A new species, Sminthurus (Sminthurus) mencenbergar Snider, is described from Canada and Michigan

Snider, Richard J

English

Valparaiso University

The Great Lakes Entomologist Volume 16 Number 4 - Winter 1983 Number 4 - Winter 1983 Article 3 December 1983 Sminthurus Mencenbergae, New Species from Canada and Michigan (Collembola: Sminthuridae) Richard J. Snider Michigan State University Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation Snider, Richard J. 1983. "Sminthurus Mencenbergae, New Species from Canada and Michigan (Collembola: Sminthuridae)," The Great Lakes Entomologist, vol 16 (4) Available at: https://scholar.valpo.edu/tgle/vol16/iss4/3 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at scholar@valpo.edu. 1983 THE GREAT LAKES ENTOMOLOGIST 115 SMINTHURUS MENCENBERGAE, NEW SPECIES FROM CANADA AND MICHIGAN (COLLEMBOLA: SMINTHURIDAE) Richard 1. Snider! ABSTRACT .-\ De'" sre.::ie5. minthurus (5minthurus) mencenbergae Snider, IS described from Canada and ~li.:higan. During the su.rnrner of 1960 I collected a single specimen of what, 23 years later, couldbe confumed as a new species. While sweeping roadside grass in St. Clair County, :\li.:h.igan. a colorful specimen of 5minthurus was taken. Repeated sweeps in the area did nO{ yield additiooal indi\iduals. The habitat was a dried pond that had g own grassy. It was an overcast day. ",ith a temperature of approximately 22°C. In the summer of 1982 a student. Lisa. ~lencenberg. enrolled in a class that visited the mountain regions of the northwestern l"nited States and Canada. She collected Collembola from tall vegetation . . -\mong the s~imens returned to my laboratory was the species I had taken in Michigan ..,.., year> e.TI"'...ier. 1be purpose of this aper is to describe that new species. 5minthurus mencenbergae, new species COLOR .-\"""1> PAITER~ (female): (Figs. 1-2). Background creamy white. Color distriNUeD as polygons. Head with purple dorso·median stripe extending from behind the eyep.a1c~ w frons. ending in line with the bases of the antennae; short, irregular patches of purple-t'fo-;!."TI !x:lo"," antennal bases. gradually fading into light purple on lower third of frons. ",im lZL"unae and dots: genae with median cluster of light purple-brown polygons; antennae unifClrnlly purple brown. becoming darker distally. Body with dark purple dorso­rnedia2 strip;: crig:inaring on anterior of bdomen and ending Y2 its length; dark purple pa...ra..'1jedial stnp:?5 forming on posterior of abdomen, becoming abruptly lighter at midp0int and euendi g to thoracic segments; lateral oblique, dark purple stripe ending at a line "'"1m terminus of mid-dorsalline. irregular patches of purple-brown forming a b oad conr:nu.mCIIJ. of stripe to thoracic region: abdominal segment V with dark macula SUIT0u.ndmg t\1...<.e 0f bodJriochri.'l:. with dark purple dorsally; abdominal segment VI with dorsa.: dart: fUIF'le patch. and terminal dark purple patch. Legs light purple, with few la.:UIUe and docs. darke5t distally. Furcula light, with light purple-brown distally on manubri!:lTI and dens. mucrones darkest. The Michigan specimen (Figs. 3-4) differs from Can.nfun in .:olor and markedly defined pattern. Head mid-dorsal stripe is o ange, blending W oli'oe bn."'90"TI: subocular pattern blackish-olive; oral region orange. Body with a broken ct...~")...medial strip;: ending at midpoint of abdomen, anal segments dark olive bla.:k. HEAD: Eye5 S - S "'ith dark pigment: ocellus D Y2 diamet r of A (Fig. 5). Antennal seg::rnem ratio 1:2:3:-: .-\..."1 IY with 17 sub segments , lateral apical papilla, sense setae and no OOIb. subseg::rnenG with or without fine setulae in the following distribution: I, II and ,\,\11 "'ith noDe. ill-2. 1\'-1. \'-Yill-l. VIII-I, IX-X-2, XI-I, XII-XIV-2, XV-I, ,\,\1-2 I Fig. 6,: .-\..."1 ill with 8 heavy. outstanding setae (Fig. 7), subapical sensillae in deep ll!vaginarion. accessory seta short, lanceolate and lying in a shallow depression (Fig . . Depmmem of Zoology. :\{ichigan State University, East Lansing, MI 48824. 1Snider: Sminthurus Mencenbergae, New Species from Canada and MichiPublished by ValpoScholar, 1983116 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 Figs. 1-2. Sminthurus mencenbergae; 1. Habitus, holotype, lateral view; 2. dorsal view. Figs. 3-4. Sminthurus mencenbergae; 3. Habitus, Michigan specimen, lateral view; 4. dorsal view. 8); ANT II with 4 ventral setulae (Fig. 9); ANT I with 3 fine distal setae and 4 dorsal setae (Fig. 10). Maxilla with 3 galeal teeth, 4 laciniallamellae (Fig. 11). Interocular cephalic setae A-G typical of genus, seta D small, lanceolate and ciliate (Fig. 12); 2 unpaired frontal setae. Frons with 2 oval organs near antennal base, 1 close to seta D, other in line with seta A, and 3rd located on lower frons in line with 2nd unpaired frontal seta; 3 posterior oval organs forming right triangle on lower gena. FORELEG: coxa with I seta and no oval organ (Fig. 13); trochanter with 3 anterior and 2 posterior setae (Fig. 14); femur with anterior oval organ, 8-9 anterior and 7-8 posterior setae (Fig. 15); anterior surface of tibiotarsus with 1 subapical oval organ, sometimes replaced with a seta, AE file with 9 setae, AL file with 8 setae, AI file with 8 setae (Fig. 16): posterior surface with 4 oval organs near external edge, setae L j , L. and Lo missing, tenent hairs acuminate (Fig. 17); pretarsus with anterior and posterior setulae; unguis with tunica and serrate anterior and posterior pseudonychia, large inner tooth: ungiculus lacks corner tooth, tapering to subapical filament, ca. 1.80 times as long as filament (Fig. 18)MESOLEG: coxa with 3 setae and oval organ (Fig. 19); trochanter with 2 oval organs, 5 anterior and 1 posterior setae (Fig. 20); femur with 12 anterior and 6 posterior setae, 1 posterior oval organ (Fig. 21); anterior surface of tibiotarsus with 1 subapical oval organ, all setal files typical of genus (Fig. 22); posterior surface with 4 oval organs near external 2The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3https://scholar.valpo.edu/tgle/vol16/iss4/312 1983 THE GREAT LAKES ENTOMOLOGIST 117 --~~ ~ ,~"\ , ~ t \/1 ~ -' \ '"\::""\\9" ~~\Y 1'-' / ~ '----' ,~ " I ,-­ r " ,/ -, )"""' -; '-" ' ::: ',,,,,'-" '--../' " ,~, ~ ~ c 5 '''",'-' ~ "~ ,,~~ ~--8 " / ""'--=-­.. i "­6 10 ~" " ':-1,; ';,J i ---­, ::,. ~ ~ --" " -- " 9 ~ ----' "­" ~ ? 15 /_-L_'_ // fiJIi 1.1 flI 13 j~ Fig;; 5-1::. S""i...~ me,..cenbergae: 5, left ocellar patch; 6, antenna! segment IV: 7, antenna! 5C-~ ill; S, antell.rull segment ill. distal sensillae; 9. antennal segment II; 10. antenna I segment L II. mati!la: C. D seta from head: B. foreleg. coxa; 14. foreleg, trochanter; 15. foreleg. femur, 3Snider: Sminthurus Mencenbergae, New Species from Canada and MichiPublished by ValpoScholar, 1983118 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 2120 Figs. 16-24. Sminthurus mencenbergae; 16. foreleg, anterior surface of tibia; 17. foreleg, posterior surface of tibia; 18. foreleg, claw; 19. mesoleg, coxa; 20. mesoieg, trochanter; 21. mesoieg, femur; 22. mesoleg. anterior surface f tibia; 23. mesoleg, posterior surface of tibia; 24. mesoleg, claw. 4The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3https://scholar.valpo.edu/tgle/vol16/iss4/31983 THE GREAT LAKES ENTOMOLOGIST 119 edge. L~ and L missing, otherwise typical of genus (Fig. 23); pretarsus with anterior and posterior setulae; unguis with tunica and serrate anterior and posterior pseudonychia, large inner tooth. strong outer basaJ tooth; unguiculus with corner tooth (sometimes two), lanceolate. ca. 2.30 times as long as filament (Fig. 24). METALEG: coxa with 4 setae and oval organ (Fig. 25); trochanter with 5 anterior setae. 1 posterior setula. and 2 oval organs (Fig. 26); femur with 12-15 anterior setae. 3 posterior setae and 2 setulae (Fig. 27); anterior surface of tibiotarsus with 7 E setae, 9 AE, AL and AI setae. 1 subapical oval organ (Fig. 28), posterior surface with 4 oval organs near external edge. 7 PE. 8 PL, 9 PI setae with Ls missing (Fig. 29). Pretarsus with anterior and posterior setulae; uniguis with tunica and anterior and posterior pseudonychia. large inner tooth. strong outer basal tooth; unguiculus with 2 corner teeth, lanceolate. ca. 5.75 times as long as filament (Fig. 30). BODY: Collophore with 1 + 1 subapical setae (Fig. 31); sacs warty. Corpus of ten­aculum with 4 setulae, ramus with 3 teeth (Fig. 32). Manubrium with 8 +8 dorsal setae, 1-1 ventral (Fig. 33). Dens with 7 Ve and 6 L setae. ID accessory seta absent (Figs. 34-35) . .\lucro with toothed outer and inner edges, ca. 2.75 times length of its seta (Figs. 36-37 I. Female circumanal setae Ao-3, P and Q typical of genus; subanal appendage acuminate. curved in lateral view, gladiforrn-serrate in ventral view (Figs. 38-39); bothriothri..1( D complex typical, P seta ciliated (Fig. 40). Body setae spine-like, serrate (Fig. 41l. Length 1.25-2.0 mm. DL\G~OSIS: Sminthurus mencenbergae Snider keys out nearest to the banksi-butch­eri:fitchi-packardi complex in Christiansen & Bellinger (1981); of those three species, it comes closest to S. banksi using their key characteristics. In Stach (1956) it comes closest to S. marginatus and S. echinatus. Sminthurus mencenbergae is easily separated from Sminrhurus marginatus Schott and Sminthurus echinatus Stach on the basis of their color patterns as well as the female subanal appendages, which i S. mencenbergae are serrate. while in the others dissected or palmate. The distinction of two corner teeth on the unguiculus. serrate subanal appendate, lateral apical papilla on the fourth antennal segment will easily separate S. mencenbergae from Sminthurus banksi Christiansen & Bellinger. Sminthurus butcheri Snider, Sminthurus jitehi Folsom and Sminthurus packardi Folsom. In a recent paper, a new species was described that superficially resembles S. mencenbergae. This species, Sminthurus jischeri Snider (1982), has a color pattern of similar configuration. two teeth on the metaunguiculus, and similar leg chaetotaxy. Howeyer. the two species can be distinguished as follows: S. mencenbergae ocelli C and D not subequal female subanal appendage serrare mucro with outer edge smooth metatibiotarsus with PI, seta collophore without 1 +-I lateral setae dens with 6 L setae S. fischeri ocelli subequal not serrate outer edge toothed or wavey PI, seta absent with 1+ lateral setae with 9 L setae It is my pleasure to name this species for Lisa Mencenberg, a student at Michigan State Cni\,ersity. who took the time to collect Collembola while on a class expedition. TYPES: Holotype (female), allotype (male) and eight paratypes in alcohol; three paratypes on slides. Ho!otype, allotype, and paratypes deposited in the Entomology ~tuseum. ~fiehig:an Stare Universitv. Collection data: Canada, Alberta, Banff National Parle Camp Two-Jacks. Eley. 2000 ft, pine forest, grass, 12.7°C, clover-dandelion patch; Ca,tIe ~teadows. Ele\,. 4500 ft, 26.6°C, clover meadow, 22 August 1982. British Columbia. ~tt. Assiniboine National Park, O'Brian Meadows Camp, Elev. 7200 ft, 12.7°C. short grass: Elev. 7000-7300 ft, 23.8°C, short grass; Sunburst Valley, 7000 ft, 5Snider: Sminthurus Mencenbergae, New Species from Canada and MichiPublished by ValpoScholar, 1983120 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 28 31 30 Figs. 25-32. Sminthurus mencenbergae; 25. metaleg, coxa; 26. metaleg, trochanter; 27. metaleg, femur; 28. metaleg, anterior surface of tibia; 29. metaieg, posterior surface of tibia; 30. metaleg, claw; 31. collophore, posterior view; 32. retinaculum. 6The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3https://scholar.valpo.edu/tgle/vol16/iss4/31983 THE GREAT LAKES ENTOMOLOGIST 121 37 39 36 38 33-41. Smimhurus mencenbergae; 33. manubrium, posterior view; 34. dens, dorsal view; 35. \-enrral \-le..... : 36. mucro, specimen from O'Brian Meadows, British Columbia; 37. mucro, spe..'i.men from St. Clair County, Michigan; 38. female subanal appendage, lateral view; 39. female subanal appendage, dorsal view; 40. bothriothrix D complex; 41. typical body seta. 7Snider: Sminthurus Mencenbergae, New Species from Canada and MichiPublished by ValpoScholar, 1983122 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 23.8°C, 1 September 1982. British Columbia, Takkakaw Falls, Elev. 6800-7000 ft, 10-12.rC, short grass, 7 September 1982, Lisa Mencenberg, collector. Michigan. St. Clair County, Lakeport State P.rrk, grass sweeping, 26°C, 2 August 1960, Richard J. Snider, collector. ACKNOWLEDGMENTS Thanks are offered to the Department of Zoology at Michigan State University for manuscript preparation. Special thanks to Dr. Steven J. Loring for his review of the manuscript, and to Dr. Peter F. Bellinger of California State University, Northridge, for his review and suggestions. LITERATURE CITED Christiansen, K. A., and P. F. Bellinger. 1981. The Collembola of North America north of the Rio Grande. P.rrt 4, Neelidae and Sminthuridae. Grinnell College, Grinnell, Iowa: 1322 p. Snider, R. J. 1982. Sminthurus jlscheri, new species from Georgia (Collembola: Sminthuridae). Florida EntomoL, 65:321-326. Stach, J. 1956. The apterygotan fauna of Poland in relation to the world-fauna of this group of insects, family; Sminthuridae. Polska Academia Nauk, 289 p. 8The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3https://scholar.valpo.edu/tgle/vol16/iss4/3

\u3ci\u3eSminthurus Mencenbergae,\u3c/i\u3e New Species from Canada and Michigan (Collembola: Sminthuridae)

ValpoScholar

The Great Lakes Entomologist 
Volume 16 
Number 4 - Winter 1983 Number 4 - Winter 
1983 
Article 3 
December 1983 
Sminthurus Mencenbergae, New Species from Canada and 
Michigan (Collembola: Sminthuridae) 
Richard J. Snider 
Michigan State University 
Follow this and additional works at: https://scholar.valpo.edu/tgle 
 Part of the Entomology Commons 
Recommended Citation 
Snider, Richard J. 1983. "Sminthurus Mencenbergae, New Species from Canada and Michigan 
(Collembola: Sminthuridae)," The Great Lakes Entomologist, vol 16 (4) 
Available at: https://scholar.valpo.edu/tgle/vol16/iss4/3 
This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. 
It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. 
For more information, please contact a ValpoScholar staff member at scholar@valpo.edu. 
1983 THE GREAT LAKES ENTOMOLOGIST 115 
SMINTHURUS MENCENBERGAE, NEW SPECIES FROM CANADA 

AND MICHIGAN (COLLEMBOLA: SMINTHURIDAE) 

Richard 1. Snider! 
ABSTRACT 
.-\ 
De'" sre.::ie5. minthurus (5minthurus) mencenbergae Snider, IS described from 
Canada and ~li.:higan. 
During the su.rnrner 
of 1960 I collected a single specimen of what, 23 years later, could
be confumed as a new species. While sweeping roadside grass in St. Clair County, 
:\li.:h.igan. a colorful specimen of 5minthurus was taken. Repeated sweeps in the area did 
nO{ 
yield additiooal 
indi\iduals. The habitat was a dried pond that had g own grassy. It was 
an overcast day. ",ith a temperature of approximately 22°C. In the summer of 1982 a 
student. Lisa. ~lencenberg. enrolled in a class that visited the mountain regions of the 
northwestern l"nited States and Canada. She collected Collembola from tall vegetation . 
. -\mong the s~imens returned to my laboratory was the species I had taken in Michigan 
..,.., 
year> 
e.TI"'...ier. 1be purpose of this aper is to describe that new species. 
5minthurus mencenbergae, new species 
COLOR .-\"""1> PAITER~ (female): (Figs. 1-2). Background creamy white. Color 
distriNUeD as polygons. Head with purple dorso·median stripe extending from behind the 
eyep.a1c~ w frons. ending in line with the bases of the antennae; short, irregular patches 
of purple-t'fo-;!."TI !x:lo"," 
antennal 
bases. gradually fading into light purple on lower third of 
frons. ",im lZL"unae and dots: genae with median cluster of light purple-brown polygons; 
antennae unifClrnlly purple brown. becoming darker distally. Body with dark purple dorso­
rnedia2 
strip;: crig:inaring 
on anterior of bdomen and ending Y2 its length; dark purple 
pa...ra..'1jedial stnp:?5 forming on posterior of abdomen, becoming abruptly lighter at 
midp0int and euendi g to thoracic segments; lateral oblique, dark purple stripe ending at 
a line "'"1m terminus of mid-dorsalline. irregular patches of purple-brown forming a b oad 
conr:nu.mCIIJ. of 
stripe 
to thoracic region: abdominal segment V with dark macula 
SUIT0u.ndmg t\1...<.e 0f bodJriochri.'l:. with dark purple dorsally; abdominal segment VI with 
dorsa.: dart: fUIF'le patch. and terminal dark purple patch. Legs light purple, with few 
la.:UIUe and docs. darke5t distally. Furcula light, with light purple-brown distally on 
manubri!:lTI and dens. mucrones darkest. The Michigan specimen (Figs. 3-4) differs from 
Can.nfun in 
.:olor 
and markedly defined pattern. Head mid-dorsal stripe is o ange, 
blending W oli'oe bn."'90"TI: subocular pattern blackish-olive; oral region orange. Body with a 
broken ct...~")...medial strip;: ending at midpoint of abdomen, anal segments dark olive 
bla.:k. 
HEAD: 
Eye5 S 
- S "'ith dark pigment: ocellus D Y2 diamet r of A (Fig. 5). Antennal 
seg::rnem 
ratio 
1:2:3:-: .-\..."1 IY with 17 sub segments , lateral apical papilla, sense setae 
and no OOIb. subseg::rnenG with or without fine setulae in the following distribution: I, II 
and ,\,\11 "'ith noDe. ill-2. 1\'-1. \'-Yill-l. VIII-I, IX-X-2, XI-I, XII-XIV-2, XV-I, 
,\,\1-2 I Fig. 6,: .-\..."1 ill with 8 heavy. outstanding setae (Fig. 7), subapical sensillae in 
deep 
ll!vaginarion. accessory seta short, lanceolate 
and lying in a shallow depression (Fig . 
. Depmmem of Zoology. :\{ichigan State University, East Lansing, MI 48824. 
1
Snider: Sminthurus Mencenbergae, New Species from Canada and Michi
Published by ValpoScholar, 1983
116 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 
Figs. 1-2. Sminthurus mencenbergae; 1. Habitus, holotype, lateral view; 2. dorsal view. 
Figs. 3-4. Sminthurus mencenbergae; 3. Habitus, Michigan specimen, lateral view; 4. dorsal view. 
8); ANT II with 4 ventral setulae (Fig. 9); ANT I with 3 fine distal setae and 4 dorsal setae 
(Fig. 10). Maxilla with 3 galeal teeth, 4 laciniallamellae (Fig. 11). Interocular cephalic 
setae A-G typical of genus, seta D small, lanceolate and ciliate (Fig. 12); 2 unpaired 
frontal setae. Frons with 2 oval organs near antennal base, 1 close to seta D, other in line 
with seta A, and 3rd located on lower frons in line with 2nd unpaired frontal seta; 3 
posterior oval organs forming right triangle on lower gena. 
FORELEG: coxa with I seta and no oval organ (Fig. 13); trochanter with 3 anterior and 2 
posterior setae (Fig. 14); femur with anterior oval organ, 8-9 anterior and 7-8 posterior 
setae (Fig. 15); anterior surface of tibiotarsus with 1 subapical oval organ, sometimes 
replaced with a seta, AE file with 9 setae, AL file with 8 setae, AI file with 8 setae (Fig. 
16): 
posterior surface with 4 oval organs near external edge, setae 
L j , L. and Lo missing, 
tenent hairs acuminate (Fig. 17); pretarsus with anterior and posterior setulae; unguis with 
tunica and serrate anterior and posterior pseudonychia, large inner tooth: ungiculus lacks 
corner tooth, tapering to subapical filament, ca. 1.80 times as long as filament (Fig. 18)
MESOLEG: coxa with 3 setae and oval organ (Fig. 19); trochanter with 2 oval organs, 
5 anterior and 1 posterior setae (Fig. 20); femur with 12 anterior and 6 posterior setae, 1 
posterior oval organ (Fig. 21); anterior surface of tibiotarsus with 1 subapical oval organ, 
all setal files typical of genus (Fig. 22); posterior surface with 4 oval organs near external 
2
The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3
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12 
1983 THE GREAT LAKES ENTOMOLOGIST 117 
--~~ ~ ,~"\ , ~ 
t 
\/1 ~ -' \ '"\::""\\9" ~~\Y 1'-' / ~ '----' ,~ " I ,-­ r " ,/ -, )"""' -; '-" ' ::: ',,,,,'-" 
'--../' 
" 
,~, ~ ~ c 5 '''",'-' ~ "~ ,,~~ 
~--
8 
" / 
""'--=-­
.. 
i 
"­
6 
10 
~" 
" 
':-1,; ';,J i 
---­
, ::,. 
~ ~ 
--" " 
-- " 9 ~ ----' "­
" 
~ 
? 
15 
/
_-L_'_ 
// 
fiJIi 
1.1 flI 
13 
j~ 

Fig;; 5-1::. S""i...~ me,..cenbergae: 5, left ocellar patch; 6, antenna! segment IV: 7, antenna! 
5C-~ ill; S, antell.rull 
segment 
ill. distal sensillae; 9. antennal segment II; 10. antenna I segment 
L II. mati!la: C. D seta from head: B. foreleg. coxa; 14. foreleg, trochanter; 15. foreleg. femur, 
3
Snider: Sminthurus Mencenbergae, New Species from Canada and Michi
Published by ValpoScholar, 1983
118 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 
21
20 

Figs. 16-24. Sminthurus mencenbergae; 16. foreleg, anterior surface of tibia; 17. foreleg, posterior 
surface of tibia; 18. foreleg, claw; 19. mesoleg, coxa; 20. mesoieg, trochanter; 21. mesoieg, 
femur; 22. mesoleg. anterior surface f tibia; 23. mesoleg, posterior surface of tibia; 24. mesoleg, 
claw. 
4
The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3
https://scholar.valpo.edu/tgle/vol16/iss4/3
1983 THE GREAT LAKES ENTOMOLOGIST 119 
edge. L~ and L missing, otherwise typical of genus (Fig. 23); pretarsus with anterior and 
posterior setulae; unguis with tunica and serrate anterior and posterior pseudonychia, large 
inner tooth. strong outer basaJ tooth; unguiculus with corner tooth (sometimes two), 
lanceolate. ca. 2.30 times as long as filament (Fig. 24). 
METALEG: 
coxa with 4 setae and oval organ (Fig. 25); trochanter with 5 anterior 
setae. 1 posterior setula. and 2 oval organs (Fig. 26); femur with 12-15 anterior setae. 3 
posterior setae and 2 setulae (Fig. 27); anterior surface 
of tibiotarsus with 7 E setae, 9 AE, 
AL and AI setae. 1 subapical oval organ (Fig. 28), posterior surface with 4 oval organs 
near external edge. 7 PE. 8 PL, 9 PI setae with Ls missing (Fig. 29). Pretarsus with 
anterior and posterior setulae; uniguis with tunica and anterior and posterior 
pseudonychia. large inner tooth. strong outer basal tooth; unguiculus with 2 corner teeth, 
lanceolate. ca. 5.75 times as long as filament (Fig. 30). 
BODY: 
Collophore with 1 
+ 1 subapical setae (Fig. 31); sacs warty. Corpus of ten­
aculum with 4 setulae, ramus with 3 teeth (Fig. 32). Manubrium with 8 +8 dorsal setae, 
1-1 
ventral (Fig. 33). Dens with 7 
Ve and 6 L setae. ID accessory seta absent (Figs. 
34-35) . .\lucro with toothed outer and inner edges, ca. 2.75 times length of its seta (Figs. 
36-37 I. Female circumanal setae Ao-3, P and Q typical of genus; subanal appendage 
acuminate. curved in lateral view, gladiforrn-serrate in ventral view (Figs. 38-39); 
bothriothri..1( 
D complex typical, P seta ciliated (Fig. 
40). Body setae spine-like, serrate 
(Fig. 41l. Length 1.25-2.0 mm. 
DL\G~OSIS: Sminthurus mencenbergae Snider keys out nearest to the banksi-butch­
eri:fitchi-packardi complex in Christiansen & Bellinger (1981); of those three species, it 
comes closest to S. banksi using their key characteristics. In Stach (1956) it comes closest 
to S. marginatus and S. echinatus. Sminthurus mencenbergae is easily separated from 
Sminrhurus marginatus Schott and Sminthurus echinatus Stach on the basis of their color 
patterns as well as the female subanal appendages, which i S. mencenbergae are serrate. 
while in the others dissected or palmate. The distinction of two corner teeth on the 
unguiculus. serrate subanal appendate, lateral apical papilla on the fourth antennal 
segment will easily separate S. mencenbergae from Sminthurus banksi Christiansen & 
Bellinger. Sminthurus butcheri Snider, Sminthurus jitehi Folsom and Sminthurus packardi 
Folsom. In a recent paper, a new species was described that superficially resembles S. 
mencenbergae. This species, Sminthurus jischeri Snider (1982), has a color pattern of 
similar configuration. two teeth on the metaunguiculus, and similar leg chaetotaxy. 
Howeyer. 
the two species can 
be distinguished as follows: 
S. mencenbergae 
ocelli C and D not subequal 
female subanal appendage 
serrare 
mucro with outer edge smooth 
metatibiotarsus with PI, seta 
collophore without 1 
+-I lateral 
setae 
dens with 6 L setae 
S. fischeri 
ocelli subequal 
not serrate 
outer edge toothed or wavey 
PI, seta absent 
with 1+ lateral setae 
with 9 L setae 
It 
is my pleasure 
to name this species for Lisa Mencenberg, a student at Michigan State 
Cni\,ersity. who took the time to collect Collembola while on a class expedition. 
TYPES: 
Holotype (female), allotype (male) and eight paratypes 
in alcohol; three 
paratypes on slides. Ho!otype, allotype, and paratypes deposited in the Entomology 
~tuseum. ~fiehig:an 
Stare Universitv. Collection data: Canada, Alberta, Banff National Parle 
Camp Two-Jacks. Eley. 2000 ft, pine forest, grass, 12.7°C, clover-dandelion patch; 
Ca,tIe 
~teadows. Ele\,. 4500 ft, 26.6°C, clover meadow, 22 August 1982. British 
Columbia. ~tt. Assiniboine National Park, O'Brian Meadows Camp, Elev. 7200 ft, 
12.7°C. short grass: Elev. 7000-7300 ft, 23.8°C, short grass; Sunburst Valley, 7000 ft, 
5
Snider: Sminthurus Mencenbergae, New Species from Canada and Michi
Published by ValpoScholar, 1983
120 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 
28 
31 
30 
Figs. 25-32. Sminthurus mencenbergae; 25. metaleg, coxa; 26. metaleg, trochanter; 27. metaleg, 
femur; 28. metaleg, anterior surface of tibia; 29. metaieg, posterior surface of tibia; 30. metaleg, 
claw; 31. collophore, posterior view; 32. retinaculum. 
6
The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3
https://scholar.valpo.edu/tgle/vol16/iss4/3
1983 THE GREAT LAKES ENTOMOLOGIST 121 
37 
39 
36 
38 
33-41. Smimhurus mencenbergae; 33. manubrium, posterior view; 34. dens, dorsal view; 35. 
\-enrral \-le..... : 36. mucro, specimen from O'Brian Meadows, British Columbia; 37. mucro, 
spe..'i.men 
from St. Clair County, Michigan; 38. female subanal appendage, lateral view; 39. 
female subanal appendage, dorsal view; 40. bothriothrix D complex; 41. typical body seta. 
7
Snider: Sminthurus Mencenbergae, New Species from Canada and Michi
Published by ValpoScholar, 1983
122 THE GREAT LAKES ENTOMOLOGIST Vol. 16, No.4 
23.8°C, 1 September 1982. British Columbia, Takkakaw Falls, Elev. 6800-7000 ft, 
10-12.rC, 
short grass, 
7 September 1982, Lisa Mencenberg, collector. Michigan. St. 
Clair County, Lakeport State P.rrk, grass sweeping, 26°C, 2 August 1960, Richard J. 
Snider, collector. 
ACKNOWLEDGMENTS 
Thanks are offered to the Department of Zoology at Michigan State University for 
manuscript preparation. Special thanks to Dr. Steven J. Loring for his review of the 
manuscript, and to Dr. Peter F. Bellinger of California State University, Northridge, for his 
review and suggestions. 
LITERATURE CITED 
Christiansen, K. A., and P. F. Bellinger. 1981. The Collembola of North America north of 
the 
Rio Grande. 
P.rrt 4, Neelidae and Sminthuridae. Grinnell College, Grinnell, Iowa: 
1322 p. 
Snider, R. 
J. 1982. Sminthurus jlscheri, new species from Georgia (Collembola: 
Sminthuridae). Florida EntomoL, 65:321-326. 
Stach, J. 1956. The apterygotan fauna of Poland in relation to the world-fauna of this 
group of insects, family; Sminthuridae. Polska Academia Nauk, 289 p. 
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The Great Lakes Entomologist, Vol. 16, No. 4 [1983], Art. 3
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\u3ci\u3eSminthurus Mencenbergae,\u3c/i\u3e New Species from Canada and Michigan (Collembola: Sminthuridae)

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