260 



Ancyloxypha numitor. W. 5, 6, 7, 14^ Jun. ; L. 5 Ag. 

 Ocyles metea. W. 23 My .2. 

 Atrytone conspicua. L. 17? Jl. 



Atrytone zabulon. W. My.i*, l^, 3", 4^, G^, 7", S^, IS^, 19, 20 Jun. 

 Pamphila sassacus. W. 22 My., A\ 53, 63, 72, 8, 13^ Jun. 

 Anthomaster leonardus. W. Juu. ; 28 Ag. 



Pontes peckius. W. My., 1, 3^, 7^ Jun. ; B. 6-15 Jl. ; L, 8, 10, 12 Ag. 

 Redone aelna. B. 6^, 8-15^ Jl. 



Lhnochores mystic. W. 6, 8, 13^ 14^, 196, 25 Jun., 15 O. 

 Limochores himacuLa. B. 6^, 8'-Jl. 



Limochores taumas. W. My .9, 3, 5, 6S 7^, 132Jun. ; B. 8 Jl. ; L. Jl. 

 and Ag. 



Euphyes metacomet. B. 13, 16 Jl.; L. 18^, 19^ Jl., 3 Ag.2. 

 Lerema Manna. W. 4, 6, 7, 8, 133, jg Ju^. 



F. H. Sprague. 



Westward Progress of Eristalis tenax, Linn. 



Reading lately the interesting account of the American oc- 

 currence of this insect (Psyche, 1878, v. 2, p. 188), I was led 

 to examine my Syrphidae, collected during the past five years. 



I find that I have taken nine specimens of ^. tenax, now 

 fully identified as such by Mr. Burgess' description and by 

 comparison with five European instances. Of my local cap- 

 tures four are males and five females, and the dates are these : 

 1876, July 23, ? ; 1877, Sept. 2 and 16, «? ^, Sept. 23, $ , Oct. 

 14, (? <? ? , Oct. 24, 9 ; 1878, July 23, 9 • All these were 

 taken within three miles of Galena, Illinois. Thos. E. Bean. 



Galena, 111. 



The Ovipositor of Amblyohila. 



The eighth abdominal segment of Arablychila is withdrawn 

 within the abdomen. Its ventral arc in the female has a deep 

 median slit and extends beyond the dorsal arc. Enclosed 

 within this segment, and extending as far as its ventral arc, 

 there is apparent a large plate cleft into three pieces, which 

 probably represent the dorsal and pleural pieces of a ninth 

 abdominal segment. Underneath these are a pair of large and 

 stout chitinous processes having an upward curve. These 

 somewhat resemble the processes which form the ovipositor of 

 Acrididae, and probably serve likewise to bore into the ground 



