74 ENTOMOLOGICAL NEWS. [Feb., '12 



been seen on several occasions by the writer to suck the juices 

 of mature larvae and pupae of these insects and in one instance, 

 during March, 1909, to find its way into a rearing cage and kill 

 95-5 P er cent, of 163 eggs present on the leaf enclosed. Speci- 

 mens may be found at almost any season of the year on Citrus 

 foliage where they are especially fond of concealing them- 

 selves in the empty cocoons of Chrysopa. In an examination 

 of several thousand Citrus leaves picked at random in groves 

 in and about Orlando, during the fall of 1909, tor the purpose 

 of making white-fly counts, there was found an average of 

 from two to three thrips per leaf sometimes on an individual 

 leaf as many as five thrips. While this thrips kills large num- 

 bers of white-fly larvae and pupae at certain times, it has not 

 yet demonstrated itself to be of practical value in holding these 

 pests in check. 



Aeolothrips vespiformis Crawford. 



During late February and March, and in less numbers dur- 

 ing the late summer months a very conspicuous thrips was 

 found running rapidly over the tender foliage of Citrus. It un- 

 doubtedly belonged to the Aeolothripidae and so closely resem- 

 bled Aeolothrips bicolor Hinds, that the writer sent specimens 

 to Dr. M. J. Franklin for comparison with the type material 

 of bicolor. Upon making this comparison, Dr. Franklin found 

 the Florida specimens distinctly different and in writing to 

 that effect called attention to the description and figures of 

 Aeolothrips vespiformis Crawford, which had just been pub- 

 lished (Pomona Journal of Entomology, Vol. i. Page 109), and 

 had not been seen by the writer. The Florida specimens so 

 closely agree with Crawford's description and figures (head, 

 thorax, abdomen, wing and hind leg), that they represent either 

 the same or a very closely allied species. Inasmuch as Craw- 

 ford's description and figures were made from a single, very 

 poorly preserved specimen and the Florida specimens show a 

 certain range of variation, especially in regard to the num- 

 ber and relative position of the wing spines, the writer prefers 

 to consider the species identical at least until more specimens 



