180 NEW SPECIES MELYRIDAE, CHRYSOMELIDAE AND TENEBRION1DAE 



middle 48. canescens Mann. 



5. Antennae rufo-testaceous, tibiae rufo-piceous, tarsi rufous ; antennae moder- 

 ately long, joints three, four and five rather elongate, sixth triangular and 

 about as wide as the fifth 49 fulvipilosus, n. sp. 



. Antennae, tibiae and tarsi dark piceous; antennae long, heavy, last two 

 joints particularly stout; sixth, seventh and eighth feebly incrassate, 

 about equal in length and size; maculation tending to form five trans- 

 verse fasciae on elytra, the basal two of which are usually broken 



50. cervicalis, n. sp. 



The following two species have not been recognized with certainty 

 in the material that has passed through my hands. Both species were 

 founded on females. The following descriptive outlines have been 

 epitomized from Casey : 



51. Listrus plenus Casey. Form elongate-oval, strongly convex. 

 Color polished black, without metallic lustre ; second joint of the antennae 

 piceous. Pubescence short, sparse, feebly persistent and with large dark 

 areas on the elytra. 



Head sparsely perforato-punctate, the interspaces flat and somewhat 

 rugose. Antennae slender, quite distinctly longer than the pronotum, the 

 tenth joint about as long as wide. 



Pronotum two-fifths wider than long ; sides evenly and moderately 

 convergent and feebly arcuate from near the base to the obtuse and some- 

 what rounded apical angles ; apex broadly arcuato-truncate and wider 

 than the pedunculiform part of the base, which is more pronounced than 

 usual ; disk widest at basal third, moderately coarsely, deeply and very 

 closely perforato-punctate, scabrous and opaque in lateral fourth ; punc- 

 tures separated by barely their own dimensions, the narrow interspaces 

 sparsely and feebly punctulate. Elytra three-fourths longer than wide, 

 fully one-third wider than the pronotum, parallel, acutely parabolic in 

 apical third, coarsely and rather sparsely punctate, more finely so toward 

 apex as usual. 



Length, 3.0 mm. ; width, 1.2 mm. 



Type locality. Vancouver Island. 



52. Listrus densicollis Casey. Form stout, oblong-oval, somewhat 

 depressed above. Color black with a greenish-brassy lustre. Pubescence 

 short, sparse, cinereous, not very persistent, with large indefinite dark 

 patches on the elytra. 



Head densely punctate, interspaces feebly rugose ; frontal impressions 

 distinct. Antennae only very little longer than the pronotum, tenth joint 

 one-half wider than long. 



Pronotum one-half wider than long, widest at basal third, where the 

 sides are rather broadly and evenly rounded, thence strongly convergent 



