Macrodactylus

***Macrodactylus*** er en slekt av biller som har larver som eter planterøtter. De hører til underfamilien oldenborrer (Melolonthinae) i den store gruppen skarabider (Scarabaeoidea).

## Utseende
Små til middelsstore (gjerne 8-13 millimeter), brunlige oldenborrer med lange bein. Kroppsformen er avlang, pronotum er mye smalere enn dekkvingene, som ikke dekker hele bakkroppen.

## Levevis
De voksne billene finnes gjerne på blomster.

## Utbredelse
Slekten er utbredt over hele Amerika, fra Argentina i sør til Canada i nord.

## Systematisk inndeling

* Ordenen biller, Coleoptera
** Underordenen Polyphaga
*** Overfamilien skarabider, Scarabaeoidea
**** Familien skarabider, Scarabaeidae Latreille, 1806
***** Underfamilien oldenborrer, Melolonthinae Samouelle, 1819
****** Stammen Macrodactylini Kirby, 1837
******* Slekten *Macrodactylus* Dejean, 1821
******** *[[Macrodactylus aeneicollis]]*
******** *[[Macrodactylus aeneipes]]*
******** *[[Macrodactylus aeneus]]*
******** *[[Macrodactylus aequatorialis]]*
******** *[[Macrodactylus affinis]]*
******** *[[Macrodactylus amoenus]]*
******** *[[Macrodactylus angustatus]]*
******** *[[Macrodactylus annulitarsis]]*
******** *[[Macrodactylus argentinus]]*
******** *[[Macrodactylus batesi]]*
******** *[[Macrodactylus bicolor]]*
******** *[[Macrodactylus bilineolatus]]*
******** *[[Macrodactylus bistriatus]]*
******** *[[Macrodactylus bolivianus]]* Moser
******** *[[Macrodactylus brenskei]]*
******** *[[Macrodactylus carrilloi]]*
******** *[[Macrodactylus championi]]*
******** *[[Macrodactylus chilensis]]*
******** *[[Macrodactylus cinereus]]*
******** *[[Macrodactylus columbianus]]*
******** *[[Macrodactylus conjunctus]]*
******** *[[Macrodactylus costaricensis]]*
******** *[[Macrodactylus costulatus]]* Bates, 1887
******** *[[Macrodactylus cupreus]]*
******** *[[Macrodactylus curtipilis]]*
******** *[[Macrodactylus cyanonigrus]]*
******** *[[Macrodactylus dimidiatus]]* Guérin-Ménéville, 1844
******** *[[Macrodactylus discicollis]]*
******** *[[Macrodactylus discipennis]]*
******** *[[Macrodactylus disparilis]]*
******** *[[Macrodactylus dorsatus]]*
******** *[[Macrodactylus duckei]]*
******** *[[Macrodactylus elegans]]*
******** *[[Macrodactylus excellens]]*
******** *[[Macrodactylus farinosus]]* Philippi, 1864
******** *[[Macrodactylus felix]]*
******** *[[Macrodactylus fulvescens]]*
******** *[[Macrodactylus fulvipennis]]*
******** *[[Macrodactylus fulvipes]]*
******** *[[Macrodactylus gracilis]]* Moser
******** *[[Macrodactylus griseus]]*
******** *[[Macrodactylus haenschi]]*
******** *[[Macrodactylus hondurensis]]* Arce-Pérez & Morón, 2005
******** *[[Macrodactylus howdeni]]* Arce-Pérez, 2009
******** *[[Macrodactylus impressus]]*
******** *[[Macrodactylus infuscatus]]*
******** *[[Macrodactylus limbatus]]*
******** *[[Macrodactylus lineaticollis]]*
******** *[[Macrodactylus lineatus]]*
******** *[[Macrodactylus longicollis]]*
******** *[[Macrodactylus longipes]]*
******** *[[Macrodactylus manantlecus]]*
******** *[[Macrodactylus marginicollis]]*
******** *[[Macrodactylus marianus]]*
******** *[[Macrodactylus megaphyllus]]* Arce-Pérez & Morón, 2014
******** *[[Macrodactylus meridanus]]*
******** *[[Macrodactylus mexicanus]]*
******** *[[Macrodactylus montanus]]* Arce-Pérez & Morón, 2000
******** *[[Macrodactylus murinus]]*
******** *[[Macrodactylus nigricornis]]*
******** *[[Macrodactylus nigripes]]*
******** *[[Macrodactylus nigritarsis]]*
******** *[[Macrodactylus nigrocyaneus]]*
******** *[[Macrodactylus nitidicollis]]*
******** *[[Macrodactylus nitididorsis]]*
******** *[[Macrodactylus nobilis]]* Frey
******** *[[Macrodactylus noveloi]]* Arce-Pérez, 2009
******** *[[Macrodactylus obscuritarsis]]*
******** *[[Macrodactylus ocreatus]]*
******** *[[Macrodactylus ohausi]]*
******** *[[Macrodactylus ovaticollis]]*
******** *[[Macrodactylus pallens]]*
******** *[[Macrodactylus paraguayensis]]*
******** *[[Macrodactylus penai]]*
******** *[[Macrodactylus peruanus]]*
******** *[[Macrodactylus pexus]]*
******** *[[Macrodactylus pokornyanus]]*
******** *[[Macrodactylus praecellens]]*
******** *[[Macrodactylus pulchellus]]*
******** *[[Macrodactylus pulchripes]]*
******** *[[Macrodactylus pumilio]]*
******** *[[Macrodactylus rufescens]]*
******** *[[Macrodactylus sapphirinus]]*
******** *[[Macrodactylus scutellaris]]*
******** *[[Macrodactylus sericeicollis]]* Bates, 1887
******** *[[Macrodactylus sericinus]]* Bates, 1887
******** *[[Macrodactylus signatipennis]]*
******** *[[Macrodactylus silaonus]]*
******** *[[Macrodactylus silarutus]]*
******** *[[Macrodactylus sparsesetosus]]*
******** *[[Macrodactylus squamiger]]*
******** *[[Macrodactylus suavis]]* Bates, 1887
******** *[[Macrodactylus subaeneus]]*
******** *[[Macrodactylus submarginatus]]*
******** *[[Macrodactylus subspinosus]]* (Fabricius, 1775)
******** *[[Macrodactylus subvittatus]]*
******** *[[Macrodactylus sulcicollis]]*
******** *[[Macrodactylus sulphureus]]*
******** *[[Macrodactylus surianus]]*
******** *[[Macrodactylus suturalis]]*
******** *[[Macrodactylus sylphis]]* Bates, 1887
******** *[[Macrodactylus tenuilineatus]]*
******** *[[Macrodactylus thoracicus]]*
******** *[[Macrodactylus tibialis]]* Arce-Pérez & Morón, 2005
******** *[[Macrodactylus uniformis]]*
******** *[[Macrodactylus variipes]]*
******** *[[Macrodactylus velutinus]]*
******** *[[Macrodactylus virens]]*
******** *[[Macrodactylus vittipennis]]*
******** *[[Macrodactylus yunganus]]* Arce-Pérez & Morón, 2014
******** *[[Macrodactylus zaragozai]]* Arce-Pérez & Morón, 2011
******** *[[Macrodactylus zischkai]]*
******** *[[Macrodactylus zunilensis]]*

## Kilder
* Arce-Pérez, R. & Morón, M.A. (2005). New species and new records of species of *Macrodactylus* Dejean (Coleoptera: Scarabaeidae: Melolonthinae: Macrodactyini) from Honduras and Nicaragua. Zootaxa 1012: 23-37.  http://www.mapress.com/zootaxa/2005f/zt01012p037.pdf
* Arce-Pérez, R. & Morón, M.A. (2011). *Macrodactylus zaragozai*, a new species (Coleoptera: Melolonthidae: Melolonthinae: Macrodactylini) from Guatemala and Mexico. *Dugesiana*, 17(2): 171-174.
* Arce-Pérez, R. & Morón, M.Á. (2014). New species and records of *Macrodactylus* Dejean (Coleoptera: Scarabaeidae: Melolonthinae: Macrodactylini) from Bolivia. Zootaxa 3857.2.8. http://biotaxa.org/Zootaxa/article/view/zootaxa.3857.2.8
* Evans, A.V. & Smith, A.B.T., 2007. An electronic checklist of the New World chafers (Coleoptera: Scarabaeidae: Melolonthinae). Tribe Macrodactylini Kirby, 1837. http://www.yumpu.com/it/document/view/17994928/macrodactylini
* Generic Guide to New World Scarab Beetles - *Macrodactylus* http://museum.unl.edu/research/entomology/Guide/Scarabaeoidea/Scarabaeidae/Melolonthinae/Melolonthinae-Generic-pages/Macrodactylini/Macrodactylus/Macrodactylus.html
* Smith, A.B.T., 2008. South American Melolonthinae (Coleoptera: Scarabaeidae) classification and nomenclature: some problems and solutions. *Insecta Mundi* 0060: 1-28. http://journals.fcla.edu/mundi/article/view/25152 

## Eksterne lenker
* 
* bugguide.net - Macrodactylus. Med bilder av nordamerikanske eksemplarer http://bugguide.net/node/view/2883