72 
Psyche 
[February 
This was the female which was sketched as shown in figure 2a. 
No other moths came out till April 20 when two males appeared. 
These were killed and with the female were sent to Dr. H. G. 
Dyar, of the United States National Museum at Washington 
where Dr. Busck kindly identified them as Meskea dyspteraria 
Grote. 
On April 23 three more moths emerged. One of these, was a 
male. The gall from which it emerged is shown in figure la. 
Photographic work was done under great difficulties as the 
Fig. 2. Meskea dyspteraria Grote. a , Female moth resting on gall ;b, section of gall showing 
position of pupa; c, male with copulatory tuft extended; d, egg seen from the top; 
e , same from side. 
strong light necessary for the camera disturbed the moths. 
This difficulty was later overcome in studying the moths at 
night by the use of a red light which did not seem to disturb 
them. After April 23 several moths emerged each warm night, 
although six was the greatest number of living moths under 
observation at any one time. On June 6, when the author left 
Austin, several of the moths had not yet appeared. 
Some very interesting and hitherto unobserved details of 
the habits of the moths in mating were observed with the use of 
the red light mentioned above. Soon after darkness, the male 
moths extrude from the posterior tip of the abdomen an elongated 
