344 PHYTOPHAGA. 



Hah. Guatemala, Aceytuno, Totonicapam 10,500 feet (Champion). 



The nearest allied species to the present one seems to be C. rugata, Har., from which 

 it differs in the pale testaceous colour of the antennae and legs, in the less deeply 

 impressed thoracic groove, and in the punctuation of the elytra, which in C. pallipes is 

 much finer, the interstices being flat and not convex ; the base of the elytra is still 

 more swollen than in the allied species. In the specimen from Aceytuno the posterior 

 femora are stained with piceous ; but I am not able to find any other difference. 



5. Crepidodera (?) obliterate 



Testaceous or obscure fulvous ; intermediate joints of the antennae black ; thorax convex, the transverse groove 



scarcely visible, impunctate ; elytra finely punctate-striate, depressed below the base. 

 Length 1-1 £ line. 



Eab. Guatemala, Senahu, San Juan in Vera Paz, Panima (Champion); Panama, 

 Bugaba (Champion). 



It would perhaps have been justifiable to establish another genus for this insect, 

 which has nearly lost the characters peculiar to Crepidodera, and is without doubt an 

 intermediate form. The head shows no trace of punctuation, and the frontal tubercles 

 are distinct and not transverse ; the antennae are rather slender, more than half the 

 length of the body, the third and fourth joints of equal length, and the sixth to the 

 tenth joints generally black (in some specimens only the eighth to the tenth are black) ; 

 a single specimen from Bugaba (probably a male) has the last four joints slightly 

 triangularly dilated, the antennse being altogether more robust ; the thorax is about 

 one half broader than long, the sides being strongly rounded ; in some specimens the 

 basilar groove is only just visible with a strong lens, while in others it may almost be 

 called absent, sometimes it is only indicated by a transverse row of small punctures ; 

 the elytra show a distinct transverse basal depression and are of parallel shape ; their 

 surface is finely punctate-striate, but the punctuation is nearly invisible at the apex ; 

 the other characters are as in Crepidodera. The ten specimens before me show no 

 perceptible variation of importance. 



MESODERA. 



Body oblong-ovate ; head grooved between the antennae ; frontal tubercles strongly developed ; eyes entire ; 

 antennae robust, long, tapering towards the apex ; thorax transversely subquadrate, the sides slightly 

 rounded towards the middle; basilar sulcation deep and extending a short distance up the sides, the 

 lateral grooves indistinct ; elytra finely punctate-striate ; posterior femora strongly incrassate, their tibiae 

 simple, armed at the apex with an exceedingly minute tooth ; first joint of the posterior tarsi as long as 

 the two following joints united ; claws appendiculate ; prosternum very distinct, longitudinally channelled, 

 closing the anterior coxal cavities. 



The insect for which I propose the present genus, is undoubtedly allied to Crepidodera ; 

 the latter genus contains, however, amongst its exotic members many species which I 



