OF WASHINGTON. 237 



The three following papers were read by title : 



NEUROPTEROID INSECTS FROM ARIZONA. 

 By NATHAN BANKS. 



The following species of Neuropteroid insects were captured 

 bv Messrs. E. A. Schwarz and H. S. Barber in Arizona in 1901. 

 I have included some taken by Mr. E. J. Oslar during the season 

 of 1902, by Mr. H. G. Hubbard in the year 1897, by Messrs. 

 Hubbard and Schwarz in 1898, by Mr. R. E. Kunze in 1897 and 

 1898, and a few by Cockerell and by Morse. The dragon-flies 

 and ant-lion flies are not included. The total number is about 

 40 species ; especially complete is the series of Chrysopidae and 

 Hemerobiidae. The other groups are poorly represented. 



Most of the species from Williams show close affinity to the 

 Colorado fauna, but there are distinct indications of relation to 

 the fauna of Southern California. A number of species are known 

 to occur in Mexico, and one of these was not previously known 

 from the United States. Two species have not been determined 

 specifically. 



The species most abundantly represented, and therefore proba 

 bly the most common, are Callib&tis undata, Chrysopa calif or- 

 Jiica, Eremochrysa punctinervis, Micromus variolosus, and 

 Hemerobiusperparvus. These are typical southwestern species, 

 none of them being known from the eastern States. 



Order ARCHIPTERA. 



Family PSOCID.E. 

 Psocus conspersus, n. sp. 



Dark brown or nearly black, head dull ; legs pale brownish: antenmc 

 brown, pale at base. Wings hyaline ; pterostigma brown, venation mostly 

 brown, hind margin with two brown or black spots, one before the mid 

 dle, the other close to the base; another spot near base of the closed cell 

 in middle of wing; elsewhere the wing is sprinkled with minute dark dots, 

 none, however, very close to the margin ; hind wings unmarked, venation 

 brown. Antenna? quite long and slender, front of head swollen. Wings 

 moderately long; pterostigma rather large, rounded behind; the closed 

 cell quadrangular, as wide at base as at the tip, nearly twice as long as 

 broad. 



Length, 3 mm. 



A few specimens from Williams, July 24 and 27. 



7'ype. No. 6794, U. S. National Museum. 



The National Museum also has specimens from Tucson, col 

 lected January 5 (Hubbard). 

 Psocus sp. 



One specimen of a handsome species, related to P. s/>ars?ts* 

 from Oracle, July 15 (Schwarz). 



