Vilga, Stal, 1860
publication ID |
https://doi.org/ 10.11646/zootaxa.4353.1.11 |
publication LSID |
lsid:zoobank.org:pub:5FC87216-289A-4355-8A17-1505712F0C95 |
DOI |
https://doi.org/10.5281/zenodo.6038231 |
persistent identifier |
https://treatment.plazi.org/id/03AB87CC-FF9B-536D-FF25-F98EFA42FC2F |
treatment provided by |
Plazi |
scientific name |
Vilga |
status |
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Key to species of Vilga View in CoL (adapted from Dolling, 1977)
1 Pronotum deeply emarginate posteriorly ( Trinidad, Brazil, Paraguay, Bolivia, northern Argentina).... westwoodi (Kolenati) View in CoL
- Pronotum shallowly emarginate posteriorly................................................................ 2
2 Abdominal sternites bearing spines at postero-lateral angles which are about as long as width of connexivum; pronotum very spinose. ( Guatemala, French Guiana, Brazil, Paraguay)............................................. dallasi Distant View in CoL
- Abdominal sternites bearing spines at most half as long as width of connexivum; pronotum less spinose................ 3
3 Posterior femur with a single, small, subapical spine beneath. ( Peru, Chile, Argentina).............................. 4
- Posterior femur beneath with two major subapical spines and a group of three or four spine-like tubercules between distal spine and apex of femur. (Southern U.S.A. to southern Brazil)....................................................... 6
4 Length of antennal segment I at most 0.56 times width of head inclusive of eyes. ( Peru)................ peruviana Dolling View in CoL
- Length of antennal segment I at least 0.65 times width of head inclusive of eyes.................................... 5
5 Apex of corium at rest reaching level of middle of laterotergite V, apex of membrane not reaching beyond posterior margin of tergite VII. ( Chile, Argentina, Brazil).......................................................... chilensis (Stein) View in CoL
- Apex of corium reaching posteriorly to base of laterotergite VI, membrane projecting beyond posterior tip of body. ( Argentina)................................................................................... penningtoni Bergroth View in CoL
6 Lateral margins of abdominal sternites almost smooth......................................................... 7
- Lateral margins of abdominal sternites distinctly granulate or tuberculate....................................... 10
7 Posterolateral spines of pronotum short, width of pronotum across tips of spines about 1.97 times width of head inclusive of eyes. ( Brazil)........................................................................................ 8
- Posterolateral spines of pronotum long, widely diverging, width of pronotum across tips of spines at least 2.09 times width of head including eyes.................................................................................... 9
8 Pubescence including some longer and more erect setae; antennal segment II more than half the width of segment I ( Brazil)........................................................................................ antennata View in CoL sp. nov.
- Pubescence uniform in height; antennal segment II less than half the width of segment I ( Brazil)........ brasiliensis Dolling View in CoL
9 Antennal segment I without tubercles, though with some large granules present. ( Panama, Guyana)....... divaricata Distant View in CoL
- Antennal segment I externally with a row of projecting tubercles. ( Brazil).......................... sanctipauli Dolling View in CoL
10 Antennal segments I–III clothed with suberect hairs longer than width of segment II, disc of hemelytral membrane with numer- ous crossveins; sometimes brachypterous. (Southern U.S.A. to El Salvador).......................... mexicana Distant View in CoL
- Antennal segments I–III clothed with hairs shorter than width of segment II; disc of membrane without cross-veins; insect never brachypterous................................................................................. 11
11 Pronotum with posterolateral spines directed obliquely forwards. ( Brazil).............................. obliqua Dolling View in CoL
- Pronotum with posterolateral spines directed laterally....................................................... 12
12 Lateral margins of abdominal sternites V–VII bearing granules no longer than broad. ( Costa Rica, Panama, Aruba, Guyana, Colombia, Brazil)....................................................................... dissimilis Distant View in CoL
- Lateral margins of abdominal sternites V–VII bearing at least some tubercles longer than broad...................... 13
13 Antennal segment I about equal in length to width of head across antennifers. (Scutellum as long as its own basal width). (Bra- zil)................................................................................ serrulata Montandon View in CoL
- Antennal segment I longer than head width across antennifers................................................ 14
14 Antennal segment I about equal in length to width of head inclusive of eyes; scutellum as long as its own basal width. ( Brazil)......................................................................................... grisea Dolling View in CoL
- Antennal segment I shorter than width of head including eyes; scutellum distinctly longer than its own basal width. ( Brazil)...................................................................................... grisescens Dolling View in CoL
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SubFamily |
Pseudophloeinae |