I I prothorax well developed prothorax reduced
eyes absent eyes present abd IV long abd IV short
without anal spines with ana~ spines
&'.dJ] anus v!ntral anus terminal
Onychiurus Onychiurus IsotOlllodes Po1somia I'roisotOlll& fimetarius armatus teeis guadriocu1ata frisoni
unguic:u1us present unguicu1us absent sc:a1es present sc:a1es sent body marbled body not marbled
Hypogastrura Hypogastrura Hypogastrura manubrialis armata pseudar.ata
I I i ed ns with ventral sc:a1es dens without- ventral sc:a1es antenna antenna
6·segmented 4-segmented
Orc:bes.lla alboaa epidoc:yrtus , c:urvic:011is !!!!. platani fora alnsIr.l
I I body not striped ao.e body aegmenta striped all body segmenta atriped
EntOlllObrya griseo1ivata IDtOlllObrya atroc:inc:ta IntOlllObrya nivalis
.46
COLLEMBOLA: PICTORIAL KEY TO COMMON DOMESTIC SPECIES Harold George Scott, and Che ster J. Stojanovich
L
---
-----
----- ---
ocelli, tenent haic_ , , , unguiculus __ _ , , unguis_ - " " "- tibiotarsus",- ___ _
"" ..... oce lli
:- - - thorax II
- - _abdomen
co llophore ...........
tenaculum_ - -
manubrium_
--- , , ,furcula
/dens__
mucro___ - - - - - - - - - - -
SURORDER ARTHROPLEONA
mandible ~.antenna .... .... .... , --- ...... ....
..... .....
"...ocelli" " ,- ........
" " ,-
/
,1#co llophore,
I I
I
tenaculum____ _
"anal papilla_'" .........manubrium_ -- " --- '"
dens_________ _ ..... , ...... I,
I ...... I
.....
___ - ~furcl1lamucro_ - - - - - - - - - ---- tibiotarsus
SURORDER SYMPHYPLEONA
47.
COLLEMBOLA DIAGRAMS Harold George Scott
body elongate, s~gmented fused
Suborder SYMPHYPLEONA SMINTHURIDAE
antenna longer antenna shorter than head than head
(V .1-1________N_E_E-,LlNAE
furcula lot reaching furcula r1eaching ant IV subequal to ant IVI shorter
beyond collophore beyond collophore or longer than III than III
subglobose,
developed I
reduced
PODURIDAE ENTOMOBRYIDAE
PODURlNAE DICYRTOMINAE I
ant III sense organ ant III sense organ thoracic sutures thoracic sutures with rods and cones with rods only indefinite evident eyes absent eyes usually present collophore warty collophore smooth
SMINTHURINAE SMINTHURIDlNAE
abd IV not twice abd IV at least III (or terminal twice III~0:t!-1I segmen ts fused)
HYPOGASTRURlNAE NEANURINAE I
ant III and IV subsegmented ant III and IV not
~'!iI"i!II"!iilji"'Ii!i"""''i ~
TClfOCERlNAE ISOTOMlNAE ENTOMOBRYINAE
I mandible with mandible without molar surface molar surface
I I
~
.48
COLLEMBOLA: PICTORIAL KEY TO WORLD SUBFAMILIES Harold George Scott, Ph.D.
SUBFAMILIES PODURINAE, HYPOGASTRURINAE, AND ONYCHIURINAE
,;)1 PODURlNAE HYPOGASTRURlNAE I I
GZ~ __ postantenna1 organ eyes present eyes absent
~"~--- __postantennal
organ.... "
Podura aquatica Linnaeus only species in subfamily
ONYCHIURINAE postantennal postantennal
tubercles 4-12 tubercles I unguiculus we 11 unguiculus reduced developed or absent
Willemia Stachiomella
Onychiurus postantennal postantennal organ present organ absent
I body slender body stout
Xenylla
Ipostantennal tubercles I
Tullbt:rgia
postantennal tubercles 4-8
)~> '-~'~>'..
("
)) r f
, r r , r " rr
'\ _...__ ~-:."'\... ' ... r
I Ieyes 2 and 2 eyes 8 and 8 anal spines present anal spines absent
furcula absent furcula present
Mesachorutes Hypogastrura Know1tone 11a
49.
COLLEMBOLA: PICTORIAL KEY TO NEARCTIC GENERA Harold George Scott. Ph.D.
SUBFAMILY NEANURINAE
abd VI large. bilobed abd VI small, rounded segmental segmental tubercles absenttubercles nt
NEANURINI PSEUDACHORUTINI I I
segmental segmental anal spines present anal spines absent tubercles large tuberc les small
furcula present fu rcula absen t Neanura Neanurodes
i anal spines 2 anal spines 3·5 anal spines 8
maxilla untoothed maxilla toothed
Xenyllodes Friesea Prospinanura
eyes 5 and 5 eyes 6 and 6 eyes 8 and 8
Microgastrura I I
postantennal postantennal with buccal cone without buccal cone tubercles 8 tubercles 4-5
Logacanura Odontella Brachystomella Pseudachorutes
.50
COLLEMBOLA: PICTORIAL KEY TO NEARCTIC GENERA Harold George Scott. Ph.D.
SUBFAMILY ISOTOMINAE - Part A
I I
abd V and VI abd V and VI anal spines 0 anal spines 2 ankylosed not ankylosed
Archisotoma
unguiculus unguiculus present absent
anal ... spines 4
furcula short
anal spines
--() 8 anal spines 0-2
Weberacantha
Tetracanthella
I fringed bothriotricha present
~---
I I furcula long furcula absent furcula present
~. QI[Spinisotoma Anurophorus
, fringed bothriotricha absent
t ge i; ' •
mucro with 3-4 teeth mucro with 5 teeth
Biacanthella
postantennal organ and eyes absent
Isotomurus Axelsonia Folsomina
postantennal organ present eyes present
V or absent
~ I
see part B
51.
COLLEMBOLA: PICTORIAL KEY TO NEARCTIC GENERA Harold George Scott, Ph.D.
I I anus ventral anus terminal
I I manubrium with manubrium al.>d suorter abd shorter hooks without hooks than III
Isotomodes Folsomia I I
mucro with 0-3 teeth mucro with 4 teeth mucro with 2 teeth mucro with 3-4 teeth
Proisotoma Metisotoma
eyes 8 and 8 eyes 2 and 2 eyes absent to 4 and 4
~~ .. ~
Folsomides Micrisotoma
body segments unguis tunicate unguis not tunicatebulging ..
Isotomina Guthriella AgreniaI
with dental spines without dental spines mucro with 3 teeth .. mucro with 4 teeth
~~~~ ~ ~.;;;;~~~ Semicerura Tomocerura Isotoma
.52
COLLEMBOLA: PICTORIAL KEY TO NEARCTIC GENERA
SUBFAMILY ISOTOMINAE - Part B
continued from part A
Harold George Scott, Ph.D.
SUBFAMILIES TOMOCERINAE AND ENTOMOBRYINAE TOMOCERINAE ENT(!{OBRYINAE
postantennal organ organ dentes with large dentes without large present fringed scales fringed scales
Tomolonus Tomocerus Cyphoderus j I [ I
ant 4-segxnented ant 4-segmented ant 4-segmented ant 5-segmented ant 6-segmented 4th seg annulate 4th seg annulate seg not annulate dark eyepatch no dark eyepatch
Troglosinella Heteromurus Orchesella
I I I Iscales present scales present scales present scales absent scales absent mucro l-toothed mucro 2-toothed mucro O-toothed mucro without mucro with
basal spine basal spine
Drepanocyrtus I j
dens with ventral dens without ventral dens with spines dens without spines scales
~~--==:::jl:A:I!JAt,a?: ~-----*--== -~
Sira Homidia--I I j
eyes 8 and 8 eyes 5 and 5 ant II longer ant II not or fewer than IV longer than IV
Lepidocyrtus Pseudosinella Isotobryoides I I I
eyes 4 and 4 ot' eyes 8 and 8 eyes 8 and 8 eyes 8 and 8; no tibiofewer or absent tibiotarsal patch no tibiotarsal patch tarsal patch; mucro
mucro with anteapical without anteapical tooth .. tooth ~~~
~ -:=-;?5~ Sinella Entomobrya Drepanur&
5.3.
COLLEMBOLA: PICTORIAL KEY TO NEARCTIC GENER.A
FAMILY SMINTHURIDAE
NEELlNAE DICYRTa-tlNAE I i I i I
ant III longer ant III not ant III and claw with claw without than IV longer than IV IV fused tunica tunica
Neelides Kegalothorax
SHINTHURIDINAE Dicyrtomina I I I
abd V and VI abd V and VI ant III and IV ant III or IV or ankylosed separated not subsegmented ... bo,' 'Ub"gme~
Dicyrtoma 0::===:::::::/
Ptenothrix
SHINTIlURlNAE I )
ant IV ant IV not subsegmented subsegmentedSminthurides
ant IV not ant IV subsegmented subsegmented
i ant III with -ant III without strong setae strong setae
I tenent hairs absent tenent hairs present _
Sminthurus I
0-1 tenent hairs several tenent hairs
I bothriotricha present
bothriotricha absent
claw tunicate claw not tunicate
Ketakatianna Sphyrotheca Pararrhopali tes
.54
COLLEMBOLA: PICTORIAL KEY TO NEARCTIC GENERA Harold George Scott, Ph.D.