408 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



No. lots in Av. No. per ton 



Insect which found in 6 winter lots 



Phalacrus penicellatus 5 456 



Eudiagogus rosenschoeldi 5 440 



Spermophagus robinise 6 439 



Sinea spinipes 5 296 



In the winter lots Cremastogaster Uneolata occurs at the head of the 

 list of species collected, ranked by number per ton, three times. 

 Paromius longulus occurs first twice, second three times and third once. 

 In summer this species is not found at all. Anthonomus suturalis is 

 found first once, second three times and third once. Lixus musculus 

 occurs third twice, fourth once and fifth once. It will be observed that 

 several species which are found in only five of the six winter collections 

 of moss, occurred in these lots in such large numbers that, in average 

 number per ton for the six lots, they stand higher than several species 

 which were found in every lot collected. 



Probably the most striking figure in this article is that of 1,313 boll- 

 weevils per ton of moss as the average for the winter moss. Messrs. 

 Newell and Dougherty have shown ^ that Spanish moss carried boll- 

 weevils over the winter better than any other hibernating material, 

 and an average number of over a thousand of these dangerous insects 

 to each ton of moss in a central Louisiana swamp would certainly 

 furnish a vast number of unwelcome guests to the nearby cotton- 

 planters. 



Of the insects found in the five lots of moss collected in June, we 

 find only four occurring in more than one lot. These are 



No. lots in Av. No. per ton 



Insect which foxind in 6 summer lots 



Cremastogaster lineolata 2 413 



Diolcus chryssorrheus 2 248 



Mantura floridana 4 226 



Anthonomus suturalis 2 130 



It is significant that not one boll-weevil was found in summer. 



Remarks on Spiders 



Of spiders there are 28 genera, representing 40 species, 27 genera and 

 38 species occurring in the winter collections. In the summer only 

 three genera and species are found, one genus, Prosthesima, not occur- 

 ring in the winter, and the undetermined species of Dendry-phantes is 

 also lacking in the winter collections. 



The average spider population of the six lots of moss collected during 

 the cooler months is found to be 5,969 per ton, while for the June lots 

 it falls to 281 per ton. Of the spiders taken from the six winter 



"^ Circular 31, State Crop Pest Commission of Louisiana, 1909. 



