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been characterized in a brief article upon this insect published by 

 Dr. Thomas in our Eighth Entomological Keport. I have here to 

 record the occurrence in Illinois of a second species of this family, 

 similar in habit, (and apparently in life history also), to its well- 

 known relative. 



This is a small yellowish species which we found at Normal on 

 the 7th of May, and occasionally thereafter, puncturing the blades 

 and the petioles of the leaves of the pear trees. It presents all the 

 characters of the genus Trioza, having, however, the frontal lobes 

 greatly inclined (projecting downward decidedly more than forward) 

 so as to present the aspect of a beak. 



It averages .1 inch in length. The surface is opaque, thorax 

 brownish yellow, abdomen blackish brown. The head is twice as 

 wide as long across the eyes, nearly as wide as the thorax ; the 

 vertex very widely emarginate in front, the foveae opaque but not 

 rugose, very large, occupying nearly the whole of the upper surface. 

 The vertex is usually black, edged with yellow posteriorly, but the 

 black is sometimes reduced to a transverse blotch surrounded by 

 yellow, or even to two black spots occupying the centers of the 

 fovese. The face is black, frontal lobes diverging somewhat, hairy, 

 with the longer hairs varying in color from white with black tips to 

 wholly black. The antennae are as long as the head and thorax, 

 the two basal joints and the basal half of the third white some- 

 times shaded with dusky. The third joint is four-lifths as long as 

 the fourth and fifth together. The last two joints are thickened, 

 closely united, forming a slight club, and the last bears a minute 

 cylindrical appendage at its inferior tip and a short hair above. 



Pronotum narrow, white in the middle, brown or black on the 

 sides, with a white point upon the lower edge. The dorsulum 

 opaque, naked, a little longer than the mesonotum, closely and 

 minutely punctured, brownish yellow, often clouded with dusky, 

 most distinctly seen in front, where brownish blotches sometimes 

 appear, one upon either side of the middle. The sutures are all 

 black, posterior margins straight in the middle ; the sides, a little 

 distance in front of the suture, bearing each a short black spine. 



The mesonotum and scutellum are brownish yellow, alutaceous 

 like the dorsulum, with a conspicuous lanceolate or oval longitudi- 

 nal brown stripe or blotch on each side the middle, and an oblique 

 blotch outside' this, usually less evident than the preceding. Scutel- 

 lum vaulted, plain in all the specimens examined. Wings hyaline, 

 nerves brownish yellow. 



The legs of the first and second pairs are sometimes wholly 

 dusky, except the tarsi, which are black, but the femora are some- 

 times dusky only above, and the tibise only in front. The hind 

 femora are commonly dusky above, but the tibiae and the basal 

 joint of the tarsus pale. Abdomen purplish brown with pale posterior 

 edges to the segments ; conspicuously hairy at tip. 



Described from ten specimens. 



Another species of Trioza, {T. diospyri), first described by Ash- 

 mead from the persimmon in Florida, and found by us abundant 

 on that tree in Southern Illinois, was likewise occasionally seen at 



