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{{Short description|Species of cockroach}} | |||
{{Taxobox | |||
{{Speciesbox | |||
| image = SevenSpotRoach2.jpg | | image = SevenSpotRoach2.jpg | ||
| image_caption = |
| image_caption = | ||
| image2 = SevenSpotRoach1.jpg | | image2 = SevenSpotRoach1.jpg | ||
| image2_caption = |
| image2_caption = Male above, female below (with shorter antennae) | ||
| |
| genus = Therea | ||
⚫ | | species = petiveriana | ||
| phylum = ]a | |||
⚫ | | authority = (], ])<ref name=marshall>{{Cite journal| volume = 78| issue = 4| pages = 375–396| last1 = Judith A. Marshall| title = The orthopteroid insects described by Linnaeus, with notes on the Linnaean collection| journal = ]| year = 1975|doi=10.1111/j.1096-3642.1975.tb02266.x|first1=Judith A.}}</ref> | ||
| classis = ]a | |||
⚫ | | synonyms = ''Corydia petiveriana''<br/>''Cassida petiveriana'' | ||
| ordo = ] | |||
| synonyms_ref = <ref>{{cite web|url=http://www.zoobank.org/?id=21207976|title=ZooBank}}</ref> | |||
| familia = ] | |||
| genus = '']'' | |||
⚫ | | species = |
||
| binomial = ''Therea petiveriana'' | |||
⚫ | | |
||
| journal = Zoological Journal of the Linnean Society| date = 1975|doi=10.1111/j.1096-3642.1975.tb02266.x}}</ref><ref>{{cite book|ps=|title=Nouveau Systeme des Blattaires|author=de Wattenwyl, Charles Brunner|year=1865|page=34|url=http://www.archive.org/stream/nouveausystmed00brun#page/34/mode/1up}}</ref><ref>Linnaeus, C. 1766. Syst. Nat. II p. 577 n. 28</ref> | |||
⚫ | | synonyms = ''Corydia petiveriana''<br/>''Cassida petiveriana'' |
||
}} | }} | ||
'''''Therea petiveriana''''', variously called the |
'''''Therea petiveriana''''', variously called the '''desert cockroach''', '''seven-spotted cockroach''', '''domino cockroach''', or '''Indian domino cockroach''', is a species of ] cockroach found in southern ]. They are members of a ] group within the cockroaches.<ref>{{cite journal|author=Grandcolas, P.|year= 1993|title= Le genre ''Therea'' Billberg, 1820: position phylogenetique, nouvelles especes, repartition, valence ecologique (Dictyoptera, Blattaria, Polyphaginae)|journal=Canadian Journal of Zoology|volume= 71|issue=9|pages=1816–1822|doi=10.1139/z93-259}}</ref><ref>{{cite journal|title= What does ''Cryptocercus kyebangensis'', n.sp. (Dictyoptera: Blattaria: Polyphagidae) from Korea reveal about ''Cryptocercus'' evolution? A study in morphology, molecular phylogeny, and chemistry of tergal glands|author=Philippe Grandcolas, Yung Chul Park, Jae C. Choe, Maria-Dolors Piulachs, Xavier Bellés, Cyrille D'Haese, Jean-Pierre Farine, Rémy Brossut and Jena-Pierre Farine|journal= Proceedings of the Academy of Natural Sciences of Philadelphia|volume=151|year=2001|pages= 61–79|doi= 10.1635/0097-3157(2001)1512.0.CO;2|s2cid=13719378 }}</ref> This somewhat roundish and contrastingly marked cockroach is mainly found on the ground in ] habitats where they may burrow under leaf litter or loose soil during the heat of the day.<ref name=ocelli>{{cite journal|author1=Livingston, D |author2=M Rajambal |name-list-style=amp |year=1980|title= Association of ocelli with the neuroendocrine system of ''Therea petiveriana'' (L.) (Blaberoidea: Polyphagidae) |journal=Proc. Indian Acad. Sci. (Anim. Sci.) |volume=89|issue=2|pages=147–153 |url=http://www.ias.ac.in/jarch/procb/89b/147-154.pdf |doi=10.1007/BF03179155|s2cid=84009370 }}</ref> | ||
] | |||
== |
==Description== | ||
] |
]]] | ||
The black and white pattern of adults is believed to have evolved to ] the pattern of the aggressive ] '']'' that has strong defenses, including the ability to spray chemical irritants.<ref>{{cite web|url=http://www.coleop-terra.com/adaptation.html#mimicry|title=Mimicry}}</ref> The upperside of the abdomen is orange-yellow, but is hidden by the ]. The spots on the asymmetrical tegmina are placed so that when closed the spots appear symmetrical. The right tegmen |
The black and white pattern of adults is believed to have evolved to ] the pattern of the aggressive ] '']'' that has strong defenses, including the ability to spray chemical irritants.<ref>{{cite web|url=http://www.coleop-terra.com/adaptation.html#mimicry|title=Mimicry|url-status=dead|archiveurl=https://web.archive.org/web/20110708174723/http://www.coleop-terra.com/adaptation.html#mimicry|archivedate=2011-07-08}}</ref> The upperside of the abdomen is orange-yellow, but is hidden by the ]. The spots on the asymmetrical tegmina are placed so that when closed, the spots appear symmetrical. The right tegmen lobe is bright orange-yellow. The species has been said to be one of the few cockroaches with "grace and beauty".<ref>{{cite book|author=Sharp, David|year=1895|title=The Cambridge Natural History. Volume 5.|publisher=Macmillan and Co. London|pages=233–234|url=https://archive.org/stream/cu31924024535472#page/n249/mode/2up}}</ref> The head is bent back underneath the pronotal shield (hypognathous) and the ] (simple eyes) face forward, helping sense light and thereby time, and they forage actively during early morning and late evening.<ref name=ocelli/> | ||
== |
==Reproduction== | ||
⚫ | Once a female has copulated with a male, she does not allow other males to approach, kicking them away with her hind legs.<ref>{{cite journal|vauthors=Livingstone D, Ramani R|name-list-style=amp |year= 1978 |title=Studies on the reproductive biology|journal= Proc. Indian Acad. Sci.|volume=87|issue=9 |pages=229–247|doi=10.1007/BF03179011 |s2cid=81843029 }}</ref> The eggs are laid in ].<ref>{{cite journal |author1=Ananthasubramanian, K.S. |author2=T.N. Ananthakrishnan |name-list-style=amp |year=1959|title= The structure of the ootheca and egg laying habits of ''Corydia petiveriana'' L |journal=Indian Journal of Entomology |volume=21|pages=59–64}}</ref> Up to 13 ]e are produced by a female over 3 to 40 days<ref name=ocelli/> (blocking the ocelli of the females has been found to inhibit the laying of eggs<ref name=ocelli/>). The oothecae are produced as in other cockroaches by the secretions from the asymmetrical colleterial glands of the females.<ref>{{cite journal|title=The fine structure of colleterial glands in two cockroaches and three termites, including a detailed study of ''Cryptocercus punctulatus'' (Blattaria, Cryptocercidae) and ''Mastotermes darwiniensis'' (Isoptera, Mastotermitidae)|journal=Arthropod Structure & Development |volume=37|issue=1|year=2008|pages=55–66|author=Annie Courrent, André Quennedey, Christine A. Nalepa, Alain Robert, Michael Lenz and Christian Bordereau|doi=10.1016/j.asd.2007.03.004|pmid=18089127 }}</ref> Once the ootheca is extruded it is deposited in suitably moist leaf litter.<ref>{{cite book|page=123|title=Cockroaches: ecology, behavior, and natural history|author1=William J. Bell |author2=Louis Marcus Roth |author3=Christine A. Nalepa |publisher=Johns Hopkins University Press|year=2007|isbn=978-0-8018-8616-4}}</ref> Nymphs lead a life hidden below the ground and may go as deep as 30 cm during the ].<ref>{{cite journal|author=Bhoopathy, S.|year=1997|title=Microhabitat preferences among four species of cockroaches|journal=Journal of Nature Conservation|volume = 9|pages=259–264}}</ref> | ||
==Taxonomy== | |||
⚫ | Once a female has copulated with a male, she does not allow other males to approach, kicking them away with her hind legs.<ref>{{cite journal| |
||
⚫ | This is the ] for the genus ''Therea''. The species epithet is after ] (1663–1718), who obtained specimens from ] and its vicinity (probably from the surgeon at ], either ] or more likely ]<ref>{{cite journal|url=https://www.biodiversitylibrary.org/page/47754685|pages=843–862| title=An account of Mr Samuel Brown, his Third Book of East India Plants, with their Names Vertues Description, etc. |author=Petiver, James|journal=Philosophical Transactions|volume=22| issue=271}}</ref>). ] placed the species under ''Cassida'' and described ''C. petiveriana'' and another that he called ''C. septemguttata'', now considered a ].<ref name=marshall/> | ||
== |
==Communication== | ||
⚫ | Like other cockroaches, ''T. petiveriana'' uses chemical ] to communicate with each other. When disturbed, they are said to raise their wings and evert lateral glands on the second and third ]s. Their glandular secretions were found to contain volatile compounds N-3-methylbutylacetamide (MBA) and N-3-methylbutylpropanamide (MBP), making up nearly 60% of the volatile fraction. These chemicals appeared to induce alarm behaviour.<ref>{{cite journal|author=Farine, J. P., Semon, E., Everaerts, C., Abed, D., Grandcolas, P. and Brossut, R.|year=2002|title=Defensive secretion of ''Therea petiveriana'': chemical identification and evidence of an alarm function|journal=J. Chem. Ecol.|volume=28|pages=1629–1640|url=http://www.mnhn.fr/oseb/Grandcolas/Grandcolas_fichiers/Fetal02.pdf|doi=10.1023/A:1019932630787|pmid=12371815|issue=8|s2cid=6826801 |url-status=dead|archiveurl=https://web.archive.org/web/20110612104226/http://www.mnhn.fr/oseb/Grandcolas/Grandcolas_fichiers/Fetal02.pdf|archivedate=2011-06-12}}</ref> | ||
⚫ | This is the ] for the genus ''Therea''. |
||
== Communication == | |||
⚫ | Like other cockroaches, ''T. |
||
==Digestion== | ==Digestion== | ||
Like |
Like ]s, these cockroaches have ] bacteria and ]s in their gut that aid in digestion.<ref>{{cite journal|vauthors=Rao TB, Todd SR|name-list-style=amp |year=1968 |title=A new flagellate ''Trichomitus corydiae'' from the insect ''Corydia petiveriana'' |journal=] |volume=29|issue=2|pages=91–5|pmid=5709522}}</ref><ref>{{cite journal|title=Cockroaches that lack ''Blattabacterium'' endosymbionts: the phylogenetically divergent genus ''Nocticola''|journal=Biology Letters|year=2007|volume=3|pages=327–330|doi=10.1098/rsbl.2006.0614|author=Nathan Lo, Tiziana Beninati, Fred Stone, James Walker and Luciano Sacchi|url=http://www.bio.usyd.edu.au/Social_InsectsLab/Nate/PDFs/32-Nocticola_Biology_Letters2007.pdf.pdf|pmid=17376757|issue=3|pmc=2464682|url-status=dead|archiveurl=https://web.archive.org/web/20080726215340/http://www.bio.usyd.edu.au/Social_InsectsLab/Nate/PDFs/32-Nocticola_Biology_Letters2007.pdf.pdf|archivedate=2008-07-26}}</ref> | ||
==As pets== | ==As pets== | ||
The conspicuously marked ''Therea'' cockroaches are popular as pets and easy to keep. The most commonly kept species has often been identified as ''T. petiveriana'', but in 2009 it was instead suggested that the captive population actually belongs to a separate species, '']'', that differs primarily in the hindwings (which usually are hidden behind the tegmina), but also in small details of the tegmina pattern.<ref name=Fritzsche2009>{{cite journal| last=Fritzsche | first=I. | year=2009 | title=A new species of Therea Billberg, 1820 - (Blattodea: Polyphagidae) | url=http://www.schaben-spinnen.de/Content/content.php?cont=bernhardti | journal=Arthropoda | volume=17 | issue=2 | pages=6–7 }}</ref> | |||
This species is popular as a pet in many parts of the world and are easy to keep. | |||
⚫ | ==References== | ||
⚫ | {{Reflist|2}} | ||
{{Taxonbar|from=Q4668272}} | |||
⚫ | == |
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⚫ | {{ |
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⚫ | ] | ||
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⚫ | ] | ||
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Latest revision as of 16:39, 21 October 2024
Species of cockroach
Therea petiveriana | |
---|---|
Male above, female below (with shorter antennae) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Blattodea |
Family: | Corydiidae |
Genus: | Therea |
Species: | T. petiveriana |
Binomial name | |
Therea petiveriana (Linnaeus, 1758) | |
Synonyms | |
Corydia petiveriana |
Therea petiveriana, variously called the desert cockroach, seven-spotted cockroach, domino cockroach, or Indian domino cockroach, is a species of crepuscular cockroach found in southern India. They are members of a basal group within the cockroaches. This somewhat roundish and contrastingly marked cockroach is mainly found on the ground in scrub forest habitats where they may burrow under leaf litter or loose soil during the heat of the day.
Description
The black and white pattern of adults is believed to have evolved to mimic the pattern of the aggressive ground beetle Anthia sexguttata that has strong defenses, including the ability to spray chemical irritants. The upperside of the abdomen is orange-yellow, but is hidden by the tegmina. The spots on the asymmetrical tegmina are placed so that when closed, the spots appear symmetrical. The right tegmen lobe is bright orange-yellow. The species has been said to be one of the few cockroaches with "grace and beauty". The head is bent back underneath the pronotal shield (hypognathous) and the ocelli (simple eyes) face forward, helping sense light and thereby time, and they forage actively during early morning and late evening.
Reproduction
Once a female has copulated with a male, she does not allow other males to approach, kicking them away with her hind legs. The eggs are laid in leaf litter. Up to 13 oothecae are produced by a female over 3 to 40 days (blocking the ocelli of the females has been found to inhibit the laying of eggs). The oothecae are produced as in other cockroaches by the secretions from the asymmetrical colleterial glands of the females. Once the ootheca is extruded it is deposited in suitably moist leaf litter. Nymphs lead a life hidden below the ground and may go as deep as 30 cm during the dry season.
Taxonomy
This is the type species for the genus Therea. The species epithet is after James Petiver (1663–1718), who obtained specimens from Madras and its vicinity (probably from the surgeon at Fort St. George, either Samuel Browne or more likely Edward Bulkley). Carl Linnaeus placed the species under Cassida and described C. petiveriana and another that he called C. septemguttata, now considered a synonym.
Communication
Like other cockroaches, T. petiveriana uses chemical pheromones to communicate with each other. When disturbed, they are said to raise their wings and evert lateral glands on the second and third abdominal segments. Their glandular secretions were found to contain volatile compounds N-3-methylbutylacetamide (MBA) and N-3-methylbutylpropanamide (MBP), making up nearly 60% of the volatile fraction. These chemicals appeared to induce alarm behaviour.
Digestion
Like termites, these cockroaches have symbiotic bacteria and flagellates in their gut that aid in digestion.
As pets
The conspicuously marked Therea cockroaches are popular as pets and easy to keep. The most commonly kept species has often been identified as T. petiveriana, but in 2009 it was instead suggested that the captive population actually belongs to a separate species, T. bernhardti, that differs primarily in the hindwings (which usually are hidden behind the tegmina), but also in small details of the tegmina pattern.
References
- ^ Judith A. Marshall, Judith A. (1975). "The orthopteroid insects described by Linnaeus, with notes on the Linnaean collection". Zoological Journal of the Linnean Society. 78 (4): 375–396. doi:10.1111/j.1096-3642.1975.tb02266.x.
- "ZooBank".
- Grandcolas, P. (1993). "Le genre Therea Billberg, 1820: position phylogenetique, nouvelles especes, repartition, valence ecologique (Dictyoptera, Blattaria, Polyphaginae)". Canadian Journal of Zoology. 71 (9): 1816–1822. doi:10.1139/z93-259.
- Philippe Grandcolas, Yung Chul Park, Jae C. Choe, Maria-Dolors Piulachs, Xavier Bellés, Cyrille D'Haese, Jean-Pierre Farine, Rémy Brossut and Jena-Pierre Farine (2001). "What does Cryptocercus kyebangensis, n.sp. (Dictyoptera: Blattaria: Polyphagidae) from Korea reveal about Cryptocercus evolution? A study in morphology, molecular phylogeny, and chemistry of tergal glands". Proceedings of the Academy of Natural Sciences of Philadelphia. 151: 61–79. doi:10.1635/0097-3157(2001)151[0061:WDCKNS]2.0.CO;2. S2CID 13719378.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ^ Livingston, D & M Rajambal (1980). "Association of ocelli with the neuroendocrine system of Therea petiveriana (L.) (Blaberoidea: Polyphagidae)" (PDF). Proc. Indian Acad. Sci. (Anim. Sci.). 89 (2): 147–153. doi:10.1007/BF03179155. S2CID 84009370.
- "Mimicry". Archived from the original on 2011-07-08.
- Sharp, David (1895). The Cambridge Natural History. Volume 5. Macmillan and Co. London. pp. 233–234.
- Livingstone D, Ramani R (1978). "Studies on the reproductive biology". Proc. Indian Acad. Sci. 87 (9): 229–247. doi:10.1007/BF03179011. S2CID 81843029.
- Ananthasubramanian, K.S. & T.N. Ananthakrishnan (1959). "The structure of the ootheca and egg laying habits of Corydia petiveriana L". Indian Journal of Entomology. 21: 59–64.
- Annie Courrent, André Quennedey, Christine A. Nalepa, Alain Robert, Michael Lenz and Christian Bordereau (2008). "The fine structure of colleterial glands in two cockroaches and three termites, including a detailed study of Cryptocercus punctulatus (Blattaria, Cryptocercidae) and Mastotermes darwiniensis (Isoptera, Mastotermitidae)". Arthropod Structure & Development. 37 (1): 55–66. doi:10.1016/j.asd.2007.03.004. PMID 18089127.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - William J. Bell; Louis Marcus Roth; Christine A. Nalepa (2007). Cockroaches: ecology, behavior, and natural history. Johns Hopkins University Press. p. 123. ISBN 978-0-8018-8616-4.
- Bhoopathy, S. (1997). "Microhabitat preferences among four species of cockroaches". Journal of Nature Conservation. 9: 259–264.
- Petiver, James. "An account of Mr Samuel Brown, his Third Book of East India Plants, with their Names Vertues Description, etc". Philosophical Transactions. 22 (271): 843–862.
- Farine, J. P., Semon, E., Everaerts, C., Abed, D., Grandcolas, P. and Brossut, R. (2002). "Defensive secretion of Therea petiveriana: chemical identification and evidence of an alarm function" (PDF). J. Chem. Ecol. 28 (8): 1629–1640. doi:10.1023/A:1019932630787. PMID 12371815. S2CID 6826801. Archived from the original (PDF) on 2011-06-12.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - Rao TB, Todd SR (1968). "A new flagellate Trichomitus corydiae from the insect Corydia petiveriana". Rivista di Parassitologia. 29 (2): 91–5. PMID 5709522.
- Nathan Lo, Tiziana Beninati, Fred Stone, James Walker and Luciano Sacchi (2007). "Cockroaches that lack Blattabacterium endosymbionts: the phylogenetically divergent genus Nocticola" (PDF). Biology Letters. 3 (3): 327–330. doi:10.1098/rsbl.2006.0614. PMC 2464682. PMID 17376757. Archived from the original (PDF) on 2008-07-26.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - Fritzsche, I. (2009). "A new species of Therea Billberg, 1820 - (Blattodea: Polyphagidae)". Arthropoda. 17 (2): 6–7.
Taxon identifiers | |
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Therea petiveriana |
|