306 THE CANADIAN ENTOMOLOGIST. 



tawny to dark brown, usually iridescent, the apices of the claval 

 nervures and an irregular oblique band back of the clavus milky white. 

 Sometimes there is more or less of milky white between the dark nervures 

 on the base of the corium. 



Described from twenty-four specimens from Happy Hollow, Ward, 

 North Park, Salida and Rico. Colo. The face and pronotal markings 

 are similar to lachrymalis, while the elytra, especially in the male, 

 are quite different. It should follow that species in the key, from which 

 the small size and long antennal discs will readily separate it. 



Idiocerus concinnus, n. sp. 



Size and general appearance of brunneus, more highly coloured, 

 resembling rufus, but larger, broader, and with antennal discs. Length, 

 5.5 mm.: width, 1.75 mm. 



Vertex and face moderately broad, much less inflated than in 

 brunneus, margins of genre but slightly rounding ; elytra nearly opaque, 

 the venation indistinct ; nervures with setigerous punctures ; outer ante- 

 apical cell present, rather long. Female segment almost twice the length 

 of the penultimate ; posterior margin slightly rounded, often slightly 

 sinuate ; pygofers stout, moderately long, twice longer than in brunneus, 

 nearly half longer than in amabilis., the ovipositor exceeding them by its 

 own width. Male valve with a blunt median tooth, distinctly exceeded by 

 the strong lateral angles ; antennal plates large, oval. 



Colour: Female pale cinnamon brown, the pronotum darker: face 

 and all below yellow. Male darker, especially along the dorsum of elytra, 

 where the dark tergum shows through. Face and below pale yellow, with 

 faint stripes beneath the eyes. 



Described from numerous specimens from Vancouver Island, B. C. 

 (Livingstone). This has been received as rufus, G. and B., but it is 

 quite distinct. The discs of the male antennae alone would readily 

 distinguish them. It more closely resembles brunneus. from which the 

 third anteapical ceil and the distinct genitalia, as weil as the absence 

 of spots on vertex, will readily separate it. 



Idiocerus amabilis, n. sp. 



Resembling amoenvs in form and general appearance, but much 

 stouter and more highly coloured. Pale fulvous brown, with light 

 markings along the median line, and greenish margins to the elytra. 

 Length. 6 mm.; width, 2 mm. 



