. 



B. Viridi-asnea, subtus virldi-cyanea, thoracis basi ely- 



trorumque sutura vittaque discoidali cyaneis. 

 CJi. vittixjera, Suff'r. Mon. p. 1G6. 



C. Viridi-metallica, reneo tincta. 



Cli. cenescens, Suffr. (?) 1. c. p. IGl. 



D. Metallico-purpurca. 



Cli. luctaosa, var. (?) 

 Long. 4 — 5^ lines. 



Hab. — Italian Alps, Pyrenees, A.; Swiss Alps, B., C. 

 and D. 



