AMERICAN ENTOMOLOGY. 93 



TETYRA. Plate XLIII. 



Generic character. Thorax very narrow before ; scutel elon- 

 gated, longer than broad, not covering the sides of the tergum ; 

 head immersed to the eyes in the thorax ; antennae five-jointed, 

 second joint longer than the third ; labrum very long, striated ', 

 rostrum four-jointed, the three first joints subequal ; tarsi three- 

 jointed, the first joint longer than the second. 



Ohs. The genus Tdyra was separated from Cimex of Linne, 

 by Fabricius, to include those species of which the scutel is very 

 much dilated and elongated, and the antennae five-jointed. Ab 

 instituted by that author, it is perfectly synonymous with Scutel- 

 lera of Lamarck and Latreille. Leech made a different disposi- 

 tion of these genera. He restricted the genus Scutellera those to 

 species that have the abdomen entirely covered by the scutel ; 

 and the second joint of the antennae shorter than the third ; the 

 genus Tctyra he limited so as to include only those of which the 

 scutel, though still dilated and elongated, does not entirely con- 

 ceal the sides of the abdomen, and the second joint of the an- 

 tennae is longer than the third. A third closely allied genus 

 was distinguished by Schrank, under the name of Thyreocorh^ 

 and adopted by Leach. Its scutel is broader than long, the 

 second joint of the antennae is very short, and the anterior mar- 

 gin of the thorax is but little narrowed. 



Of all these genera, we shall be able to give examples in the 

 course of the present work. 



Tetyra fimbriata. — Specific character. Dark green ; thorax 

 with a yellow spotted patch, each side behind ; scutel margined 

 with yellow. 



Desc. Body dark-green, with large punctures : clypeus with 

 the lateral edges parallel : anterior edge rufous, indented in the 

 middle; antennje and middle of the rostrum rufous: thorax with 

 a large yellow spot each side behind, including about two dark- 

 green spots, and a brown one ; posterior angles a little prominent, 

 obtuse : scutel, excepting at base, with a three-toothed margin : 

 hemelytra dark-green with a yellow lateral and posterior margin, 

 the membranous portion dark-violaceous : feet rufous ; thighs 

 with three narrow yellow bands, the anterior pair one-spined be- 

 neath ; tibia with one yellow band, the anterior pair dilated to- 



