240 PHYTOPHAaA. 



35. Leptinotarsa h*6gei. (Tab. XV. fig. 3.) 



Oblong ovate, dark cupreous ; antennse and tarsi dark fulvous j thorax distinctly punctured on the disk ; elytea 

 subgeminately punctate-striate, testaceous, a broad sutural and discoidal longitudinal band, as well as the 

 extreme lateral margin of each elytron, cupreous. 



He^d ext^mely finely punctured, distinctly broader than long ; labrum dark fulvous ; maxillary palpi with the 

 last joint nearly as long as the preceding one, the apex broadly truncate ; antenna elongate extending to 

 nearly the first third of the elytra, dark fulvous, the last six joints gradually widened but longer than 

 broad. Thorax transverse, the anterior and posterior margins nearly parallel ; the sides deflexed, much 

 rounded near the anterior angles, the latter acute ; surface rather finely punctured on the disk, the punctures 

 placed distantly, more closelv although scarcely more strongly punctured at the sides ; scuteUum triangular, 

 impunctate, cupreous. Elytra scarcely wider at the base than the thorax, parallel m the male, more 

 dilated in the female; the darker bands finely subgeminately punctate-striate, the lighter portions nearly 

 impunctate, these latter of a yellowish or testaceous colour; the extreme lateral margin connected at the 

 apex with a broad sutural band, the latter narrowed near the base, dark metallic cupreous ; another longi- 

 tudinal band of similar colour extends from the middle of the base to a little distance from the apex, the 

 inner margin of this band is deeply concave at the middle, the outer one but slightly concave at the same 

 place, and produced below that into a short straight tooth. Underside, the legs, and the elytral epipleurse 

 metallic cupreous; tibia* obsoletely channelled towards their middle; claws simple, unarmed. 



Ilab. Mexico, Cerro de Plumas (Hbge). 



Ten specimens of this interesting species were obtained by Herr Hoge. Although 

 not quite agreeing in the comparative length of the joints of the palpi and the antennae, 

 the grooves of the tibia? are, I think, sufficiently characteristic (though obsolete) 

 to place the species in the present genus. In colour the insect bears a most striking 

 resemblance to Zygogramma ornata, from which the widely separated claws and the 

 punctuation of the thorax and elytra will at once separate it. 



LABIDOMERA. 



Labidomera, Chevrolat in d'Orb. Diet. univ. Hist. Nat. hi. p. 656 (1843). 

 Cryptostetha, Baly, Trans. Ent. Soc. iv. p. 350 (1858). 



In this genus the meso- and metasternum is raised to a higher level than the pro- 

 sternum, the apex having a transverse tuberculate appearance. The last joint of the 

 maxillary palpi is transversely truncate and much shorter than the preceding one. 

 Cryptostetha has been separated by Mr. Baly on account of the unarmed anterior 

 femora ; the female sex in Labidomera shows, however, the same structure, the teeth 

 being peculiar to the male insect only. On that account it is better not to separate 

 the genera, in which I follow also the arrangement of the Munich Catalogue. One 

 species has been described from Central, the others principally from South America. 



l. Labidomera suturella. (Tab. XV. figg. 5, 6.) 



Labidomera suturella, Chevr. in Guer. Icon. Eegne anim. p. 301 (1838) \ 



Labidomera suturella, var. germari, Chevr. loc. cit. p. 301 2 ; StSl, Monogr. Chrys. Amer. p. 143 . 



