238 



PSl'CNE. 



[August— December 1889" 



no doubt, to the fact that these were ex- 

 posed to the sunHght while the others 

 were not. 



Females reared ivoxnj'utilis galls this 

 season are .10 in length ; the wings .10 

 and the antennre .07 with thirteen joints 

 only, with a partial suture on one side 

 of the terminal joint. 



The median line on the thorax entire- 

 ly wanting ; the head less hairy but with 

 a few scattered hairs on the thorax and 

 on the sides of the second abdominal 



segment. The wing-veins are a darker 

 brown. 



The galls are blister-like swellings in 

 the smooth bark of the roots of young 

 white oak trees, corapletel}- covering the 

 root in some cases for the distance of 

 two feet or more from the tree. 



Note. — A later examination of these insects in a 

 strong light shows that the head and abdomen are really 

 a very dark reddish brown. In ordinary reflected light 

 they are easily taken for black. 



ON A NEW SPECIES OF PEDIOPSIS. 



BY EDWARD P. VAN DUZEE, BUFFALO, N. V. 



To the kindness of Mr. D. W. Co- 

 quillett of Los Angeles, California, I am 

 indebted for the opportunity of examin- 

 ing a very interesting lot of Jassidae 

 from that locality. Among this material 

 is one insect that deserves special notice. 

 It is a species of Pediopsis closely al- 

 lied to the eastern viridis^ and still 

 more closely to the European virescens. 

 The colors are probably somewhat 

 faded^ and possibly altered by an alco- 

 holic bath, but this will scarcely affect 

 the determination of the species. It 

 may be characterized as follows : 

 Pediopsis occidentalis n. sp. 

 Female. — Form of P. viridis^ broader 

 and more robust than P. virescens. 

 Color dull greenish yellow, uniform ; 

 propleura with a black spot ; antennal 

 seta brown. Length al:)out ^ mm. 



Face as in vii-escens^ more distinctly 

 punctured than in vii-idis ; front broader 

 below at the base of the clypeus, which 

 is proportionately narrower, and the 

 lorae are much more tumid than in that 

 species or virescens ; the clypeus is 

 broadly depressed entirelv across the 

 apex, while in viridis this depression is 

 confined to the narrow submargin on 

 either side before the lora, and is scarcely 

 more extended than in the European 

 species. Antennae pale at base, setae 

 brownish. Pronotum shorter and broad- 

 er than in either of the allied species ; 

 the rugae are less distinct than in vire- 

 sce?ts, but more so than in viridis. 

 Propleura with a black spot. Ventral 

 plate as in virescens., shorter and broader 

 toward the apex than in viridis., the tip 

 emarginate, and the sides distinctly con- 



