2Sfi THE CANADIAN ENTOMOLOGIST. 



Head rather large, flat, moderately coarsely and thickly punctured, 

 especially so on the livid frontal mark and vertex ; eyes distant in both 

 sexes, slightly nearer in £ ; antennae yellow, darker after about the fifth 

 joint, reaching a little beyond the hind coxa* in £ , shorter in ° ; thorax 

 yellow, broad, tubularly-narrowed in front and slightly constricted behind; 

 standard M in livid clouds, but very diffuse, the central one somewhat 

 following the livens pattern, finely punctured ; more closely in livid marks; 

 edge subangulate, in some 9 specimens slightly sinuate in rear ; hind 

 angles sharply obtuse ; elytra of the form of livens, but yellow, with suture 

 narrowly black ; everywhere, except the rear of the convexity and apex, 

 diffusely punctate, with here and there traces of the third, fifth and 

 humeral spaces ; punctures more crowded in scutellar area, and sometimes 

 a few traces of brown on the inside standard spots. There is also a sug- 

 gestion in some examples of an elytra] shield ; lobe medium, very gradually 

 narrowed behind, with a small row of punctures on the curve, below with 

 legs pale, with livid clouds ; the epimera, sides of abdomen and pygidium 

 being picked out with paler colour ; the top of the back, which is black, 

 is apt to show behind the elytra in the 9 , and forms a dark middle and 

 two side spots to the pygidium. 



Five 9 's, i J, San Bernardino Mts.; 2 $ 's, Independence, Cali- 

 fornia. Type coll., Bowditch. 



Very close to livens, Lee, but larger, and the punctuation of the 

 elytra not nearly as regular, and lacks the smooth, shiny look of livens. 



Pachybrachys Arizonensis, nov. sp. — Size rather large, elongate, 

 parallel, pale or reddish-yellow, with livid punctures and a faint general 

 livid colour. Length, 2^-^)2 nim. 



Head yellow, with livid frontal line and vertex, most prominent in 9 ; 

 eyes moderately distant, a trifle nearer in $ than 9 ', punctures thick, 

 fine, crowded in the livid marks ; antennae yellow, very gradually and 

 slightly darker towards the end, reaching beyond the hind coxae in £ , not 

 quite so long in 9 ; thorax broader than long, yellow, with standard M very 

 lightly suffused in livid, but amount of colour varying considerably, lightly 

 and finely punctured, but more thickly in livid markings ; edge very 

 lightly subangulate in £ , considerably more pronounced in 9 ; hind 

 angles sharp, finely obtuse ; elytra elongate, parallel, the three standard 

 intervals pretty regularly defined, also the other intervals on the convexity; 

 punctures fine, same as thorax, here and there in other places than as 

 above stated, arranged in lines, but always more or less broken and 

 irregular, and more so in 9 than £ , and showing sometimes a biseriate 



