89 



poiuetiiiies rcredinii' soincwluit from the tcniiiiial cud of the miiu' 

 liefore pupating. Some were found with the :int('ri<n' end pi-o- 

 iecting thru a break in the dead e})idermis of the k'af. <i-7uim. 

 htng, sh^ider, nearly cylindrical; pale greenish, head, wing- 

 sheaths and leg-slieaths dark fuscons to nearly black just before 

 the emergence of the fly. Thorax with two yellowish l)rown 

 dorsal horns, the respiratory processes, projecting forward with 

 the tips curved ventrally. Leg-sheaths of e(pial length, extend- 

 ing along ventral side to the apex of the foiu'th abdominal seg- 

 ment; wing-sheaths placed laterally, extending to a})ex of sec- 

 ond abdominal segment; margins of abdominal segments mi- 

 nutely roughened as in the larva, which enables the pupa to 

 force itself half way out of the mine before the emergence of the 

 fly ; apex of abdomen slightly bifid. 



This is apparently a very remarkable habit for a cranefly, as 

 I have been unable to find any mention of such habits in litera- 

 ture. The larvae of those species that have been studied feed 

 at the roots of plants, beneath dead bark, in rotten logs and 

 other decaying vegetation, etc., some are aquatic, and others live 

 on leaves like caterpillars. There are numerous species of Dl- 

 cranomyia in the mountains of the Hawaiian Islands, many of 

 which are yet midescribed, and the habits of the larvae are 

 mostly unknown. It may l)e that other species may be found to 

 have this leaf-mining habit when their habits are studied. 



^^OVEMBER 5Tn, 1911. 



The one hundred-eleventh regular meeting was held in the 

 usual place, President Swezey in the chair. Other members 

 present: Messrs. Giffard, Ehrhorn, Fullaway, Illingworth, 

 Kuhns, Osborn, Pemberton and Potter; and ]\[r. C. F. ]\[ant, 

 visitor. 



Minutes of previous meeting read and approved. 



]\[r. Swezey proposed the name of ^Ir. C. F, Mant for active 

 membership in the Society. 



■ EXT().\rOI>OGTCAT> PROGRAM. 



Mr. Ehrhorn read from the October, 1914, number of 

 Science, a paper by Fernando Sanford of Stanford University, 

 giving results of the use of Cyanide of Potassium injected into 



