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Photo#1392387
Conopids - Physoconops brachyrhynchus - male

Conopids - Physoconops brachyrhynchus - Male
Jonesboro, Craighead County, Arkansas, USA
May 26, 2017

Images of this individual: tag all
Conopids - Physoconops brachyrhynchus - male Conopids - Physoconops brachyrhynchus - male

Moved
Moved from Physoconops bulbirostris.

For explanation of this move...see my comment near bottom of this page.

Moved
Moved from Conopinae.

Gordon...did you get a dorsal shot?
I'm hoping so...with the "bird in hand" (though I'm thinking perhaps not, as you would liklely have posted it?)

At any rate, the large black patch on the frons here is distinctive, and points to either Physoconops (Pachyconops) bulbirostris:

   

or Physoconops (Physoconops) obscuripennis:

     

A number of characters tip the balance away from P. obscuripennis:

1) the lack of a conspicuous triangular indentation a bit above midway along the hind margin of the eye;
2) the clear delineation (at cells "br" and "dm") between the infuscate anterior and hyaline posterior halves of the wings;
3) the relatively long terminal antennal segment.

And while the upper part of the pleural stripe (visible between the fore- and mid-femora) is much stronger than usual in P. bulbirostris, the strongly bulbous swelling of the frons near the base of the anntenae still suggests that species.

This appears to be a male, and the two hemispherical bumps under sternites 3 and 4 look anomalous (perhaps individual was injured?).

 
Aaron, thank you for the deta
Aaron, thank you for the detailed reply. I am not much of a fly guy so I really appreciate it. I had meant to add the dorsal shot when I was posting the first image but somehow got side tracked and never did, anyway here is the dorsal view of the beast. As I recall it was healthy when I found it, so I am not sure about the bumps.I hope this helps.

 
Great! Good to have dorsal shot too.
Happy to help with Conopinae ID's. This is a fairly uncommon species, and I'm glad you made the effort to photo-document it. (Who knows, maybe seeing more conopids, mydids, etc. might move you to become more of a fly guy? :-)

PS: Those bulges on S3-4 are definitely anomalous...maybe this former larval parasitoid was itself parasitized after metamorphosis?

 
Thanks again for the help, al
Thanks again for the help, always have my eyes open for something different. Glad this was one of those times it paid off.

 
Apologies Gordon...I erred on species ID above!
I previously misinterpreted the frons here as being entirely black (the profile view here doesn't afford an unambiguous view of that character), which is a big part of why I gravitated towards P. bulbirostris earlier.

But P. bulbirostris has dark cheeks (yours here has white cheecks); a relatively long proboscis (your here has a short proboscis); and "pleural stripe indistinct or diffused on the upper half" according to Williston(1882) (yours has pleural stripe of uniform width in upper & lower halves). The parenthetic characters given in the previous sentence all indicate P. brachyrhynchus here, rather than P. bulbirostris. And I now think the frons here is more likely pale laterally...as in P. brachyrhynchus.

In fact, I made a few other mis-diagnoses of P. bulbirostris which I'll fix soon (but right now I need to get out to the field before dark! ;-).

 
Aaron, many thanks for the up
Aaron, many thanks for the update and correction.

Moved
Moved from ID Request.

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