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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 the 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 Muhlenbergia 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 V'ypha 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 
admirabilis. 
July 22, nymphs abundant in timothy and Vlymus virginicus ii 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, how scarce on Purdue University Farm. 
Conocephalus (Xiphidium) saltans (Seudder). Only a single speci- 
men, a male, taken October 14 in a cat-tail cut-grass marsh on the upland 
(14) northwest of West Lafayette. It was associated with XYiphidium at- 
tenwatum. 
Conocephalus (Xiphidium) attenwatus 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 
