28 Illinois State Laboratory of Natural History. 



7'Ao/Y/j7.^Pronotuni with the central part green, and, at 

 the anterior^andposterior margins, a double band of black and 

 yellow, — the^black being in front of the yellow. Scutelluni 

 small, black, margined with white. Beneath black, except the 

 narrow pleurites of the prothorax, which are yellow. Legs 

 yellowish, terminal spurs on tibiw and tarsal joints brown. 

 Elytra green, veins black or brown. Wings subhyaline, veins 

 brown. 



Ahdo)nen\AQ.ck^ anal segments yellow. 



This is a very beautiful and quite common insect. It 

 seems to differ so much from all others of the genus that a 

 subgenus must be made for it. It is well distributed over the 

 State. 



Subgenus IV. 



Head above, short, face very much elongate. Elytra with- 

 out anteapical cells. 



T. tripunctata Fitch. (PI. III., Fig. 27.) 



T. tripunctata. Fitch. Cat. Ins. N. Y. State Cab., p. 53. 



Pale brownish yellow, lineate with brown. Head with 

 three black spots above. 



Length 5 mm. 



Head. Above light brownish yellow, with a large black 

 spot around both ocelli and one on the apex of the front mar- 

 gin; the striations of the reflexed portion are brown. Eyes 

 marked with a brown spot. Beneath light brownish yellow, 

 with a pair of brown lines on each side of the front, bounding 

 the striated portion and converging till they meet on the cly- 

 peus. The cheeks are ornamented with two broad brown 

 stripes. 



Thorax. Pronotum light brownish yellow, with two 

 transverse brown lines. Scutelluni small, yellowish, with a 

 central pale brown spot. Beneath yellowish, side pieces often 

 bordered with lighter. Legs yellowish, terminal spurs on the 

 tibiae and tarsal joints brown. Elytra brownish yellow, veins 

 black or brown. Wings subhyaline, veins brown. 



Abdomen beneath, yellowish. 



Rare in southern Illinois, 



