230 Journal New York Entomological Society. [Voi. x\vi. 



The Field Committee through Mr. Dow reported that seven members took 

 part in the excursion to Central Park, L. I., where the capture of Brephos 

 infans was the feature of the occasion. 



Mr. Engelhardt spoke of the " Faunal Zones in S. W. Utah," saying in 

 part that they were governed by the elevation and canons and exceedingly 

 varied. Primarily three zones, Virgin River Valley at about 3,000 ft.. Great 

 Basin at about 5,000 ft., High Plateau at about 10,000 ft., might be dis- 

 tinguished. But the canons act as arms of the more elevated zones ; the 

 vegetation of which will descend to even 3,000 ft. in the canons ; and an 

 intermediate region at 6,000/7,000 ft. may be less distinctly distinguished, as 

 well as another at 4,000/5,000 ft. 



After speaking of the trees and animals that inhabit each zone, Mr. 

 Engelhardt exhibited the tiger beetles as an example of insect distribution : 

 Virgin River Zone: Cicindela prcctextata, arisoncc ; Transition Region: Cicin- 

 dela kirbyi, oregona (green form) ; Great Basin : Cicindela tenuisignata, paro- 

 wana, chihuahuw, oregona (black form) ; High Plateau ; Cicindela longilabris, 

 cimarrona, and a form of longilabris from Duck Lake and Cedar Mts. 



Mr. Englehardt also exhibited from the Hymenoptera he had taken 

 Polistes flavus, Bombus Morrisoni, Xylocopa ariaonensis and tabaniforiiiis, the 

 latter crepuscular in habit, and spoke of previous collecting in the same 

 region by Wickham (1904), Weidt (1900), and particularly Lieut. Wheeler's 

 U. S. Geol. Survey, 1S71-1874, which turned up some species like Satynis 

 wheeleri, Argynnis nokomis and Sphinx elsa, that remain very rare. These 

 species were also shown and caused Mr. Engelhardt to close with an enthu- 

 siastic praise of a region so varied in character and so promising as a field 

 for future work. 



Mr. Nicolay exhibited a collection of syrphid fleas and read a memo, on 

 the lunate onion fly which will be published elsewhere. 



Dr. Bequaert also exhibited Syrphidae, calling attention to a number of 

 special interest including the different color of the hairs noticed in a Cali- 

 fornia specimen of Arctophila flagrans. The allied European species is. how- 

 ever, very variable in color. Others spoken of were Criorhina humeralis Will, 

 from Yaphank, L. L (Mr. Engelhardt), Xanthogramma aqnalis Loew, Catskill, 

 N. Y., Brachypalpus rileyi Will., Staten Island (Mr. Davis), and Red Bank, 

 N. J., Chrysotoxiim ventricosum Loew, Keene Valley, N. Y. (Mr. Notman), 

 Sphiximorpha loewii (Williston), Fort Grant, Ariz. Seven species of Micro- 

 don were shown, including the true M. baliopterus Loew from Texas. Speci- 

 mens from Petersburg, Va., were at first believed to be M. baliopterus, but 

 the specimens caught on the Cornell auto trip at both localities showed the 

 difference ; the Virginia species is probably undescribed. 



Dr. Bequaert also exhibited a crepuscular bee of the genus Ptiloglotta 

 taken at San Juan, Porto Rico, and received through Mr. Engelhardt. 



Mr. Halinan spoke of the countries into which his engineering work had 

 taken him since his last attendance, including Panama, where the rich tropical 

 fauna had enabled him to collect great numbers of insects ; and Chile, where 



