198 GEO. H. HORN, M. D. 



PHYDAXIS II. g. 



Head oval, inserted as far as the eyes, front oblique, the carina 

 short, obtuse, bifurcate in front, forming an elevated margin, which 

 extends to the sides of the buccal cavity, the tubercles distinct, sepa- 

 rated by a deeply impressed line, sides of head in front of eyes deei)ly 

 concave, forming a lodgement for the first antennal joint. Labrum 

 transverse, entire, the basal membrane visible. Maxillary palpi 

 short and stout, second joint conical, third obovate, truncate, fourth 

 conical and slightly longer. Eyes oval, not prominent. Antennae 

 a little longer than half the body, flattened, more slender to apex, 

 first joint moderately long and stout, the underside broadly flattened 

 and smooth as well as concave longitudinally, second joint oval, 

 narrower than the first and not more than one-third as long, third 

 joint longer and broader, wider at apex, fourth joint similar, 5-7 

 equal in length, a little shorter than fourth and gradually narrower, 

 8-10 gradually longer and less flattened, eleventh longer, slender, 

 the apex prolonged. Thorax very broad, broadly emarginate at 

 apex, the anterior angles obtuse in front, sides feebly arcuate, nar- 

 rowly margined, hind angles distinct, base arcuate, more lobed at 

 middle, a distinct basal marginal line, but no discal impressions. 

 Elytra not wider than thorax, sides feebly arcuate, disc convex with 

 confused punctuation, but with coarser punctures forming indistinct 

 striae near the base. Frosternum moderately separating the coxse, 

 nearly as elevated, apex not broader, the coxal cavities rather widely 

 open behind. Mesosternum distinct, oblique. Ventral segments all 

 free. Legs rather stout, the tibite all broader toward apex, their 

 outer edge rather broadly and deeply sulcate, with an elevated mar- 

 gin each side. Posterior tibiae obliquely truncate, with a short ter- 

 minal spur. Anterior and middle tarsi with first joint oval, second 

 shorter and narrower, third Inlobed, fourth slender. Posterior tarsi 

 with first joint slender, a little shorter than the following joints 

 together. Claws on all the feet distinctly appendiculate. Form 

 oblong oval, glabrous, body winged. 



After as careful a search of the literature as possible no genns has 

 been found to which the above description will apply. The antennal 

 characters do not seem to be at all like this in any other Halticide. 



The first joint when in I'epose is folded obliquely downward and 

 backward in front of the eye resting in a broad and deep concavity 

 between the eye and the lateral border of the mouth, the bifid frontal 

 carina forming the anterior border of the concavity. The first an- 



