153 



ruhruvi. The cranium is, however, less prominent, the thorax slightly 

 broader, and in the female the black spot on the sides, just below the dorsal 

 surface, is much narrower, sometimes entirely obsolete ; the whitish spots 

 upon the m'iddle of the sides are indistinct, and sometimes entirely obsolete. 

 The elytra do not reach beyond the apex of the second abdominal segment. 

 The under side of the posterior femur is yellow, and the tibia3 have a black 

 dot upon the knee, and a l)lack ring just below it. The tip of the last ven- 

 tral segment of the male is more narrowed, acute, and conically produced 

 than in C. femur-ruhrum. In its other characters it agrees with that species. 



Dimensions. — $ Ltngth, 0.88 to 0.90 inch. $ 0.64 to 0.66 inch. 



About Baltimore, Maryland (Uhler) ; Rock Island, Illinois (Walsh). 



P. BioB-ealis, Scudd , Bost. Jour. Nat. Hist., VII, 464. 



Vertex of the heac with a broad, longitudinal furrow in advance of the 

 middle of the eyes. Sides of the pronotum very nearly parallel, slightly wider 

 at the hind border, which is arcuate; median carina slightly higher than the 

 lateral, not prominent. Elytra longer than the wings, not quite reaching the 

 extremity of the abdomen. 



Color. — Dark-brovvn, darkest above. A broad, black band liehind the 

 eye, extending over the upper portion of the sides of the pronotum to the 

 hind border. Face dark yellowish-brown. Hind femora streaked with 

 black, with the tip black ; hind tibiae reddish, with a faint, paler annulation 

 near the base ; the spines tipped with black. Elytra dirty yellowish-brown, 

 spotted irregularly with darker brown. AVings pellucid, a little dusky at the 

 costal border. 



Dimensions. — Length, 0.65 inch ; elytra, 0.4 inch ; posterior femora, 0.4 

 inch. 



Minnesota (Scudder). 



F. dod^ei, Thos. 



Syn., Caloptenus dodgcl, Thos., Cauad. Entom., 1871, 1G8.— Geol. Snrv. Terr., 

 1871, 451, PI. ii. Figs. 1, 5, 9. 



Alale. — Small size. Vertex elongate, distinctly channeled ; frontal costa 



broad, Hafc^nd squarely margined above the ocellus ; margins punctured. 



Ant,enna3 thick, passing the pronotum ; joints distinct, and somewhat obconic. 



Transverse incisions of the pronotum distinct; posterior lateral margins very 

 20 A 



