January 1895.] 



rsrcHE. 



187 



large. Cheeks not one-third tlie vertical 

 diameter of tlie ejes. Antennae vellowisli 

 red. Palpi light vellow. Thorax daik 

 reddish brown, opaque, the niesonotnni 

 with a pair of stripes and the lateral mar- 

 gins yellowish white pollinose. Pleurae 

 with a similar light colored stripe at about 

 its middle. Abdomen deep reddish brown 

 •or black, opaque, with the lateral margins 

 opaque light 3'ellow; ovipositor vellow. 

 Legs wholly light yellow; the four anterior 

 femora only a little thickened; tip of bind 



tibiae and the distal joints of all the tarsi 

 brown; hind femora considerably thick- 

 ened; hind tibiae arcuate, not dilated, with 

 a feu- short bristles on the outer side; 

 all the femora with spiny bristles on the 

 under side distally. Wings brownish, 

 lighter colored along the costa; first pos- 

 terior cell elongate. Scutellum yellowish, 

 whitish pollinose. Length S-g mm. 



Two specimens. Chuiiada, Brazil, 

 H. H. Smith. 



A P.SYLLID LEAF-GALL ON CELTLS, PROBABLY PACIIYP.SYLLA 

 CELTIDLS-PUBESCENS RILEY. 



in' C. H. TVLER TOWNSEND, I.AS CRUCES, N. M. 



On May 14, 1S92, I found at Riley's 

 water, at western base of the Organ 

 Mountains, some small leaf-galls on 

 Celtis occidentaUs. The tree was 

 determined by Mr. Walter H. Evans, 

 who was with me at the time. The 

 galls at that d.ite showed on the upper 

 side of the leaves as small swellings 

 abotit3to 5 min. in diameter, with a pit 

 in the center, thus appearing like raised 

 circles. On the tmder side they showed 

 simply as smaller waits covered with 

 fine rather long pubescence. .Several 

 galls occurred on the same leaf. 



On Nov. 36, iSc)2, in the north en<l 

 of the same range, south of San Augus- 

 tine and part way tip from the base of 

 the mountains, there were found ntimer- 

 ous fallen leaves of Celtis containing 

 fully developed galls of this species. 

 As many as 20 galls occurred on one 

 small leaf. There were occasionally 

 some double sails. The fallen leaves 



were green in color, but nearly dry. 

 This gall appears without much doubt 

 to be that of PacliypsyUa celtidis- 

 piibescens Riley, as it agrees well with 

 the description. 



The dried galls on the leaves jtist 

 mentioned measure 2 to 3 mm. in 

 diameter on the lower globular portion. 

 The upper circular rim-like portion is 

 3 to 4 mm. in diameter. Only galls from 

 which the occupants had emerged were 

 measured. The exit holes are in the 

 side of the pit-like depression on upper 

 surfice of leaf. Thev are elongate 

 openings, so as to allow the egress of 

 the wide-bodied and flattened ptipa. 

 Occasionally a gall has a small circtilar 

 opening, in one case this being in the 

 globular portion of the gall on the under 

 side of the leaf. These mark the exit of 

 a small hymenopterous parasite. 



Some of the above dried galls having 

 no exit hole were opened, and some 



