OF WASHINGTON, VOLUME XIV, 1912. 101 



Olethreutes rubipunctana Kearfoot : The larvae of this 

 moth were quite numerous in the dry seed-pods of the common 

 iris (Iris missotiriensis) about Pullman. The larvae feed on 

 the seed and spin a cocoon within the seed chamber, wherein 

 they hibernate during the winter. Larvae were collected on 

 March 12, 1910, from which three specimens of the parasite 

 Ascogaster sp. n. emerged on May 11 and one more parasite 

 on June 20. In 1911 iris seed-pods containing these lepidop- 

 terous larvae were again collected and on June 15 an adult 

 moth emerged. 



Crambns cypridalis Hulst : A remarkable flight of these 

 moths occured at Pullman for three nights, September 23, 

 24, and 25, in 1911. The moths were so numerous about 

 arc lights that they gave the light the appearance of being 

 enveloped in a driving snow storm. 



Aphochantus desertus, Coq. : The pupa of this fly was 

 found in the pine-needle mold that had accumulated in a 

 hollow on one of the large bowlders which cap the summit of 

 Moscow Mountain, Idaho. The pupa was collected on July 

 24, 1910, and placed in some of the extremely dry mold in 

 which it was found, in a box. On August 24 the fly emerged. 



Tephritis jinalis; The larvae and puparia of these flies 

 were found in the floral heads of the wild sunflowers (Bal- 

 samorhiza sagittafolid) at Pullman on May 9, 1910. They 

 always occurred one in a seed capsule and averaged over 6 

 flies to the floral head, 70 flies having been reared from 11 

 heads. The flies started to emerge on May 24 and continued 

 emerging until June 2. However, these floral heads were 

 moistened and probably presented abnormal conditions 

 that disturbed the normal appearance of the adults. 



Mr. Pierce stated that he was preparing a treatise on the 

 biologies of North American weevils, including notes also 

 on Central and South American forms. There are important 

 gaps in our present knowledge of these insects and compara- 

 tively little is known of the breeding habits of our Otiorhyn- 

 chidae and Rhynchitidae. Any help along these lines which 

 will enable him to work out some of these difficult problems 

 will be appreciated, and/if possible, he prefers to use published 

 records, so that the credit may go to the original observer. 



Mr. Pierce also summarized the classification of the tem- 

 peratures as used in the study of the boll weevil. The various 

 temperatures are grouped into zones in accordance with their 

 effects on the insects, as follows : 



