Vol. 1.] Yan. Duzee. — Synoptical Keys to Genera of Miridae. 211 



Hind margin of pronotum concavely arcuate, leaving base of scutellum 

 exposed; head sometimes nearly vertical but then narrowly but 

 distinctly surpassing front line of eyes; hind margin of callosities 

 nearly or quite attaining middle of pronotum 1 



1. Head when viewed from the side distinctly produced and oblique; 



angle of face (angle of tylus and bucculae) subacute; eyes small 

 and oblique, placed at middle of the head 4. Macrolophus Fieb. 



— Head vertical or nearly so; apex of head truncated, facial angle a 



right angle; eyes large and vertical 2 



2. Head produced in a distinct neck behind eyes, space behind the eye 



when viewed from the side about as long as width of the eye 

 2. Dicyphus Fieb, 



— Head scarcely produced behind the eye, forming but a very slender 



margin there of about the width of pronotal collum 



3. Engytatus Reut. 



Tribe Orthotylini n.n. 



KEY TO THE DIVISIONS 



Head broad with eyes stylate, their inner margins being beyond the jiro- 



notal angles 1. Laboparia Reut. 



Head sometimes broad but eyes not at all stylate 1 



1. Head broad, hind margin sharp, concentric with or overlapping an- 



terior margin of pronotum 2 



— Head not unusually broad, not concentric with or overlapping anterior 



margin of pronotum; eyes rounded behind 3 



2. Form broad-oval; hind femora often broad, saltatorial; clypeus distinct 



from the front 2. Halticaria Kirk. 



— Form elongated, body often constricted at the middle; liind femora 



normal; clypeus depressed and fused with the front 



3. Pilophoraria Reut. 



3. Apical two joints of antennae not thinner than the second 



4. Ceratocapsaria n.n. 



— Apical two joints of antennae abruptly thinner than the second, seta- 



ceous, or nearly so 4 



4. Base of vertex and sides of pronotum sharply carinate; anterior mar- 



gin of pronotum sometimes distinctly elevated in a ridge liy a trans- 

 verse depression before callosities; body opaque. ...5. Lopidearia n.n. 



— Base of vertex and sides of pronotum sometimes more or less carinate; 



anterior margin of pronotum in this case not at all elevated 



6. Orthotylaria n.n. 



Division 1 Laboparia Reut. 

 But one North American genus Labops Burm. 



Division 2. Halticaria Reut. 

 Antennae long, setaceous, as long as entire body; hind femora greatly 



flattened, saltatorial 1. Halticus Hahn. 



Antennae scarcely longer than elytra; hind femora not greatly widened 



nor saltatorial 2. Strongylocoris Blanch. 



