396 Forty-sixth Report on the State Museum [56] 



Var. a. Spots on the thorax sanguineous. No. 745. 



b. Thorax with two black spots at its base. No. 746. 



c. Thorax margined with black at its base. No. 747. 



d. Disk and base of thorax green, immaculate. No. 



748. 



e. Thorax with a green mark shaped like a trident, 



based on its posterior margin. No. 749. 



35 



AULACIZES. Amy. and Serv. 



Tender-footed Aulacizes, A. mollipes, (Say.) Jour. Acad. Nat. 

 Sci., vi. 312. Common on the grass of meadows and pas- 

 tures. No. 750, male; 751, female. 



New York Aulacizes, *^. noveboracensis. Yellow; elytra and 

 large spot at the base of the thorax, olive-green; no black 

 vitta on the sides of the pectus; head shorter, broader, and its 

 apex more obtuse, than in mollipes. Length, 0-33. Rare. 

 On grass in meadows. No. 752, female. 



*HELOCHARA. 



{Or. ^Ao9, a marsh, /.atpu)^ to rejoice.) Head, obtuse-triangular, 

 broader than long, slightly broader than the thorax, the transversely 

 striated front reflected over on to the anterior sides of the vertex; 

 vertex with a slight longitudinal stria ; ocelli on the vertex, farther from 

 -each other than from the eyes; tips of the male attennae knobbed ; 

 •elytra with five terminal and three discoidal cells. By its knobbed 

 antennae, this genus occupies a similar rank to the sub-family Tetti- 

 gonides, that Idiocerus does in that of Jassides. 



^"^ Common Helochara, ^H. communis. Dark green; females grass- 

 green, when faded variously mottled with tawny yellow ; 

 beneath, more or less black, legs testaceous. Length, 0'20. 

 On grass in marshy situations, often excessively numerous. 

 No. 753, male; 754, female. 



Var. a. The usual transverse row of large punctures on the 

 foreside of the thorax obsolete. No. 755. 



