1887.] PHYTOPHAGOUS COLEOPTERA OF CEYLON. 67 



foveolate below the base, fiaely punctate-striate, a small spot above 

 the shoulders fulvous. 



Var. The lateral margia and the apices of the elytra fulvous ; 

 femora testaceous below. 



Length 2 lines. 



Head finely punctured at the vertex, the parts of the mouth 

 black. Antennae more than half the length of the body, black, the 

 last two joints fulvous, third and fourth short, of equal length, the 

 fifth joint double the length of the preceding. Thorax not longer 

 than broad, the anterior portion strongly swollen, its angles tuber- 

 culiform when seen from above, each angle furnished with a single 

 hair ; basal groove very deep ; the surface entirely impunctate. Elytra 

 with a deep fovea below the base near the suture, the basal portion 

 above it raised ; the surface rather deeply punctate-striate, the punc- 

 tures not very closely placed and diminishing towards the apex, the 

 interstices slightly transversely wrinkled, longitudinally costate near 

 the r.pices ; just above the shoulders at the basal margin, a small 

 fulvous spot is placed. Legs black, the underside of all the femora 

 fulvous. In the variety the entire lateral and apical margin of the 

 elytra is of that colour. 



The elytra iu this species have the same deep fovea as in L. cei/- 

 lonensis, but their punctuation is much stronger and the antennae 

 have no fulvous basal joints ; the thorax also is much more swollen 

 anteriorly ; and the general coloration is ditferent. 



Lema difficilis, sp. nov. 



Below bluish black ; head and thorax fulvous ; antennae black ; 

 elytra metallic blue, obsoletely depressed below the base, regularly 

 and strongly punctate-striate, the interstices costate near the apices ; 

 legs fulvous, stained with piceous. 



Var. Elytra fulvous, a sutural and lateral longitudinal band blue. 



Length 2 lines. 



Head with some fine punctures when seen under a strong glass ; 

 the vertex but little swollen, with the usual central groove, this 

 latter short and superficial. Antennae more than half the length of 

 the body, black, the two lower joints stained with fulvous below, 

 third and fourth of equal length. Thorax not longer than broad, 

 the anterior angles pointed wlien viewed from above, the sides 

 rather deeply constricted ; surface with a deep basal transverse 

 groove ; the disk with two longitudinal rows of more or less distinct 

 punctures, the sides with some punctures anteriorly only. Scutellum 

 fulvous. Elytra with the base slightly raised and depressed below, 

 the punctuation strong and regular, but more deeply impressed at 

 the basal portion. Legs piceous, more or less stained with fulvous. 



Dikoya. 



L. difficilis cannot be considered a small variety of L. coroman- 

 deliana, on account of the absence of the anterior thoracic groove. 

 L.javana, Lac, is distinguished by the blue head according to the 

 author's description ; in the present insect it is entirely fulvous ; the 

 thorax also is almost broader than long, and the anterior angles are 



5* 



