CONTENTS.'^ 



Page. 



The Mexican conchuela (Pentatoma lujala Say) in western Texas in 1905, 



A. W. Morrill.. 1 



An associated species 2 



General agricultural conditions at Barstow, Tex 2 



Damage to crops previous to 1 905 ". 2 



Crops damaged in 1905 3 



Other food plants 8 



Seasonal history 8 



Natural enemies 9 



Methods of control _ 11 



Notes on the economic importance of sowbugs W. Dwight Pierce.. 15 



Armadillidium vulgarc Latr 15 



Porcellio Isevis Latr 21 



Metoponorlhus pruinosus Brandt 22 



Conclusions 22 



Notes on "Punkies" {Ceralopogon spp.) F. C. Pratt. . 23 



Ceratopogon guttipennis 23 



Other species of Ceratopogon . . 26 



Other blood-sucking Chironomidae 28 



An injurious North American species of Apion, with notes on related forms, 



F. H. Chittenden.. 29 



Apion griseum Sm : 29 



Apion colon Sharp 30 



Notes on related forms 31 



Insects injurious to the loco weeds F. H. Chittenden . . 33 



The false-indigo gall-moth ( Walshia amorphella Clem.) 34 



The loco root-maggot {Pegomya lupina Coq .) 35 



The fic'kle midge {Sciara inconstans Fitch) 36 



The four-lined loco weevil (Clconns quadrilineatvs Chovr.) 37 



The yellow loco fly ( Tritoxa incurva Loew.) 38 



The spotted root fly {EiLxesta notata Wied.) 38 



The bur-clover aphis (Aphis medicaginis Koch) 40 



The meal snout-moth {Pyralis farinalis L.) -10 



Plant-bugs, leafhoppers, etc 41 



Miscellaneous insects • 41 



oThe ten papers constituting this bulletin were issued in separate form on April 2^ 

 1907 (Pts. I to III), January 14 and May 29, 1908 (Pts. IV and V), August 4 and 5, 

 1909 (Pts. VI and VI I), and May 7, October 17, and November 12, 1910 (Pts. VIII 

 toX). 



68045°— Bull. G4— 11 2 vii 



