Thread subject: Diptera.info :: Cylindromyia sp. for ID--> Hyperaea femoralis

Posted by rafael_carbonell on 09-03-2016 21:14
#1

Following European keys I get to C. auriceps, but there there are only a few species and this species lacks basal scutellar bristle (Zeegers)(IBERIA: Girona: Beuda, 400 masl, July 19th 2015, dead in a pool)

So what could this be? Please, if there is a any more detail needed, please ask.

Rafael

Cylindromyia:
- Bend of M at a right or acute angle [ERROR]
- M without a stub and prolongation
- Cell r4+5 with a petiole ranging between 1/4 - 1/3 of postangular section of M
- Abdomen mainly red or yellowish

Species:
- Hind tibia with 2 pv-bristles
- Crossed apical scutellar bristles present
- Abdomen with discal bristles.
- Third segment of antenna ratio length/wide= 2.16 (=13/6)
- Basal scutellar bristles present

Edited by rafael_carbonell on 12-03-2016 00:31

Posted by Zeegers on 10-03-2016 07:53
#2

The head profile is off.
I think you will see 3 post IA bristles.

It should be Hyperaea, need to check the species.


Theo

Posted by rafael_carbonell on 10-03-2016 20:29
#3

Yes, I have had to correct the description as I was in a hurry,.... not good

Genus Hyperaea

(1) EYE
-Eye bare or nearly bare: hairs, if present, not longer than diameter of 2 eye facets
(6) [FEMALE] OUTER VERTICAL SETAE [BRISTLES]
-missing or much shorter and thinner, not distinguishable from postocular setae
(8) INCLINATION OF OCELLAR SETAE
-proclinate
(44) PRESUTURAL ACROSTICHAL SETAE
-... with one presutural acrostichal setae
(45) PRESUTURAL DORSOCENTRAL SETAE
-... two ...
(46) POSTSUTURAL DORSOCENTRAL SETAE
-... three ...
(47) POSTSUTURAL INTRA-ALAR SETAE
-three postsutural intra-alar setae
(49) KATEPISTERNAL SETAE
-three ...
(52) SCUTELLUM COLOUR
-scutellum entirely black
(56) APICAL SCUTELLAR SETAE
-apical setae crossed, horizontal or tilted upwards by at most 30°
(73) BEND OF M
-bend of M forming a distinctly obtuse angle
(74) STUB AND PROLONGATION OF M VEIN
-M without a stub and prolongation
(78) PETIOLE [STALK]
-cell r4+5 with a petiole ranging between 1/4 - 1/3 of postangular section of M
(87) COLOUR OF ABDOMEN
-abdomen mainly red or yellowish
(91) MARGINAL SETAE ON SYNTERGITE 1+2
-... with one pair of median marginal setae
(92) MEDIAN MARGINAL SETAE ON TERGITES 3 AND 4
-tergite 4 with a complete row of marginal setae

Edited by rafael_carbonell on 10-03-2016 20:44

Posted by rafael_carbonell on 10-03-2016 20:29
#4

...

Posted by rafael_carbonell on 10-03-2016 20:30
#5

...

Posted by rafael_carbonell on 10-03-2016 20:31
#6

and the last improved (...) picture

Posted by Zeegers on 11-03-2016 09:30
#7

It is a female, these are pretty difficult.
It keys out to H. femoralis and that is the species to be expected in Spain.


Theo

Posted by rafael_carbonell on 11-03-2016 23:19
#8

Thanks, Theo!