70 FAMILY III. — I'ORIMEL.-ENID^E. 



visited it was taken from red clover, and from fields grown up in red 

 clover, timothy and blue-grass." 



From both lateralis and marginella, pulicaria is easily distin- 

 guished by having the corium in great part white, and from 

 lateralis also by its much smaller size. The shorter, more obtuse 

 head, lack of tubercle on tip of tylus, less densely punctate 

 cheeks, shorter beak and slightly larger size are other char- 

 acters separating it from the southern species, marginella. 



32 ( — ). Corimelvena harti Malloch, 1919, 215. 



Broadly oval. Black, shining, with a slight brassy tinge; costal 

 border of elytra and outer margins of fifth and sixth ventrals ivory- 

 white ; female with apex of last dorsal also ivory-white ; antennae dull 

 yellow; femora black, tibiae and tarsi paler. Head broader than long, 

 finely and rather closely punctate. Pronotum finely and densely punc- 

 tate, more so on sides where the punctures are sub-strigose or aciculate. 

 Scutellum as wide as long, the apex broadly rounded, its disk finely, 

 rather sparsely punctate with sides more closely and coarsely so. Genital 

 plate of male densely punctate, its upper margin bisinuate. Length, 

 2.5 mm. 



Plummer's Island, Md., Oct. 6 (McAtee). Described from 

 Makanda, 111., and recorded also from Virginia and Georgia. 

 Very close to marginella Dall., but lacking the hind tibial spines 

 and with head less densely punctate. 



33 (— ). CoRiMELiENA agrella McAtee, (Hart & Malloch, 1919, 216). 



Broadly oval, convex. Black, shining, with a greenish reflection; 

 costal margin of elytra and outer margin of sixth ventral ivory-white ; 

 antennae and tarsi pale brownish-yellow, femora and tibiae piceous- 

 brown. Resembles C. lateralis closely in structure and sculpture, but 

 body thicker throughout, more broadly rounded behind. Pronotum with 

 transverse depression more pronounced and humeral angles more con- 

 vex. Length, 3 — 4 mm. 



Plummer's Island, Md., April 26 (McAtee). That is the type 

 locality but it is known also from Virginia and Kentucky. The 

 more convex form, with body more broadly rounded behind and 

 the paler antennae, distinguish agrella from lateralis with which 

 it is closely allied. 



Family IV. CYDNIDAE Billberg, 1820, 70. 



The Ground or Burrower Bugs. 



Small or medium sized black or brown, oval or oblong sub- 

 depressed species having the head feebly declivent, clypeate 



