View source for Encarsia nigriventris (Girault)

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[[File:Encarsia_nigriventris_(Girault)_ZSM.jpg| thumb| 400px| right| ''Encarsia nigriventris'' female (slide preparation)]]
== Diagnosis ==
=== Female ===
Colour: head yellow except postgena with transverse brown band on vertex partly,
malar space and area around mouth brown. Mesosoma mostly yellow, pronotum, mesoscutal midlobe anteriorly and axillae anteriorly more or less brown. Metasoma dark brown except
petiole lighter and apex of T7 yellow. Antenna yellow with apical segments darker. Fore wing
with dark band behind marginal vein. Legs yellow, hind coxa occasionally brown.

Morphology [measurements of holotype in square brackets]: stemmaticum with
transversely strigose surface sculpture. Antennal formula 1,1,6,0, i.e. clava not defined.
Pedicel longer than F1 (1.21–1.58). F1 1.40–1.53 [1.42] times as long as its maximum
width, distinctly shorter than F2 (0.54–0.67) [0.64] and F3 (0.56–0.69) [0.60]. F2
subequal in length to, or slightly longer, than F3 (0.93–1.24) [0.93]. Flagellomeres with the
following numbers of sensilla: F1: 0(–1), F2: 1–2, F3: 2–3, F4: 2–3, F5: 2–3, F6: 2.
Midlobe of mesoscutum with 8(–11) setae, side lobes with two setae each. Scutellar sensilla
widely separated (approximately three to four times the maximum width of a sensillum).
Distance between anterior pair of scutellar setae smaller than between posterior pair. Fore
wing 2.4–2.7 [2.5] times as long as width of disc. Marginal fringe 0.33–0.44 [0.37] times as
long as width of disc. Basal cell with two setae. Submarginal vein with two setae, marginal
vein anteriorly with five or six setae. Tarsal formula 5-5-5. Apical spur of midtibia longer
than half the length of the corresponding basitarsus (0.63–0.77) [0.75]. Tergites laterally
with the following numbers of setae: T1: 0, T2: 1, T3: 1, T4: (1–)2, T5: 3, T6: 2, T7 with
four setae. Ovipositor subequal in length to midtibia. Third valvula 0.40–0.46 [0.42] times
as long as second valvifer.

=== Male ===
Unknown.

== Species group placement== 
''Encarsia smithi'' group.

== Distribution ==
Australia: Queensland, Western Australia.

== Hosts ==
Aleyrodidae: ''Aleurocanthus'' sp., ''Aleuroduplidens'' sp., ''Aleurotrachelus'' sp.,
''Pseudaleuroplatus litseae'' (Dumbleton), ''Tetralicia'' sp., ''Xenaleyrodes'' sp.

== References ==
* {{aut|Schmidt, S.}}; {{aut|Polaszek, A.}} 2007: The Australian species of ''Encarsia'' Förster (Hymenoptera, Chalcidoidea: Aphelinidae), parasitoids of whiteflies (Hemiptera, Sternorrhyncha: Aleyrodidae) and armoured scale insects (Hemiptera, Coccoidea: Diaspididae). ''Journal of natural history'', '''41''': 2099–2265. {{doi|10.1080/00222930701550766}}

== External links ==
[[Wikispecies:Encarsia_nigriventris| ''Encarsia nigriventris'' on Wikispecies]]<br />
[http://www.zsm-entomology.de/wiki/Encarsia_nigriventris Type information]<br />
[http://www.eol.org/pages/844672 Encyclopedia of Life]<br />
[http://www.nhm.ac.uk/jdsml/research-curation/research/projects/chalcidoids/detail.dsml?FamilyCode=BD&ValFamTrib=&VALGENUS=Encarsia&VALSPECIES=nigriventris&VALAUTHOR=(Girault)&VALDATE=1913&ValidAuthBracket=true&TAXONCODE=Encars+nigriGa&HOMCODE=0&searchPageURL=indexValidName.dsml%3fSpecies%3dnigriventris%26Genusqtype%3dequals%26Familyqtype%3dequals%26index%3dValidName%26Speciesqtype%3dequals%26Genus%3dencarsia&listPageURL=validName.dsml%3fSpecies%3dnigriventris%26Familyqtype%3dequals%26Genusqtype%3dequals%26index%3dValidName%26Speciesqtype%3dequals%26Genus%3dencarsia Univeral Chalcidoidea Database]<br />
[[Wikipedia:Encarsia| ''Encarsia'' on Wikipedia]]