Vol. Xxiv] EXTOMOLOGICAL NEWS. 8$ 



specimens were reported or brought to me for identification from 

 various parts of the county indicating an abundant distribution over 

 many miles of area. Is there a local food plant?— O. S. Westcott, 

 Oak Park, Illinois, Nov. 6, igi2. 



The Occurrence of Leucania unipunctata (Haworth) on Sugar Cane 

 in North Queensland (Lepid.). 



The characteristic caterpillars of this species were observed dam- 

 aging young cane and corn plants at Nelson, North Queensland, in 

 June, 1912. The larvas were in only a few cane and corn fields where 

 they caused considerable damage. The young leaves of both cane 

 and corn were eaten off near the base, but the other leaves were 

 also eaten. During the day the larvae remained concealed in the crev- 

 ices of the leaves, but in dull cloudy weather a few were observed 

 feeding. It was noticed that whereas both young and old corn plants 

 were attacked, only cane plants under three feet high were damaged. 

 Parasitic wasps in large numbers were seen in the infested fields. In 

 one small corn field in the township of Nelson, the larvae stripped 

 almost every leaf from the plants and the whole field was practically 

 ruined. This was an isolated case. 



On June 24, 1912, twenty-three larvae were taken from a corn field 

 and placed in jars with cane leaves and a little earth. They had 

 pupated by June 30. The moths commenced to emerge on July 10 and 

 continued to emerge until July 2^, fifteen of the twenty-three reach- 

 ing maturity. The remaining pupae were kept for three weeks longer 

 but nothing came from them. 



On June 28, twenty-two large larvae were taken from a cane field 

 and were -kept in the same manner. They had pupated by July 3. 

 The adults began to emerge on July 15 and continued up to July 23 

 Of the twenty-two larvae taken, twelve reached maturity. No insects 

 emerged from the remaining ten. 



The average daily temperature from June 24 to July 23 was 

 21.16 deg. C. (70.1 deg. Fahr.). — Al.an P. Dodd, Entomological Labora- 

 tory, Sugar Experiment Stations, Mackay, Q. 



Eustypiura rodriguezi (Hym.) 



When publishing this Guatemalan Chalcidid recently in the News, 

 I knew only that it had been bred from a lepidopterous insect. 

 Mr. Juan Rodriguez now sends me an account of the host, sufficient 

 to show that it is a Psychid, probably a species of Oiketicns. It may 

 well be that the remarkable abdomen of Eustypiura is for the purpose 

 of reaching Psychid larvae in their cases, and that the members of 

 the genus will be found to be all parasitic on Psychidse. — T. D. A. 

 CockErell. 



