THE CANADIAN ENTOMOLOGIST 361 



The male is uniformly darker, with the white dorsal spot and 

 the apical ends of the tegmina consequently more distinct. 



4. Bolbonota lutea, sp. nov. (Fig. 4). 



A fine, handsome species near B. globosa Fairm. In shape and 

 size it much resembles B. insignis of Fowler, but differs in colour 

 and sculpture, Fowler's species being shining, black and irregularly 

 rigid, while lutea is uniform lemon yellow and almost smooth. 



Head, body and legs light lemon yellow throughout. Head 

 comparatively smooth, pubescent, twice as long as wide; ocelli 

 slightly protruding; clypeus roughly diamond-shaped, with lateral 

 angles extending beyond line of lorae. apex produced. Pronotum 

 smooth, densely covered with yellow pubescence; humeral angles 

 prominent and obtuse; percurrent median ridge high and lightly 

 sinuate until just before the posterior apex, where it is abruptly 

 declivous; posterior process blunt and triangular, just reaching 

 internal angle of tegmina; three faint, short ridges over each 

 humeral angle, the middle one most prominent; a depressed con- 

 striction just posterior to these ridges on each side of median 

 carina, forming an apparent bulbous swelling before and behind it 

 Tegmina comparatively narrow, exposing almost one-fourth of the 

 abdomen below ; flat, opaque ; yellow slightly punctate and pubescent 

 at base. Abdomen yellow and pubescent. Legs concolorous yel- 

 low with very fine black- tipped spines at apex of hind tibiae. 



Type. — Female. 



Length 4.2 mm., width 2.6 mm. 



Locality. — Espirito Santo, Brazil. 



Described from four females. 



5. Bolbonota nigrata, sp. nov. (Fig. 5). 



Near B. melaena Germ., but differs in the structure of the 

 dorsal surface and in being entirely without spots on pronotum or 

 tegmina. 



Entirely shining black, except extreme tips of tegmina, which 

 are hyaline; very rough and corrugated. Head rough, finely punc- 

 tate, sparsely pubescent; ocelli white, equidistant from each other 

 and from the eyes; eyes dark brown, edged with white. Pronotum 

 deeply and coarsely punctured, covered with irregular ridges and 



