Milichiella argentiventris

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ITIS Name

Milichiella argentiventris

Rank: 
Species
Unit Name 1: 
Milichiella
Unit Name 2: 
argentiventris
Usage: 
valid
Authors: 
Hendel, 1931
Page number: 
72
Type data: 
Egypt. S.E. Desert, Wadi Kanssisrob, Gebel Elba. ST 3M CUGE?
Other Information: 
4 Topotypes in USNM
BDWD_rec_number: 
83752
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Species description

Milichiella argentiventris

species name description: 
Milichiella argentiventris
author: 
Hendel
year: 
1931
Diagnosis: 

Differs from congeners in the combination of slightly brown microtomentose mesonotum, 2 prsc, white wing and calypter, yellow narrow bases and tips of tibiae as well as long silvery microtomentum on male T2-5.

orbital setae [number]: 
2
frontal setae [number]: 
2
lower frontal seta [inclination]: 
medioclinate
frontal width: 
2.0
basoflagellomere [color]: 
black
arista [length]: 
4.3
arista [length of pubescence]: 
very short
frons [color]: 

subshiny black, ocellar triangle and orbital plates shiny black

palpus [color]: 
black
male posterior eyemargin [shape]: 
notch (5-6oc) and slight emargination (1-2oc)
lunule [color]: 
black
face [color]: 
greyish microtomentose
male thorax [color]: 

slightly brown microtomentose, scutellum brown microtomentose, pleura slightly brown microtomentose with shiny spots on anepisternum and katepisternum

dc [number]: 
2 dc (var.: 2+1)
prsc [number]: 
2
pprn [number]: 
1+0.5
prs [number]: 
1+0.8
kat [number]: 
3
prsc [length]: 
1
seta between prsc and dc: 
present
wing [color]: 
white
calypter [color]: 
white
male halter [color]: 
black
vein M sections: 
1.9
vein R4+5 and M: 
converging (3.0)
vein R1-spot [presence]: 
absent
tibial organ [presence]: 
absent
legs [color]: 
black except for yellow narrow bases and tips of tibiae and bases of tarsi (var.: legs darker)
forefemur setulose [presence]: 
normal
male abdomen [color]: 
T2-5 silvery microtomentose
male abdomen [chaetotaxy]: 
T2 anterolateral corner with 2-3 lines of setae, T2-5 posterior margin with 1-2 rows of setulae
male sternite 5 [shape, chaetotaxy]: 
1.2x as long as wide, 1.7x as long and 2.1x as wide as S4; setulose, posterior margin indented
abdominal triangle [presence]: 
present
male terminalia, other characters: 

similar to M. nigeriae

setae in anteroventral corner of epandrium [number]: 
1
setae on subepandrial plate [number]: 
1
surstylus [chaetotaxy]: 
with 3-5 setulae along anterior margin moving medially basally
surstylus [structure of lateral surface]: 
smooth
surstylus [shape]: 

0.6x as long as epandrium high, bent posteriorly, dilated apically (1.7x), 2.5x as long as wide

female posterior eyemargin [shape]: 
?
female halter [color]: 
?
female thorax [color]: 

?

female abdomen [color]: 
?
wing length [mm]: 
2.3-2.4
body length [mm]: 
2.6-3.1
special characters: 
silvery microtomentum long
male specimen studied: 
x
remarks: 

The 3 ST are probably in CUGE, however 4 specimens of the same series are deposited in USNM and were used for species definition. There is a variety with 2+1 dc and darker legs collected from mixed woodlands and forest margins in South Africa and Malawi. Nigerian specimens near Milichiella argentiventris were reared from rotten yam tubers (Dioscoreaceae)

AF: 
x
Distribution: 

Egypt and Yemen, varieties in Malawi and South Africa

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