The PseIvAphid^ of North America. 301 



eighth smallest, eighth, ninth and tenth gradually much larger, 

 trapezoidal, the last joint not connate, oblong-ovate. Pro- 

 thorax impunctate, polished, as long as wide, widest through 

 the middle, convex, lateral fove^e small, not in full view from 

 above; the median basal puncture very small. Elytra indeti- 

 nitely punctulate, shoulders not prominent, their width equal 

 to that of the prothorax; suture one-fifth longer, across the 

 tip one-third wider, sutural lines parallel, the interval not 

 punctured, discal lines parallel, obsolete in the posterior fourth, 

 sides and posterior margin of each elytron arcuate. Abdomen^ 

 punctation doubtful, tirst segment three times wider than 

 long, the carinas one-third as long as the segmental length, 

 divergent, and including one-half of the total width. Legs 

 slender, stronger in the male, posterior tibiae arcuate, ? frontal 

 margin produced m a tubercle, behind which is a perceptible 

 acupuncture. 



Habitat. California, San Diego, Lake county (Carl Fuchs). 

 Plate IX., Fig. 70, antenna 5 and ?. 



B. coMPAR, Lee. " Elongata^ -punetata., ptibeseens, thoraee 

 subangulata, elytris pnnetatis, abdominis segmento -primo striis 

 iiuliis^'' — Leconte's original description. Front transversely 

 impressed, dark ferruginous, antennae (5) stout, joints sixth to 

 eighth narrower than fourth and fifth. Length, 1.2 mm. 

 Unknown to us; may be identical with Casey's B,franciseana. 



B. FUXDATA, Casey. Black, elytra red, darker at the base 

 and posterior Hmits, antennee and legs dark piceous, pubes- 

 cence dense, short. Length, 1.3 mm. 



Head convex at the occiput, evenly punctulate, foveee small, 

 frontal fovea? wanting; front declivous, on the declivity bear- 

 ing an oval spot with short, dense, erect setee. Antennce longer 

 than the head and prothorax together, slender, the basal joint 

 irregular, large, truncate, wedge-shaped, transverse; the second, 

 smaller; third, narrower, obconical; fourth, a little smaller and 

 transverse; fifth, longer than wide, regular, more than one-half 

 wider than the fourth; sixth and seventh, of nearly the same 



