238 THE CANADIAN ENTOMOLOGIST. 



Pissonotus piceus, n. sp. 

 Brachypterous 5 . — A small species slightly smaller than P. hriinneiis 

 and not so stout. Head short, very sHghily curved in front. Eyes 

 slightly indented below to receive the antennae; colour light gray around 

 margins, black in the centre ; vertex about as deep as wide in front, 

 sides curving between the eyes, narrower behind the eyes than before ; 

 all the carinas present, but all rather weak, fove^^ not very deep; colour 

 deep shiny black. 



Front rather wide and short, sides nearly straight, median carina 

 very faint ; anterior three-fourths deep shiny black, posterior one-fourth 

 pure white. 



Clypeus uniformly black ; median carina but a mere suggestion; 

 the black band carried across the anterior coxae as usual ; posterior of 

 this a band of white and towards the tip ot the abdomen, black. 



Basal segment of the antennae about one-third as long as the second 

 segment ; basal segment brown, second segment honey-yellow spotted 

 with white, tuberculate. 



Prothorax about as deep as the head, posterior margin very slightly 

 concave, median carina practically indistinguishable, lateral carina 

 distinct for about two-thirds of their length and then fading out ; colour 

 pure white. 



First and second pairs of legs with the coxse light brown, shading 

 through black on the femora and tibiae to white on the first two tarsal 

 segments, the last tarsal segment black, tibiae of the first and second pairs 

 of legs foliaceous ; third pair of legs shading from dark brown at the base 

 of the femora to honey-yellow on the tibiae to white on the tarsi, tips of the 

 tarsi black. 



Scutellum triangular, sides straight, not visible for its entire breadth, 

 covered by the prothorax on its outer edges ; median carina indistinct, 

 lateral carinae short, curved outward, poorly defined ; colour uniform deep 

 shiny black. 



Elytra short, not quite covering the first abdominal segment, 

 coriaceous, polished, veins indistinct ; colour, basal three-fourths deep 

 shiny black, posterior one-fourth pure white. 



Abdomen uniform shiny black ; genitalia deep reddish brown, almost 

 black ; pygofers tapering to a blunt point, plates very short, extending 

 only one-fourth of the length of the pygofers, only a small edge visible ; 

 style white. Length, 2.5 mm. 



