| 词条 | Araneagryllus |
| 释义 |
| fossil_range = {{fossilrange|Burdigalian}} | authority = Heads, 2010 | genus = Araneagryllus | species = dylani | parent_authority = Heads, 2010 }}Araneagryllus is an extinct monotypic genus of cricket in the subfamily Phalangopsinae with the sole species Araneagryllus dylani.[1] The fossil was recovered in the Dominican Republic from early Miocene Burdigalian stage Dominican amber deposits on the island of Hispaniola.[1][2] Araneagryllus is the first Phalangopsinae cricket to be described from the fossil record.[1] The genus is known from a single {{convert|12.11|mm|in}} long female specimen, the holotype, currently deposited in the collections of the American Museum of Natural History in New York City, as number "DR-12-32", and which was first studied by Dr. Sam W. Heads.[1] Dr. Heads published his 2010 type description in the Zoological Journal of the Linnean Society volume number 158.[1] The genus name is a combination of the Latin aranea meaning "spider" and gryllus,meaning "cricket" in reference to the common name given the subfamily where Araneagryllus is placed.[1] The species name is in honor of Dylan L. Heads, son of Dr. Heads.[1] The female has a notable development of a white "emulsion" developed around the mouth parts and on the abdomen.[1] Araneagryllus dylani possesses a wide shield-like, pronotum which has irregularly spaced setae and prominent ridges along the center and margins.[1] The legs are long with areas of short and long setae, and are marked with a pattern of dark marking ranging from spots on the profemur to stripes on the mesotibia.[1] The metatibia sports two rows of ten to twelve spines, four subapical spurs, and three apical spurs. The middle apical spur is notably longer than the other two spurs.[1] Both cerci the joint of one hind leg and the ovipositor are incomplete, having been removed during shaping and polishing of the amber specimen.[1] Cladistic analysis places Araneagryllus within a clade composed of Arachnopsita, Leptopedetes, Longuripes, Mayagryllus, Nemoricantor, and Prolonguripes. All seven genera, among other characters, possessing an elongated middle apical spur.[1]References1. ^1 2 3 4 5 6 7 8 9 10 11 12 {{cite journal |last1=Heads |first1=S.W. |year=2010 |title= The first fossil spider cricket (Orthoptera: Gryllidae:Phalangopsinae): 20 million years of troglobiomorphosis or exaptation in the dark? |journal= Zoological Journal of the Linnean Society |volume=158 |issue = 1 |pages=56–65|doi=10.1111/j.1096-3642.2009.00587.x}} {{Taxonbar|from=Q4784074}}2. ^{{cite journal |last1=Iturralde-Vinent |first1=M.A. |author2=MacPhee, R.D.E. |year=1996 |title=Age and Paleogeographical Origin of Dominican Amber |journal= Science |volume=273|pages=1850–1852 |doi= 10.1126/science.273.5283.1850 |issue=5283}} 13 : Crickets|Ensifera genera|Prehistoric insect genera|Monotypic insect genera|Burdigalian life|Neogene Dominican Republic|Miocene insects of North America|Fossil insects of the Caribbean|Fauna of Hispaniola|Insects of the Dominican Republic|Fossils of the Dominican Republic|Dominican amber|Fossil taxa described in 2010 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。