90 Bulletin of the Brooklyn Entomological Society Vol. IX 



Male: Uniform black, legs yellowish brown, middle and hind 

 coxae pitchy brown. Thorax less pustulate with the lines and 

 grooves more distinct. Wings hyaline, not yellowish as in the 

 female and with the veins very broad. Antennae wholly black. 

 Length 2 mm. 



Habitat: Millers, Indiana (L. H. Weld). 



The rose galls that gave these Rhodites were collected by Mr. 

 Lewis H. Weld, at Millers, Ind., on the sand dunes, June 25, 1912. 

 Some of them were opened November 28, 1912, and compound 

 eyes were beginning to show, indicating that they were about to 

 pupate. The galls were put out of doors during the winter and 

 the flies emerged May 24, 19 13. Mr. Weld does not remember 

 the galls except that they look like those of R. nebulosus Bass, 

 and were found on the leaves of a wild rose. The species is allied 

 to R. ignota and hicolor, but differs from these in the sculpture of 

 the thorax. 



Rhodites nebulosus Bass. 



Specimens of this species were collected at Toronto, Canada, 

 by Mr. A. Cosens. Previously it was known only from Con- 

 necticut and New York. I found the galls in New Jersey also. 



PHOTOTROPISM IN HETEROPTERA. 



By J. R. DE LA ToRRE-BuENO, White Plains, N. Y. 



Phototropism is defined as the reaction of the organism toward 

 light. Its commonest, or most readily observed, form is the at- 

 traction that bright lights have for many insects. It is not to be 

 assumed that this is the most usual manifestation of the phe- 

 nomenon, since its negative or repellant form can be observed 

 only by direct experimentation carefully controlled, even though 

 it be a familiar fact that certain living beings shun light. Direct 

 observations on the order Hemiptera are as unusual in this 

 as in other aspects. What little is known has been casually 

 learned and refers to comparatively few species. The experi- 

 ments of Holmes on Ranatra^ are perhaps the most complete 



* S. J. Holmes, " The Tropisms and their Relations to the more complex 

 Modes of Behavior," Bull. Wise. Soc. Nat. Hist., 1912, X, pp. 13/23, 



