44 The Ottawa Naturalist. [May 



were being recorded in the Entomological Record for 1907, 

 which will appear in the annvial report of the Entomological 

 Society of Ontario for that year. 



Mr. Letourneau showed inflated specimens of the larvae of 

 Apatela radclifjei and Apaiela intemipta, both of which he had 

 collected on apple. Mr. Young said he had found the larva of 

 the former at Ottawa on Mountain Ash. A general discussion 

 followed on the food plants of lepidopterous insects, and many 

 interesting points were brought out. 



Mr. Baldwin' exhibited a case containing some rare captures 

 which he had made during the past summer. The most interest- 

 ing were Sphinx canadensis, Ampelophaga versicolor (a beautiful 

 specimen), and Apantesis virgo, var. ciirinaria. All of these had 

 been taken at light. 



Mr. Metcalfe showed a long series of the interesting little 

 homoptera belonging to the genus Psylla. He stated also that 

 unfortunately many of these, although clearly distinct, had never 

 been named. Tn the meantime he was saving all he collected 

 and taking careful notes as to dates, localities and food 

 plants. He also shov/ed a nice collection of Manitoba hemiptera 

 which had been sent to him by Mr. Criddle of Aweme. 



Mr. Harrington showed some acorns of Red Oak which had 

 been collected when newlv fallen in the autumn of 1906 at Kirk's 

 Ferry, Que. He had found a large percentage of the fallen 

 acorns infested bv the galls of some cvnipid. These fusiform 

 whitish galls arose from the base of the nut and developed be- 

 tween the nut and the cup, generally protruding slightly above 

 the cup and causing a marked depression in the nut. The 

 majoritv of the infested acorns had onlv one or two galls, but 

 some had asinanv as five. These greatly exhausted or perhaps 

 destroyed the vitality of the nuts. He had not succeeded in 

 breeding the gall-maker or in finding anv reference to such a gall. 



Mr. Harrington also exhibited a recent fascicule of the 

 Genera Insectorum containing a monograph of the Trigonalidse 

 by Mr. W. A. Schulz. The forty-two known species of these 

 intere.sting hymenoptera are divided into seventeen genera, and 

 five sub-families are indicated. The distribution of the. insects 

 is world-wide, but they appear to be most abundant in Central 

 and South America. Only one Canadian species is known which 

 was collected in Vancouver Island by Rev. G. W. Taylor and 

 was described by Mr. Harrington as Trigonalis canadensis. This 

 species has been made bv Schulz the type of a new genus 

 Bareogonalos and with B. Scnhellaris Cam. (Mex.) forms the 

 sub-family Rareogonaloinae. A specimen of the male was 

 shown and attention called to the armed scutellum and other 

 generic characters. 



