1885.] PHYTOPHAGOUS COLEOPTERA OF JAPAN. 741 



Genus Manobia, Jacoby. 



Manobia lewisi, sp. nov. 



Subquadrate-ovate, piceous ; above fulvous ; thorax finely and 

 remotely punctured ; elytra regularly and strongly punctate-striate, 

 the base swollen. 



Length | line. 



Head imf)unctate, obliquely grooved above the insertion of the 

 antennae ; the latter more than halt' the length of the body, fulvous ; 

 the second joint as thick as the first, but one half shorter, the two 

 following of the same length, but much thinner, the four or five ter- 

 minal joints thicicened. Thorax scarcely twice as broad as long, the 

 sides straight and converging from the base to the apex, the anterior 

 angles slightly oblique and not produced ; surface impressed with 

 fine and remotely-placed punctures, transversely grooved near the 

 base, the groove slightly sinuate and extending to the sides. Elytra 

 subqnadrate, the base distinctly raised, the ])unctured striae very 

 distinct and extending to the apex, the interstices near the lateral 

 margin slightly costate. Legs entirely fulvous, the first joint of the 

 posterior tarsi as long as the two following together ; claws appendi- 

 culate ; anterior coxal cavities open. 



Jchiuchi. 



This genus was established by myself on some small-sized Haiti- 

 cince from the Malayan Archipelago, and described in the ' Annals 

 of the Genoa Museum.' The present species is smaller than any of 

 its allies, and differs in the general coloration as well as in the 

 punctuation of the elytra, which is more distant in regard to the 

 striae. 



Genus Aphthonoides, Jacoby. 



Aphthonoides beccarii, Jac. (Plate XLVL fig. 2.) 



The species upon which I was obliged to establish this genus has 

 been recently described by myself in the 'Annals of the Genoa 

 Museum :' the specimens which served for the description were 

 obtained at Java by Signor O. Beccari. The differences between 

 these and the specimens collected by i\Ir. Lewis at Jchiuchi and 

 Nagasaki are so slight that I prefer to look upon them as variation 

 rather than specific. These differences consist in the lighter- 

 coloured antennae and legs in the Japanese insects, and in the rather 

 more transversely shaped thorax ; other marks of distinction I am 

 not able to see, and it is very probable that I am right in considering 

 the two forms as specifically identical, the more so as there are 

 several instances of similar identity of species in other families 

 amongst the Coleoptera of Japan and the Malayan islands. 



The present genus, which has quite the appearance of a small species 

 of Aphthona, is at once distinguished by the long and acute spine 

 attached to the posterior femora, which is longer than the corre- 

 sponding tibia, by the regularly punctate-striate elytra, and the 

 broader prosternum. 



