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The sequoia-loving sprite, a new genus and species of fungus gnat (Diptera, Mycetophilidae) from California.

Kerr PH - Zookeys (2014)

Bottom Line: California is one of the most biologically diverse regions of the world, yet the diversity of fungus gnats (Mycetophilidae) remains largely undocumented within the state.A modest survey of these flies has led to the discovery of a new genus and species of gnat that lives alongside one of the most iconic trees in the world, the giant sequoia (Sequoiadendron giganteum).Spritella sequoiaphila gen. et sp. n. is described and illustrated and its status among other mycetophilid genera is analyzed and discussed.

View Article: PubMed Central - HTML - PubMed

Affiliation: California State Collection of Arthropods, California Department of Food and Agriculture, 3294 Meadowview Rd., Sacramento, CA, 95832-1448 USA.

ABSTRACT
California is one of the most biologically diverse regions of the world, yet the diversity of fungus gnats (Mycetophilidae) remains largely undocumented within the state. A modest survey of these flies has led to the discovery of a new genus and species of gnat that lives alongside one of the most iconic trees in the world, the giant sequoia (Sequoiadendron giganteum). Spritella sequoiaphila gen. et sp. n. is described and illustrated and its status among other mycetophilid genera is analyzed and discussed.

No MeSH data available.


Spritella sequoiaphila sp. n., thorax, lateral view [paratype male, #11G040]. Abbreviations: anepm anepimeron anepst anepisternum aprnt antepronotum a spr anterior spiracle cx coxa hlt halter kepst katepisternum ltg laterotergite mr meron mtg mediotergite mtanepst anepisternum mtepm metepimeron mtkepst metakatepisternum p spr posterior spiracle patg paratergite proepm proepimeron proepst proepisternum sc scutum sctl scutellum.
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Figure 2: Spritella sequoiaphila sp. n., thorax, lateral view [paratype male, #11G040]. Abbreviations: anepm anepimeron anepst anepisternum aprnt antepronotum a spr anterior spiracle cx coxa hlt halter kepst katepisternum ltg laterotergite mr meron mtg mediotergite mtanepst anepisternum mtepm metepimeron mtkepst metakatepisternum p spr posterior spiracle patg paratergite proepm proepimeron proepst proepisternum sc scutum sctl scutellum.

Mentions: Thorax (Fig. 2) raised, scutum dorsad of head position; short setae distributed throughout scutum, acrostichal setae present, bristles present along lateral margins of scutum; postalar wall and callus separated by carina; scutellum clearly wider than long, narrower than scutum; antepronotum and proepisternum with bristles; anepisternum with setae dorsally; anterior basalare bare; anapleural suture incomplete; katepisternum with setae ventro-posteriorly; anepimeron bare; anepisternum with few inconspicuous setulae; laterotergite raised ventrally, with bristles and shorter setae; metepisternum bare; mediotergite with three bands of bristles ventrally and shorter setae that extend along dorsoventral length, medially. Wing membrane covered with microtrichia and macrotrichia that are arranged irregularly; C ending beyond R5; dorsal surface of humeral vein without setae, ventral surface with setae; subcostal vein setose on both sides, ending in C, approximately at midpoint of wing; sc-r present, arising distad of origin of Rs; R1 setose on dorsal and ventral surfaces, although bare basad of Rs vein ventrally; vestigial M vein within discal cell present or absent; R4 not present, r-m present or absent (R5 joining M1 at junction with Rs); M1 setose above, bare below; M2 setose above, bare below, either arising from bM, from junction of M1 and Rs, or from base of M1; cubital vein unforked, setose above, bare below, ending at wing margin; CuP strong at base, extending apically as weak fold; anal vein strong, setose on both sides (less so ventrally), extending beyond origin of Rs. Legs elongate; coxae with dark, erect setae and lighter, shorter decumbent setae; femora with short, appressed setae and microtrichia; mid tibial organ absent; tibial spur formula 1:2:2; tibiae with short, appressed setulae and short, erect setae that are no longer than half widest width of tibia; tarsal claws small; empodium developed.


The sequoia-loving sprite, a new genus and species of fungus gnat (Diptera, Mycetophilidae) from California.

Kerr PH - Zookeys (2014)

Spritella sequoiaphila sp. n., thorax, lateral view [paratype male, #11G040]. Abbreviations: anepm anepimeron anepst anepisternum aprnt antepronotum a spr anterior spiracle cx coxa hlt halter kepst katepisternum ltg laterotergite mr meron mtg mediotergite mtanepst anepisternum mtepm metepimeron mtkepst metakatepisternum p spr posterior spiracle patg paratergite proepm proepimeron proepst proepisternum sc scutum sctl scutellum.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4155732&req=5

Figure 2: Spritella sequoiaphila sp. n., thorax, lateral view [paratype male, #11G040]. Abbreviations: anepm anepimeron anepst anepisternum aprnt antepronotum a spr anterior spiracle cx coxa hlt halter kepst katepisternum ltg laterotergite mr meron mtg mediotergite mtanepst anepisternum mtepm metepimeron mtkepst metakatepisternum p spr posterior spiracle patg paratergite proepm proepimeron proepst proepisternum sc scutum sctl scutellum.
Mentions: Thorax (Fig. 2) raised, scutum dorsad of head position; short setae distributed throughout scutum, acrostichal setae present, bristles present along lateral margins of scutum; postalar wall and callus separated by carina; scutellum clearly wider than long, narrower than scutum; antepronotum and proepisternum with bristles; anepisternum with setae dorsally; anterior basalare bare; anapleural suture incomplete; katepisternum with setae ventro-posteriorly; anepimeron bare; anepisternum with few inconspicuous setulae; laterotergite raised ventrally, with bristles and shorter setae; metepisternum bare; mediotergite with three bands of bristles ventrally and shorter setae that extend along dorsoventral length, medially. Wing membrane covered with microtrichia and macrotrichia that are arranged irregularly; C ending beyond R5; dorsal surface of humeral vein without setae, ventral surface with setae; subcostal vein setose on both sides, ending in C, approximately at midpoint of wing; sc-r present, arising distad of origin of Rs; R1 setose on dorsal and ventral surfaces, although bare basad of Rs vein ventrally; vestigial M vein within discal cell present or absent; R4 not present, r-m present or absent (R5 joining M1 at junction with Rs); M1 setose above, bare below; M2 setose above, bare below, either arising from bM, from junction of M1 and Rs, or from base of M1; cubital vein unforked, setose above, bare below, ending at wing margin; CuP strong at base, extending apically as weak fold; anal vein strong, setose on both sides (less so ventrally), extending beyond origin of Rs. Legs elongate; coxae with dark, erect setae and lighter, shorter decumbent setae; femora with short, appressed setae and microtrichia; mid tibial organ absent; tibial spur formula 1:2:2; tibiae with short, appressed setulae and short, erect setae that are no longer than half widest width of tibia; tarsal claws small; empodium developed.

Bottom Line: California is one of the most biologically diverse regions of the world, yet the diversity of fungus gnats (Mycetophilidae) remains largely undocumented within the state.A modest survey of these flies has led to the discovery of a new genus and species of gnat that lives alongside one of the most iconic trees in the world, the giant sequoia (Sequoiadendron giganteum).Spritella sequoiaphila gen. et sp. n. is described and illustrated and its status among other mycetophilid genera is analyzed and discussed.

View Article: PubMed Central - HTML - PubMed

Affiliation: California State Collection of Arthropods, California Department of Food and Agriculture, 3294 Meadowview Rd., Sacramento, CA, 95832-1448 USA.

ABSTRACT
California is one of the most biologically diverse regions of the world, yet the diversity of fungus gnats (Mycetophilidae) remains largely undocumented within the state. A modest survey of these flies has led to the discovery of a new genus and species of gnat that lives alongside one of the most iconic trees in the world, the giant sequoia (Sequoiadendron giganteum). Spritella sequoiaphila gen. et sp. n. is described and illustrated and its status among other mycetophilid genera is analyzed and discussed.

No MeSH data available.