SUBFAMILY II. — MEZIRINiE. 327 



each side adjoining tip of corium; beak, tarsi and apical half of fourth 

 antennal, dull yellow. Cheeks exceeding tylus, their tips slightly en- 

 larged and divergent; head behind eyes rounded, without spinous process; 

 antennae and antenniferous spines as in pseudonymus. Pronotum trape- 

 zoidal, side margins evidently but not deeply sinuate, not reflexed ; disk 

 rather coarsely and evenly granulated. Scutellum broadly triangular, 

 its apex narrowly rounded; disk granulated from base to middle, then 

 transversely wrinkled. Genital segment of male, broad, oval, hind mar- 

 gin subangulate, lobes small; of female with lateral lobes rounded, middle 

 lobe transverse, its hind margin rounded, entire. Length, 5.8 — 6.2 mm. 



Plummer's Island, Md., April 24 (Gerhard). Clayton, Ga., 

 June (Davis) . Described from North Carolina and hitherto 

 recorded only from that State. The rounded and non-spinous 

 postocular portion of head and rugose surface of hind portion 

 of scutellum are its principal distinctive characters. It is also 

 less shining than our other species, with antennae relatively 

 shorter and stouter, both they and head very coarsely granu- 

 lated. 



VII. Aneurus Curtis, 1825, 86. 



Small oblong or oval, brown or blackish species having the 

 surface smooth or minutely granulated ; head as broad or 

 slightly broader than long, tylus equalling or slightly exceed- 

 ing the cheeks ; antenniferous spines very short, acute, some- 

 times subobsolete ; impressions of vertex broad, oval, shallow ; 

 antennae slender, first joint stoutest, fourth longest ; beak very 

 short, not reaching hind margin of eyes, its sulcus lanceolate ; 

 pronotum subtrapezoidal, margins entire or very finely denticu- 

 late, not reflexed, disk with an evident but ill-defined trans- 

 verse median impression ; scutellum as wide or wider at base 

 than long, its apex broadly rounded, edges not elevated ; mem- 

 brane without visible veins ; ventral surface very flat, seg- 

 ments without rugae or keels. Seven species are known from 

 North America, all of which occur in our territory. 



KEY TO NORTH AMERICAN SPECIES OF ANEURUS. 



a. Antenniferous spines wanting or very short and obtuse. 



b. Joints 1 — 3 of antennae subequal in length, 4 subcylindrical, as long 



as 2 and 3 united; postocular spines prominent, acute; terminal 



genital segment of male wider than long, not surpassing the 



lobes at sides. 262. politus. 



bb. Joints 1 — 4 of antennae gradually increasing in length, the second 

 one-half longer than first, 4 fusiform; postocular spines obtuse; 

 terminal genital segment of male oblong, convex, surpassing 

 the lobes. 263. tenuicornis. 



