OF WASHINGTON, VOLUME XVI, 1914 21 



MISCELLANEOUS INSECTS BREEDING ON THURBERIA. 



A very tiny leaf miner was found quite abundantly in all of the 

 places where we found the plant. This species has not yet been 

 bred, but is quite different from the ordinary cotton leaf miner. 



A new species of Bucculatrix was found feeding on the leaves of 

 Thurberia in all the places investigated, and at McCleary's Ranch 

 in Stone Cabin Canyon, this species had found the three or four 

 plants which had been grown there at an altitude of about 4000 

 feet. The tiny larva of this species spins an elongate white cor- 

 rugated cocoon less than | inch long. The species will be des- 

 cribed by Mr. Busck. Specimens of this genus have been found 

 on cotton in Mexico. 



Another Lepidopterous larva, determined by Mr. Busck as 

 Dichomeris deflecta Busck, makes a fold in the leaf by means of 

 two or three silken threads, and feeds within this fold. It is very 

 active and when its hiding place is disturbed quickly slips out. 

 It pupates in its fold. It fed on cotton at Victoria, but Mr. Goad 

 could not carry it through to maturity. It is parasitized by a 

 species of Braconida?. 



A species of Geometridse was very commonly found feeding on 

 the foliage of Thurberia in Stone Cabin Canyon. Geometridse are 

 commonly found on cotton. 



One beautiful yellow and brownish Bombycine larva was found 

 feeding on a Thurberia plant in Stone Cabin Canyon. This was 

 successfully bred by Mr. Coad and determined by Dr. Dyar as 

 Lirimiris truncata H. S., a species new to the United States. 



A species of Epheslia breeds in the bolls quite commonly. Only 

 one specimen has so far been carried to maturity. This was de- 

 termined by Dr. Dyar. 



A very pretty yellow Spilochalds was bred in May from bolls 

 infested by the Ephestia, and is very probably a parasite of it. 



Two species of Thysanoptera were found in Thurberia flowers. 

 Several specimens of Frankliniella insularis Franklin, (Eutln-/i>*) 

 determined by A. C. Morgan, were found in a flower in Stone ( 'abiu 

 Canyon. This species occurs in Mexico, at Brownsville, Texas, 

 and in Barbados. 



A Ptinid, Prostephanus tnincatus Horn breeds abundantly 

 in the dead stalks. One Cerambycid stalk-boring larva was also 

 found in Stone Cabin Canyon. 



A Scutellarid, Aulacostethus ni<innonitn* Say was found com- 

 monly feeding and breeding on dead bolls of Thurberia. 



Twice in Stone Cabin Canyon a species of Eucharidae was ob- 

 served ovipositing in apparently healthy squares. In one instance 

 the sprig was gently plucked and transferred to a vial without dis- 

 turbing the tiny insect and both of us observed its ovipositor in- 



