THE CANADIAN ENTOMOLOGIST. 321 



faint spots on the pygidium, prosternum finely sulcate, legs black, brown 

 at base, with white spots on the thighs and rings on the shanks. 



One <$ , Natchez, Mississippi ; <J? > Falls Church, Virginia, Type 

 coll., Bowditch. 



I have five $ specimens from various places, where the elytra are 

 almost wholly yellow and a trifle more regular in ccstation and more 

 broken up into elevated spots, but I think they are all the same species. 



North Carolina, Georgia, Pennsylvania, Grand Bay, Alabama. 



Pachybrachys varians, nov. sp. — Of the same size and general colora- 

 tion as femoratus, 01., yellow and black, often more yellow, and broader in 

 shape and much more regularly punctate striate and with a well-marked 

 shield, length 2-2^ mm. 



Head yellow finely punctured, with heavy dark spots on vertex, cen- 

 tral line and spots at base of antenna, often all suffused together, eyes 

 distant in both sexes, antennae red brown, darker towards the end, reach- 

 ing the middle of abdomen in £ , thorax yellow finely punctate, M (typical 

 o* ) usually heavy, strong and well marked and closely punctate, typical 

 9 much yellower and M much more faintly marked, transverse de- 

 pression and lobe in front of scutel, medium, the lateral edge is finely 

 angulate, hind angles fine and obtuse. The elytra (typical £ ) are yellow 

 with the standard spots much diffused, leaving the tip, a row of spots on 

 the convexity, the shield, a row of spots round the humerus and others 

 near the base and scutel yellow, almost regularly punctate striate, except 

 for a slight disturbance round the scutel and a break in the sixth, seventh 

 and eighth intervals back of the humerus, (typical °- is much yellower 

 and shows much less suffusion of the standard spots, the rear ones show- 

 ing as a band and the others very faint, the striation is not quite as 

 regular as in the J )> body below black more or less picked out with yellow 

 in the usual places, legs yellow with dark rings on all, and light tip on the 

 femora of two hind pairs. The above is what I term the typical form ; 

 from this it varies until almost the entire upper surface is yellow either 

 with the standard dark marks very faintly shown in clouds or very dis- 

 tinctly marked in black, the larger $ 's are quite wide and flat and look 

 very differently from the typical £ , the smaller and darker forms have a 

 close superficial resemblance to femoratus, 01., but that is never broad 

 and stocky or so regularly punctate striate, nor is the shield ever as well 

 developed ; marginal stria very moderately curved and slightly sinuate 

 (same as femoratus), lobe the same ; below black with spotted sides of 

 abdomen and pygidium. 



