Insect or Invertebrates Identification - DONE

Discussions and information on all Southern African Invertebrates

Moderator: Klipspringer

Klipspringer
Global Moderator
Posts: 5858
Joined: Sat Sep 14, 2013 12:34 pm
Country: Germany
Contact:

Re: Insect or Invertebrates Identification

Post by Klipspringer »

We have another bee fly here

https://africawild-forum.com/viewtopic. ... 2f#p380584

Image

Do we have another angle maybe O**

Might be Corsomyza, Mariobezziine

Also very cute this one [InLuv]


ExFmem
Posts: 4630
Joined: Fri Jun 01, 2012 6:56 pm
Contact:

Re: Insect or Invertebrates Identification

Post by ExFmem »

Sorry, I don't. Maybe I could enlarge the wings from the RAW file or something, if it would help -O- .


Klipspringer
Global Moderator
Posts: 5858
Joined: Sat Sep 14, 2013 12:34 pm
Country: Germany
Contact:

Re: Insect or Invertebrates Identification

Post by Klipspringer »

We can do without :ty:


Klipspringer
Global Moderator
Posts: 5858
Joined: Sat Sep 14, 2013 12:34 pm
Country: Germany
Contact:

Re: Insect or Invertebrates Identification

Post by Klipspringer »

The key says

Mariobezziinae:
Clypeus not reaching antennal sockets
Eyes without an indentation on the posterior margin or any indication of a bisecting line, and R2+3 always arises at an acute angle close to the origin of R
Head much broader than high when viewed from front; antennae separated by not more than the length of scape and pedicel; scape with a short dorsal spine; body short and broad

All members of the subfamily are robust, compact flies, often bee-like in appearance, usually encountered resting in flowers, particularly daisy-like flowers of certain Asteraceae. Individuals tend to become covered in pollen grains which become entangled in the hair. The females have a well-developed sand chamber.


Corsomyza:
Head without frons inflated or face long and tumid; interradial crossvein usually absent (2 submarginal cells)
Oral rim not raised into a prominent ridge; plumula present; hair tuft present behind metathoracic spiracle
Antennae inserted well above oral rim; facial brush of stiff hairs dense and obvious

Corsomyza spp. are found predominantly in the winter-rainfall region of southern Africa and the genus is the most speciose of the subfamily.
Distribution: Afrotropical: 27 species, with centre of diversity in South Africa, Northern and Western Cape, but some species occur in Namibia and the Eastern Cape, and Zimbabwe.


ExFmem
Posts: 4630
Joined: Fri Jun 01, 2012 6:56 pm
Contact:

Re: Insect or Invertebrates Identification

Post by ExFmem »

O/\ Looks good to me - even includes the requisite pollen! ;-)

Thanks, as always, Fly Whisperer. [InLuv]


Klipspringer
Global Moderator
Posts: 5858
Joined: Sat Sep 14, 2013 12:34 pm
Country: Germany
Contact:

Re: Insect or Invertebrates Identification

Post by Klipspringer »

I think, too the pollen bit is very convincing =O:

But the antennae and head shape are less convincing

I am going to look up the figures from this beautiful book (Bee flies of the world: the genera of the family Bombyliidae. 1973. Hull, Frank M.)
https://archive.org/stream/beefliesofwo ... 4/mode/1up

and into the famous Hesse book, pp 712
https://archive.org/stream/annalsofsout ... 3/mode/1up

Hyperusia is a genus to look into :-?


Klipspringer
Global Moderator
Posts: 5858
Joined: Sat Sep 14, 2013 12:34 pm
Country: Germany
Contact:

Re: Insect or Invertebrates Identification

Post by Klipspringer »

Here we go:

I have educated myself and found that you have to look at the position of the antennae.

The suspects in the subfamily are:

Callynthrophora: Frons inflated; antennae inserted just above oral rim; flagellum clubbed

Hyperusia: Antennae inserted immediately above oral rim; no facial brush of stiff hairs

Corsomyza: Antennae inserted well above oral rim; facial brush of stiff hairs dense and obvious

Position antennae.jpg

The shape of the antennae tip can be different within a genus, but not the position of the antennae.

After this excercise I'd clearly go with Hyperusia which is a genus with sexual dimorphism.

key to Hyperusia:
Head without frons inflated or face long and tumid; interradial crossvein usually absent (2 submarginal cells)
Oral rim not raised into a prominent ridge; plumula present; hair tuft present behind metathoracic spiracle
Antennae inserted immediately above oral rim; no facial brush of stiff hairs
Body with dense adpressed scale-like hairs; cell cup closed or only narrowly open, anal lobe broad, alula well developed; proboscis much shorter than head and thorax combined

Hyperusia Bezzi
This genus is similar in appearance to Corsomyza but with a different distribution pattern. The species are found principally outside the winter-rainfall region of southern Africa, where Corsomyza spp. predominate, in tropical southern Africa.

Distribution: Afrotropical Region. South Africa, Namibia, Botswana: 8 species
KTP is a late summer rainfall region ;-)

Here a set of figures
Hyperusia luteifacies and H soror.jpg
Hyperusia luteifacies and H soror.jpg (97.75 KiB) Viewed 427 times

ExFmem, if you don't mind the effort, you can have a look at your original image and try to see some more detail of the head and the wing.

:-0


User avatar
Richprins
Committee Member
Posts: 75234
Joined: Sat May 19, 2012 3:52 pm
Location: NELSPRUIT
Contact:

Re: Insect or Invertebrates Identification

Post by Richprins »

Small moth..1-1.5 cm...it sticks its bum in the air! :-? :shock:


q.jpg
q1.jpg


Please check Needs Attention pre-booking: https://africawild-forum.com/viewtopic.php?f=322&t=596
Klipspringer
Global Moderator
Posts: 5858
Joined: Sat Sep 14, 2013 12:34 pm
Country: Germany
Contact:

Re: Insect or Invertebrates Identification

Post by Klipspringer »

^Q^ ^Q^ ^Q^ I like it, Richprins


User avatar
Richprins
Committee Member
Posts: 75234
Joined: Sat May 19, 2012 3:52 pm
Location: NELSPRUIT
Contact:

Re: Insect or Invertebrates Identification

Post by Richprins »

:shock:

[InLuv]


Please check Needs Attention pre-booking: https://africawild-forum.com/viewtopic.php?f=322&t=596
Post Reply

Return to “Invertebrates”