﻿NORTH AMERICAN NOTOSTRACA — LINDER 65 



species from other parts of the workl, among which A. australiensis 

 and A. granarius may be especially mentioned. Distinguishing 

 characters are difficult to establish before the latter species have been 

 subjected to a closer study. For the present, A. lorigicaudatus may 

 be characterized by perhaps one outstanding feature — that the dorsal 

 central spines on the telson are relatively large and are arranged 

 in distinct patterns. 



Localities. — Material from the following localities has been examined 

 by me (samples with more than 50 specimens marked *) : 



Montana: 20 miles south of Malta (U.S.N.M. No. 53715); Malta 

 (U.S.N.M. No. 63289); Billings (U.S.N.M. No. 82047). Oregon: 

 without particulars (U.S.N.M. No. 41845). Wyoming: Cheyenne 

 (U.S.N.M. No. 8298); "coll. A. Hyatt" without particulars (U.S.N.M. 

 58767); near Aurora (locality regarded as dubious), coll. Alpheus 

 Hyatt (U.S.N.M. No. 58766*). California: Butte County, Richvale 

 District (U.S.N.M. No. 82032); Butte and Sutter Counties (paratypcs 

 of A. oryzaphagus) (U.S.N.M. No. 88360); Biggs, Butte County, 

 (paratypes of A. biggsi) (U.S.N.M. No. 88361). Nevada: dry lake near 

 Boulder City (U.S.N.M. No. 82049) ; dry lake bed recently flooded by 

 rain, near Boulder City (U.S.N.M. No. 85524). Utah: Delta (U.S.N.M. 

 No. 61745) ; without particulars (types of A. newberryi) (U.S.N.M. No. 

 11601). Colorado: without particulars (U.S.N.M. No. 12419); 

 University Park, Denver (U.S.N.M. No. 23550); Fort Collins 

 (U.S.N.M. No. 29319); artificial lake on Pinyon Mesa, near Grand 

 Junction, altitude 6,500 feet (U.S.N.M. No. 30576). Nebraska: 

 Dewitt (U.S.N.M. Nos. 18812, 18908, 19489, 19691). Arizona: 

 Anderson Mesa, 35 miles south of Flagstaff (U.S.N.M. Nos. 50559, 

 58770); Red Horse Tank, Grand Canyon (U.S.N.M. No. 81991); 

 natural tank, south rim of the Grand Canyon (U.S.N.M. 82043) ; 

 Haulpai Indian Reservation, T. 29 N., R. 6 W. (U.S.N.M. No. 

 82046*) ; east of Springerville, near Arizona-Mexico boundary, altitude 

 about 7,000 feet (U.S.N.M. No. 82067) ; without particulars (U.S.N.M. 

 No. 82051). New Mexico: Chaco Canyon (U.S.N.M. No. 19634); 

 Eagle (U.S.N.M. No. 41842) ; Las Vegas (U.S.N.M. 82042). Kansas: 

 without particulars (paratypes of A. lucasanus) (Stockliolm Mus. 

 and U.S.N.M. No. 11600); Ellis (U.S.N.M. Nos. 58768, 82054); 

 Wallace County (U.S.N.M. No. 82057). Texas: without particulars 

 (U.S.N.M. No. 11603); Goliad County (U.S.N.M. Nos. 26375, 

 26377); Moores Lake, Lubbock (U.S.N.M. No. 61750*); southeast 

 of Groom, Carson County (U.S.N.M. No. 79027); Brownsville 

 (U.S.N.M. No. 82041); Matagorda Bay (U.S.N.M. No 82045); near 

 Odessa (U.S.N.M. No. 82048); 15 miles west of Ozona, Crockett 

 County (U.S.N.M. No. 82052); 20 miles east of El Paso (U.S.N.M. 

 No. 82056). 



Mexico: Matamoros (types of A. aequalis) (U.S.N.M. Nos. 11599, 



956651—52 5 



