Materials, Their Taxonomy and Natural History 63 



white, anal edge brown, never black, 5 longitudinal dark bands, fifth always 

 brown, remainder always dark brown, never black, all edged with irregular 

 double row of punctations. Interspaces flat, while elytra have frequently granu- 

 lated appearance due to numerous fine furrows which often radiate from the 

 punctations. Shoulder more depressed than in L. decemlineata, costal edge 

 inflexed, smooth, flat, white ; hind wings always white or transparent, no color 

 present. Below : White or whitish yellow, color-centers often wanting entirely 

 upon thorax and abdomen, which are smooth and polished. Legs : Light joints 

 browned, tarsus brown, femora sparingly punctate, first pair more so than other, 

 tibia faintly punctate, small spines. 



Size: Eather constant, body index, male 7 to 12.5 mm. long, 4.5 to 8 mm. 

 broad; female, 7 to 13 mm. long, 5 to 8.5 mm. broad. 



Sexes: As in L. decemlineata Say. 



Occurrence: In nature near Cold Spring Harbor, Long Island, New York, 

 1899, tested, breed true ; Cabin John Bridge, Maryland, 1900, not tested fully, 

 some breed true ; in F-, Clifton, Ohio, 1901, 6 tested, breed true ; Chicago, 1903, 

 2 tested, breed true. (Tower, 1906.) 



Juvenile stages: As in L. decemlineata Say, but uniformly lighter in color 

 and lower development of color elements. 



LePTINOTARSA MELANICUM NOV. vae. 

 (Plate 6, fig. 4.) 



Imago: Rounded, convex, robust, shoulder prominent, raised, dark ocher- 

 jellow with dense black, much-fused color-pattern. Above: Epicranium, 

 mouthparts, antennae, eyes, dense shiny black; antennae, seventh to eleventh 

 joints nearly as broad as long, pubescent, terminal joint conical, longer than 

 broad; epicranium strongly punctate; pronotum rather regularly and densely 

 punctate, least so in center ; ocher-yellow with pattern having all elements fused 

 and much enlarged ; scutellum black, polished ; elytra, dark ocher-yellow, anal 

 border black, 5 longitudinal black stripes, second, third, and fourth always 

 united posteriorly, costal edge inflexed, smooth, flat, black or brownish an- 

 teriorly, shoulder prominent, all elytral punctations strong. Below: Head 

 black, thoracic and abdominal segments quite or nearly so; all color-pattern 

 -elements fused, body-color ocher-yellow; legs entirely black, femora and tibia 

 strongly punctate. 



Size: Larger and more robust than the average L. decemlineata Say and 

 much broader in proportion to length; not variable. Male, 12 to 16 mm. long, 

 7 to 10 mm. broad; female, 12 to 16.5 mm. long, 8 to 10.25 mm. broad. 



Sexes: As in L. decemlineata Say, but male is more strongly marked. 



Occurrence: In nature: West Bridgewater, Massachusetts, 1895, 2 tested, 

 breed true; Cold Spring Harbor, Long Island, New York, 1899, 1, not com- 

 pletely tested, indications were that it would breed true; Cabin John Bridge, 

 Maryland, 1900, 29, not tested. 



Food: As in L. decemlineata Say. 



Juvenile stages: As in L. decemlineata except that body-color of larvae is 

 always dense red, verging towards a brownish tinge. 



LePTINOTABSA EUBBIVITTATA NOV. VAB. 

 (Plate 6, fig. 1.) 



Imago: In all respects like L. decemlineata Say, but characterized by the 

 bright-red hypodermal color of the head, pronotum, elytra, and ventral surface ; 



