Graphosomella, Carapezza & Jindra, 2008
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publication ID |
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persistent identifier |
https://treatment.plazi.org/id/DE3E878F-FFF0-FFD5-FF37-5D40FBF73A7B |
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treatment provided by |
Luisschmitz |
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scientific name |
Graphosomella |
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subgen. nov. |
Graphosomella subgen. nov.
Type species. Graphosoma ( Graphosomella subgen. nov.) inexpectatum sp. nov.
Diagnosis. Graphosomella subgen. nov. is clearly separated from Graphosoma s. str. by the following combination of characters: body small, subparallel, due to the connexivum little projecting laterad and less rounded than in Graphosoma s. str. (see Plate I); body 1.80× longer than pronotum wide (as shown in Tab. 1 View Tab , based on original measurements, this ratio varies between 1.42 and 1.63 in all the other species of Graphosoma ); lateral margins of pronotum evenly rounded, without a well defined lateral angle, not separable into an anterior and a posterior part; scutellum much shorter than abdomen; largest part of membrane exposed; antenna short, as long as 0.33x of body length ( 0.40-0.48 in all the other species of Graphosoma , see Tab. 1 View Tab ); ostiole opening at the top of a simple raised cone in front of a shallow circular depression (in the other species of Graphosoma , with the only exception of G. consimile Horváth, 1903 , there is an elongate, distally raised peritreme emanating from the anterior side of the ostiole); paramere ( Fig. 2d) with three apical points.
Etymology. Graphosomella means ‘little Graphosoma ’; a feminine.
Bionomics. While all the species of Graphosoma s. str. are known to feed on Apiaceae , the single species of Graphosomella subgen. nov. was apparently collected on an unidentified plant of the family Lamiaceae . However, more observations are needed to confirm this otherwise important difference.
Tab. 1 Main ratios in Graphosoma species.
| Body length/ Pronotum width | Antennae/Body length | |||
|---|---|---|---|---|
| ♂♂ | ♀♀ | ♂♂ | ♀♀ | |
| inexpectatum | 1.80 | – | 0.33 | – |
| consimile | 1.58-1.64 | 1.47-1.59 | 0.40-0.43 | 0.45-0.48 |
| interruptum | – | 1.57-1.59 | – | 0.40-0.45 |
| lineatum | 1.48-1.54 | 1.45-1.53 | 0.44-0.47 | 0.42-0.46 |
| melanoxanthum | 1.53-1.54 | 1.50-1.54 | 0.40-0.43 | 0.40-0.41 |
| rubrolineatum | 1.42-1.46 | 1.50-1.54 | 0.42 | 0.40-0.44 |
| semipunctatum | 1.53-1.66 | 1.53-1.63 | 0.43-0.48 | 0.40-0.43 |
| stali | – | 1.56 | – | 0.46 |
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