502 JOURNAL OF ECONOMIC, ENTOMOLOGY [Vol. 3 



The observations mentioned by Doctor Marchal as having been 

 made on the occasion of the trip of himself and Mr. Vuillet to west- 

 ern France and Orleans afford an interesting confirmation of the ob- 

 servations made by the writer in June in the same region. Not a 

 single nest of the brown-tail moth was discovered and no trace of the 

 gypsy moth in any of the nursery-growing regions. In fact, during 

 the past summer, lepidopterous larvae of ah kinds were exceedingly 

 rare in northern France. This, however, need not be taken as a 

 ground upon which to base careless inspection of imported stock the 

 coming winter. 



INSECTS OF THE YEAR 1910 IN IOWA 

 By R. L. Webster 



The weather conditions during the past season in Iowa have been 

 exceptionally adapted for the abundance of several insect pests. 

 The warm month of March, followed by continued cool weather, and 

 the long period of drought during the summer, caused many insects 

 to become very common. The insects I will take up in a more or 

 less chronological order, as they were found during the season. The 

 first thing that I have to record, however, has nothing to do with the 

 pecuhar weather conditions this year. This is the finding of the 

 clover leaf-weevil in Iowa. 



Phytonomus punctatus Fabr. This insect has been gradually work- 

 ing westward ever since its importation from Europe and I have been 

 expecting to find it in Iowa every year. In April, 1910, I spent a 

 few days around Burlington, which is on the Mississippi River in the 

 southeastern part of the state. I found no traces of the insect on 

 the high ground back from the river, but I did find larvae fairly com- 

 mon in a clover field in the river bottoms, a couple of miles north of 

 Burlington. These larvae were taken to the insectary at Ames and 

 the beetles were subsequently reared, these emerging May 12th to 

 24th. So far as I know this is the first occurrence of this insect west 

 of the Mississippi, with one exception, at Vancouver, B. C, which 

 may be an artificial importation. The insect reached Illinois from 

 the east about 1903. 



Pegomya fusciceps Zett. On account of the very warm weather in 

 early spring corn planting began very early. But it turned cool again 

 for several weeks and during this period much damage was done by 

 the seed-corn maggot. By the middle of June most of the maggots 

 had matured and the adult flies emerged towards the latter part of 

 that month. The most injury was in the earlier planted fields, where 



