206 GEO. H. HORN, M. D. 



is made up entirely of a rescript of those of Fabricius and Olivier, 

 while the supposed differences are diagnosed from the figure given 

 by the latter author. D. pulchra Casey is described from a very 

 fresh specimen. 



Occurs from Pennsylvania to Florida. A specimen from Mis- 

 souri in my cabinet is doubtful as to locality. 



5. D. arisBOUSe Casey. — Oval, slightly narrower in front. Antennse scarcely 

 half the length of body, black, the underside of three basal joints pale. Head 

 entirely reddish yellow, frontal carina and tubercles indistinct, a group of coarse 

 punctures on the front at the upper border of each eye. Labrum fuscous. 

 Thorax yellow, more than twice as wide as long, narrowed in front, sides feebly 

 arcuate, margin narrow, disc regularly convex, usually shining, sometimes 

 slightly alutaceous, sparsely indistinctly punctate, a small piceous spot on each 



.side of middle, placed more distantly from each other than from the apical 

 border. Scutellum black. Elytra wider at base than the thorax, humeri obtuse, 

 callus not prominent, surface very distinctly, but not closely punctate ; color 

 yellow, a narrow sutural black vitta joining the marginal, which does not in- 

 clude the extreme edge or epipleurse ; a median vitta wider than the sutural, but 

 narrower than the yellow space on either side. Epipleurfe pale, at most slightly 

 fuscous internally. Body beneath yellow or testaceous, legs somewhat more 

 reddish, the tibite at tip and tarsi piceous. Abdomen slightly alutaceous, shining, 

 punctures very sparse, pubescence short and sparse. Length .22 — .26 inch. ; 

 5.5 — 6.5 mm. 



From either of the species with com|)aratively smooth abdomen 

 this may be known by the narrow median vitta, pale epipleurce and 

 entirely pale head. Superficially it bears a close resemblance to 

 caroliniana, in which, however, the abdomen is closely punctate and 

 very distinctly pubescent. 



Occurs in southern Arizona. 



6. D. maritima Mann. — Oval, slightly narrower in front. Antennae half 

 the length of body, black, the underside of three basal joints paler. Head black, 

 front yellow, the frontal carina and tubercles well marked, some very coarse 

 punctures placed across the vertex. Labrum piceous. Thorax yellow, without 

 spots, more than twice as wide as long, narrowed in front, sides arcuate, margin 

 narrow, disc regularly convex, distinctly punctate, the punctures rather coarse, 

 not close. Scutellum black. Elytra very little wider at base than the thorax, 

 humeri rounded, callus not prominent, suture and entire margin including the 

 epipleurte, a rather broad median vitta black, the intervening space yellow, 

 surface finely, sparsely and indistinctly punctate. Prothorax beneath yellow. 

 Body and abdomen black, the last segment yellow ; surface of abdomen shining, 

 finely, transversely strigose with few scattered, coarse punctures and very few 

 short hairs. Legs black, the outer side of the tibise yellow. Length .16 — .20 

 inch. ; 4 — 5 mm. 



