1917] Barber—Synoptic Keys to the Lygaide (Hemiptera) 135 
ridged. Scutellum usually longer than wide and with a smooth 
calloused area near basal angles. Apical margin of corium 
straight and outer apical angle subacute. First tarsal segment 
of hind legs longer than second and third together. 
B. Scutellum without a median longitudinal, pale, smooth 
Rinne pay ee cme tec epein soe cats rn ea (Edancala A. and 5. 
BB. Scutellum with a median, longitudinal, pale, smooth 
Ni evat er ainp erent ewe nse SEM at Semen ones Pachygrontha Germ. 
Key to the Genera of the Subfamily Oxycarenine. 
A. Veins of corium and membrane evident. The corium coarsely 
but sparingly punctate. Head, pronotum and hemielytra with- 
out fine erect hairs. Head, pronotum, scutellum and body 
beneathrnotipolished: 49750530) Faeyr oiche oer Crophius Stal. 
AA. Veins of cortum and membrane not evident. The general 
surface of the corium impunctate. Head, pronotum and hem- 
ielytra with fine erect hairs. Head, pronotum, scutellum and 
bodyabenecath polished ® 32% «250 2) nites easy lee ae Dycoderus Uhl. 
