OP WASHINGTON, VOLU.MK \VI, 1014 2M 



The ants were constant visitors on the plants. The following- 

 species were taken; Myrmecocystus inclliycr Forel, suhsp. orbicep* 

 Wheeler, Formica rufibarbis Fabricius var. (/mm/ Buckley, Cremas- 

 togaster opaca Mayr var., Camponotus bnicxi Wheeler, ('uniponotux 

 fallax Nylander var., Camponotus mina Forel. subsp. zuni \Vheeler 

 var., and two species of Pheidolc. 



Among the bees were Mdissodes cominnin* < !resso;n ;ind /V/v///,/ 

 mentzeliarum Ckll. and a new species in each of these g.-nera. and 

 Halictus mesillensis Ckll. Professor Cockerell's notes follow this 

 paper. 



Mr. Crawford has determined the chalcids a.nd finds seven spe- 

 cies probably all undescribed. Two of these he presents in an 

 accompanying paper. The yellow Spilockalcis and the 

 have already been mentioned. A beautiful black 

 was also taken in Stone Cabin Canyon, and in this same locality 

 was found a species of Habrocytus. In Fish ( 'reek ( 'anyon \ve found 

 a' new species of Perilampus, a Conura, and a new species of 

 Rileya, described in the accompanying paper. 



Mr. Rohwer has determined the wasps to be a new species of 

 Tiphia, two species of Paratyphia, and has also determined a 

 Braconid of the genus Monogonogastra. A s])ecimen of Poli^d .- 

 belli cosus Cresson was taken at nectar and was found to be para- 

 sitized by a Xenos. 



Outside of two notices of the boll weevil on Tliiirhrrifi 1 this i< 

 the first paper in which any insects are recorded from the plant. 

 It is therefore of interest to note that this paper mentions S:-5 differ- 

 ent species in 8 orders of Insecta and one of Acarina. The species 

 are distributed as follows, Acarina 1, Hemiptera 14, Orthoptera 

 3, Thysanoptera 2, Lepidoptera 7, Coleoptera 24, Hymenopiera 

 29, Dipt era 2, and Strepisptera 1. 



These insects may be classed as injurious 25, nectar visiting 

 40, parasitic 12, and predaceous 6, in their purposes of visiting 

 the plant. 



STUDIES OF THE ARIZONA THURBERIA WEEVIL 

 ON COTTON IN TEXAS. 



BY B. R. GOAD AND W, D. PIERCE, Bureau of Entomology. 



In order to establish the taxonomic status of the weevil breeding 

 in Arizona in the*squares and bolls of Thurberia thespcswidc* a 

 number of studies have been undertaken. In connection with 

 these studies individuals of both sexes of the Arizona and Texas 



1 Cook, 1913, Science, February, 1913. 



Pierce, 1913, The occurrence of cotton boll \\ccvil in An/mm, Journ. 

 Research, i, no. 2, pp. 89-96, pi. vi. 



