16 Transactions of the Academy of Science of St. Louis 
Orchesella hexfasciata (Harvey), 1895 
Figures 53-56; length 1.8-2 mm.; yellow with dark purple 
markings; mesonotum with a dark purple transverse band an- 
teriorly and laterally; metanotum with a dark transverse area 
anteriorly and widened laterally in two places to unite with two 
stripes across each side of the body; a black transverse stripe 
extending across the head near the antennae; and an irregular 
dark area present on each side of the head; antennae about 
three times the length of the head, segments to each other as 
3, 14, 5, 17, 20, 26; a dark area near the middle of the first 
antennal segment, apical third of the second segment pigmented, 
third segment without pigment and obscurely separated from the 
fourth, distal half of the fourth dark; fifth and sixth obscurely 
annulated and entirely pigmented except for a small proximal 
part of each segment; dorsal side of fourth abdominal segment 
about twice the length of the third; ventral tube about two- 
thirds the length of the dentes; mucro with apical and subapical 
teeth and a proximal seta; tenent hair present; body covered 
with short curved setae. 
This species is frequently found in the woods underneath 
leaves and in humus. ‘This species has been recorded in Illinois, 
Louisiana, Massachusetts, Maine, New Hampshire, New York, 
Virginia, Wisconsin, Ontario. Records: July 25, 1937, Ranken, 
Missouri, (E. D. Bueker). 
Orchesella ainsliei Folsom, 1924 
Figures 62-65; length 1.3-2 mm. ; yellow or brownish yellow 
with dark blue markings; body with two irregular lateral stripes 
on each side extending from the prothorax to the second ab- 
dominal segment, one lateral stripe extending weakly to the eye- 
spots, mostly black dorsally and laterally from the second ab- 
dominal segment posteriorly but interrupted by narrow yellow 
bands; legs mostly light yellow except for irregular dark areas 
on the precoxal and coxal segments; antennae about three times 
