320 



aceous thickets bordering a small bog in low woods along Burnett Creek 

 (2) ; August 20, in small numbers in a Homalocenchrus oryzoides bog along 

 the outer edge of the Wabash bottoms below West Lafayette (6) ; Au- 

 gust 30, frequent in a Homalocenchrus oryzoides marsh at tbe base of the 

 bluffs on the east side of the Wabash opposite Battle Ground (16) ; Sep- 

 tember 6, several observed in border thickets surrounding a Homalocen- 

 chrus oryzoides bog at base of the bluff near Wild Cat Creek (10) ; Sep- 

 tember 13, frequent in border thickets (joe-pye weed, boneset, etc.) sur- 

 rounding a grassy bog in low woods on Burnett Creek (2) ; October 2, a 

 male taken in Muhlenuergki patch on east bank of Wabash near mouth 

 of Wild Cat (11) ; October 14, a male and a female taken along the edge of 

 a mixed Typha latifolia and Homalocenchrus oryzoides marsh on the up- 

 land northwest of West Lafayette (14). 



Conocephalus (Xiphidium) strictus (Scudder). Abundant in dry, 

 open grass land ; most frequent at higher elevations, but occasionally in 

 suitable locations in the bottoms. A common associate of Syrbula 

 a dmirabilis . 



July 22, nymphs abundant in timothy and Elymus virginicus in waste 

 lot on the Purdue Experimental Farm (3) ; July 31, adults and nymphs 

 common in tangles of blue grass and bindweed along a fence on the Purdue 

 Farm (3) ; August 1, nymphs and adults common in blue grass on roadside 

 north of West Lafayette (4) ; August 5, common in thick blue grass and 

 foxtail areas on Purdue Farm (3) ; August 20, frequent in an open pasture, 

 dominated by Tridens flava, on the outer edge of the Wabash bottoms near 

 West Lafayette (6) ; August 30, common in a roadside growth of Tridens 

 flava and Andropogon furcatus near Battle Ground (9) ; September 1, 

 frequent in grassy fields on bluffs at the head of Happy Hollow (5) ; Oc- 

 tober 3, now scarce on Purdue University Farm. 



Conocephalus {Xiphidium) saltans (Scudder). Only a single speci- 

 men, a male, taken October 14 in a cat-tail cut-grass marsh on tbe upland 

 (14) northwest of West Lafayette. It was associated with Xiphidium at- 

 tenuatum. 



Conocephalus {Xiphidium) atteuuatus Scudder. Abundant October 

 13 and 14 in the upland marsh (14) just referred to, where it swarmed 

 in the mixed cat-tail and Homalocenchrus oryzoides formation, but ap- 

 peared to be entirely lacking in the surrounding herbaceous thickets of 

 asters, goldenrods and associated plants. Only a single specimen was seen 

 elsewhere, a female taken August 20 in a rice cut-grass bog at the foot 



