362 THE CANADIAN ENTOMOLOGIST 



bulbs. Median ridge percurrent, sharp and sinuate; humeral 

 angles prominent; two large bulbs on each side median ridge, ridge 

 thin between these bulbs; a Y-shaped ridge between humeral 

 angle and first lateral bulb; posterior process blunt, subtriangular, 

 slightly depressed,' extending just beyond internal angle of tegmina. 

 Tegmina velvety black, veins somewhat raised, extreme tip of 

 marginal border hyaline. Abdomen black; segments edged with 

 fine white line. Legs black; hind tibiae strongly spined; tarsi 

 flavous. 



Type. — Female. 



Length, female 3.6 mm., male 2.8 mm.; width, female 2.4 

 mm., male 2 mm. 



Locality. — Bolivia. 



The male differs only in size. 



Subfamily SMILIINJE. 



6. Metheisa sinuata, sp. nov. (Fig. 6). 



This species varies greatly in size and colour; the size ranges 

 from four to seven millimeters, and the colour from light cinna- 

 mon brown to almost black. The sculpture and pattern of the 

 pronotum, however, are constant. The pronotum is rather more 

 elevated than in the other species of this genus, and is broadly 

 sinuate in the middle; the tegmina usually show four apical and 

 two discoidal cells, though in one specimen one of the discoidal 

 cells is absent; the wings have four apical and no discoidal cells. 



Head rough and sculptured; subtriangular, apex very sharp; 

 clypeus almost square, somewhat pubescent; face deeply pitted; 

 proximal margin of the head produced into a ridge. Prothorax 

 elevated; median keel high and thin, sinuate in middle between 

 rounded dorsal elevations, on either side of these elevations and 

 between them a white patch, very distinct, even though the body 

 colour may vary; on each side of pronotum. three prominent ridges, 

 deeply and coarsely punctate between them; humeral angles 

 prominent and blunt; posterior process sharp, decurved, reaching 

 just to the apex of the tegmina. Tegmina nearly half concealed 

 by the pronotum; basal two-thirds opaque and roughly punctured; 

 apical third hyaline, black spot at tip. Abdomen extending about 



