OF WASHINGTON, VOLUME XV, 1913 167 



of Phlebotomus minutus are found in crevices between bricks 

 and stones, where the Geckos hide and where the excrement of the 

 lizards furnishes them suitable nourishment. But the association 

 with the Geckos is closest in the adult females, as these normally 

 suck the blood of the lizards. "In a bungalow in which P. minu- 

 fus is fairly abundant, careful examination of the lizards on the 

 wall, at almost any time of day or evening, may reveal that per- 

 haps every other lizard has a sand-fly perched on its back and 

 sucking its blood. ... I believe that there is no doubt that 

 the flies have a distinct preference for biting lizards as compared 

 with men; that they are, in fact, primarily parasites of the lizard. 

 To us they are troublesome only in the hot months, generally in 

 the late evening or very earl}' morning, and it is extremely diffi- 

 cult to get them to bite the hand or arm in the laboratory during 

 the day. Geckos confined with sand-flies are, on the other hand, 

 freely bitten at any hour of the day, as well as in the evening, and 

 one lizard may have several flies biting at once, this may happen, 

 moreover, just after the flies have completely refused to bite a 

 human wrist." 



Professor Quaintance exhibited specimens of cranberries hav- 

 ing numerous galls on the leaves and asked for information as to 

 what was the cause of the peculiar growth. Mr. Banks suggested 

 that it might be caused by the mite, Eriophyes vaccinii, or some 

 < Vcidomyiid. 



Mr. Banks exhibited specimens of a Psyllid, Livia innn/inata 

 Patch, taken near Falls Church, Virginia, on the leaves of a sedge. 

 This species was figured by Miss Patch in Psyche from two speci- 

 mens from Connecticut. The insect deforms the lower leaves of 

 the sedge to form a tuft of white leaves that are very prominent. 



Mr. Knab discussed the life history of Dermatobia. Infestation 

 of man with the larva is common in the American tropics and the 

 laf V2e are also common in cattle, horses, and other mammals. Noth- 

 ing has been known of the manner of infestation, and it has been 

 assumed that the eggs are deposited directly on the host. The 

 probability that the infestation is not direct was indicated by 

 the large number of eggs (750 to 800), found by Neiva in dis- 

 sections. Now Surcouf of Paris has received South American 



