4o 



Cincinnati Society of Natural History. 



Polygnotus salicicola Ashmeacl. The types of this 

 species were reared at Los Angeles, California, by Mr. Koe- 

 bele, and from Cecidomyid galls on the midrib of willow. My 

 single specimen was found alive in one of my insect boxes, 

 which, on account of my absence from home, had not been 

 opened for some weeks. It must have emerged in the box and 

 from a minute Cecidomyid larva that had been introduced by 

 accident. It certainly occurs in Wayne County, Ohio. De- 

 scribed in Bull. 45, U. S. Nat. Mus., p. 305. 



Crematus retini^E Cresson. Described in 1879, from 

 New York. My specimens were reared from the larvae of Cram- 

 bus, probably, and among them C. luteolellus Clem., and were 

 collected in Ashtabula County, Ohio. The species was de- 

 scribed in Rep. Ent. U. S. Dept. Agric, 1879, p. 238. 



Hexapi^asta melanopus Ashmead. The types of this 

 species were reared from pupae of a small, dusky Dipteron, 

 Leucopis sp., the larvae of which destroyed the cherry aphis, 

 at Shreve, Wayne County, Ohio, in Summer of 1893. For 

 description see Mr. Ashmead's paper. 



Ephedrus incompletes Provancher. Described in Add. 

 Faun. Hym., p. 156, the habitat being given as Canada. 

 Reared at Wooster, Ohio, from aphis, infesting potato plants 

 and roses in greenhouses, in September. 



Microplitis mamestr^ Weed. Reared from larva col- 

 led at Shreve, Wayne County, Ohio. The cocoon of this 

 species is fastened beneath the host, parallel, between the 

 posterior pair of abdominal prolegs and the anal prolegs. 

 Host, the larvae of Mamestra picta Harris. Described in Bull. 

 111. St. Lab. Nat. Hist., Vol. Ill, p. 2. 



Copidosoma cei^En^E Howard. This species is described 

 from Missouri, where its host was Celcena renigera Stephens. 

 The date of appearance was May 16th. On September 12, 

 1890, at Lafayette, Indiana, I found the species in great 

 abundance on flowers of Helianthus. On September 11, 1893, 

 I also found the same species equally abundant on the flowers 

 of Helianthus, in the vicinity of Wooster, Ohio. Described 

 in Bull. U. S. Dept. Agr., Div. Ent., No. 5, p. n. 



