ART. 23 REVISION OF THE BEETLE GENUS OEDIONYCHIS BLAKE 15 



dark, sometimes with lighter reddish brown frontal spot, coarsely 

 punctate, interocular space more than half width of head, no marked 

 frontal prominences. Pronotum twice as wide as long, narrowed 

 somewhat anteriorly, with straight sides and narrow explanate 

 margin, not shining, coarsely punctate; a broad, dull bluish-black 

 fascia extending over pronotum, leaving only narrow reddish or yel- 

 lowish margin. Scutellum rounded, dark. Elytra elongate oblong, 

 with very narrow explanate margin, slightly convex; entirely dull 

 bluish black, almost smooth, with fine, sparse punctures. Body be- 

 neath yellowish brown with dark brown legs, occasionally darker 

 brown spot in middle of abdomen, epipleura dark. 



Length. — 6.8 to 8 mm. ; width, 3.4 to 4 mm. 



Tyfe locality. — Southern States. 



DistHhution. — Florida. 



The old DeJean catalogue specimen in the British Museum labeled 

 Oe. discicollis has simply the locality "Amer. bor." Crotch de- 

 scribed this species as a variety of vians, from the " Southern States," 

 and gave its characters as " very opaque, the elytral punctuation 

 obsolete, thoracic punctuation very deep and coarse." It differs very 

 markedly from both vians and thoracica in the length of the pro- 

 thorax. In viams and thoracica the prothorax is not nearly half as 

 long as wide, whereas in discicollis the length of the prothorax 

 approaches half its width, and the shape is more rectangular. The 

 species is also slightly larger than via/ns. 



The name discicollis was used by Clark in his catalogue for a 

 South American species and later was adopted by Jacoby in a de- 

 scription of that species.^ ^ Crotch's earlier varietal name preoc- 

 cupies the name discicollis used by Jacoby. 



6. OEDIONYCHIS INTERJECTIONIS Crotch 

 Fig. 12 



Oedionychis mterjectionis Crotch, Proc. Acad. Philadelphia, vol. 25, 1873 p. 61. — 



Horn, Trans. Amer. Ent. Soc, vol. 16, 1889, p. 184. 

 Oedionychis graoilis Jacoby, Biol. Cent. Amer,, Coleopt., vol. 6, pt. 1, 1886, 



p. 420. 



Elongate oblong, moderately convex, shining, pale yellow, a dark 

 green, brown, or black sutural vitta and lateral vitta on each elytron, 

 these vittae occasionally uniting below middle and at apex. Anten- 

 nae not half length of body, moderately stout, dark brown, basal 

 joints and terminal joint sometimes paler, third joint a little longer 

 than fourth. Head with flat, yellow front, otherwise shining dark 

 green or black; a row of punctures about yellow front and eyes, 

 otherwise smooth; eyes large, interocular space half width of head, 



"Proc. Zool. Soc. London, 1894, p. 611. 



