This singular insect, which I at first thought belonged to the 

 Genus Dibolia of Latreille, and to which I still imagine it is 

 related, has trophi that considerably resemble those of Cassida 

 (pi. 127. )j which is one proof, amongst many others, of a more 

 intimate (connexion between the Cassididae and the Galeru- 

 cidae, than is admitted, I believe, by some naturalists ; and 

 although M. Latreille has given an outline of these affinities 

 in his CoJisidcrations generales, he has returned to the ar- 

 rangement of his Genera Criistaceoru?n in the ' Families Natu- 

 relles.' Taking into consideration foreign forms, it appears to 

 me that the Cassidse and Halticae are beautifully connected by 

 the Galerucae ; and for this reason I adopted the arrangement 

 of the Baron Dejean in my Guide. 



Cardiapus seems to form the connecting link of the Halticae 

 and Cryptocephali, having the thick posterior thighs of the 

 former group with the cylindrical outline of the latter, the 

 thorax projecting over the head, and the antennae rather long 

 and slender. On consulting Gyllenhal's ' Insccta Suecica^ 1 

 learn that the Haltica occultans (which is the type of Dibolia, 

 I believe,) has appendages to the posterior tibiae; and it seems 

 to want the two basal channels on the thorax, which are evi- 

 dent in our genus, and so characteristic of a great portion of 

 the Halticae. 



The following is a description of our species. 



C. Mathewsii, Curt. Brit. Ent. pi. 435. 



Black, shining, deep blue above; head sparingly punc- 

 tured : eyes and antennae black, the latter with the tip of 

 the basal joint, and the whole of the 2nd, 3rd, and 4th, 

 ochreous : thorax with a faint green tint firmly and thickly 

 punctured on the sides, nearly free from punctures be- 

 fore : elytra with 1 strongly punctured striae on each, 

 the sutural one furcate at the l)ase : legs bright ochre, 

 thighs black, tips of tarsi fuscous. Sometimes the upper 

 side of the insect is brassy green. 

 The first specimens I saw of this little beetle, were taken by 

 Mr. A. Mathews on a Beech-tree in Kent, in June, and others 

 were last year captured by the Rev. Samuel Hey at Monsall 

 Dale in Derbyshire ; they were found in the thick moss that 

 grows on the sides of the rocks. To the former gentleman 

 (who is now at Lima) I am indebted for the specimen figured, 

 to the latter for the one dissected. 



The Plant is Hesperis inodora (Scentless Damewort), which 

 I found at Bonchurch in the Isle of Wight, the locality pointed 

 out, I believe, by Dawson Turner, Esq. 



