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.