June, 1917] DiCKERSON : LePTOBYRSA RHODODENDRI. 105 



and throats of all possible wild ruminant hosts are greatly to be 

 desired. Such hosts are the various deer, wapiti, various caribou, 

 moose, all belonging to the family Cervidse; and pronghorn, various 

 mountain sheep, Rocky Mountain goat, musk-ox, belonging to other 

 families of ruminants. The bots should be sent alive, packed in 

 loose dry earth in tin receptacles. 



NOTES ON LEPTOBYRSA RHODODENDRI HORV. 



By Edgar L. Dickerson, 



NUTLEY, N. J. 



The writer has been interested in observing this insect in New 

 Jersey during the past few years and presented a brief paper on its 

 development and habits at the fifth annual meeting of the Ento- 

 mological Society of America in December, 1910. Recently the 

 synonymy of this species has been noted in the Entomologist's 

 Monthly Magazine and it seems opportune therefore to bring this to 

 the attention of American entomologists and to record some addi- 

 tional notes on this insect. 



The species, which was redescribed by Heidemann under the name 

 Leptobyrsa explanata (Proc. Ent. Soc. Wash., X, p. 105-108, 1908) 

 and which has been considered under the latter name by American 

 collectors, was first described by Horvath as Stephanitis rhododendri 

 in 1905 (Tingitidae Novse et Minus Cognitse e Regionae Paleartica in 

 Ann. Mus. Hung., Vol. Ill, p. 556). As this description may not be 

 available to some of our American students I include it herewith: 

 " Pronoto elytrisque hyalinis, pallido-reticulatis et pilis brevibus 

 erectis griseis sat dense obectis : capite nigro, buccubis albidis, fere 

 ubique seque altis et antice ultra apiceni tyli prominulis; antennis 

 albido testaceis, brevissime pilosulis, articulo ultimo apicem versus 

 nigro, pronoto disco brunneo, utrinque prope vesiculam anticam 

 nigro, lateribus foliaciis late explanatis, irregulariter quadriseriatim 

 areolatis, vesicula antica oblongo-elongata, sat humili, carina mediana 

 quam vesicula antica baud vel paruni altiore, carinis duabus lateralibus 

 antice vesiculam anticam attingentibus : elytris abdomine multo longi- 



