Buprestidae of South Australia
( Jewel beetles )
by Peter J. Lang
Ethonion corpulentum   (Boheman, 1858)
subfamily  Agrilinae » tribe  Coraebini » subtribe  Ethoniina
Ethonion corpulentum   Adult images
Ethonion corpulentum, PL2538N, on Dillwynia glaberrima (for photo), SE Ethonion corpulentum, PL2538N, SE Ethonion corpulentum, PL1976B, male, from Dillwynia hispida flowers, SE, 9.4 × 3.8 mm Ethonion corpulentum, PL2538A, from Dillwynia glaberrima root gall, SE, 9.4 × 4.0 mm Ethonion corpulentum, PL2538N, on Dillwynia glaberrima, SE Ethonion corpulentum, PL2538N, on Dillwynia glaberrima (for photo), SE Ethonion corpulentum, PL2538N, on Dillwynia glaberrima (for photo), SE
Actual
size¹:
8.9 mm
×
3.7 mm
Measurements (mm)
malefemale
L18.9
7.7 – 9.6
n = 89.0
8.1 – 10.15
n = 5
L29.2
9.2 – 9.2
n = 29.1
8.1 – 10.05
n = 2
W3.7
3.2 – 4
n = 83.8
3.25 – 4.35
n = 5
Legend  L1length from clypeus/frons to elytral apex (mean, range, sample size)
L2length from anterior of edge of eyes to elytral apex
Wmaximum width with elytra fully closed
Ethonion corpulentum  Distinctive features

A large and thick-bodied Ethonion species with a somewhat broken-up pattern of elytral scale hair patches which are coloured golden-brown in an inner strip adjoining the suture and silvery-white in the outer two-thirds

Notes

In SA E. corpulentum s.str. is confined to the lower part of the SE region where it forms globular galls on the roots and rhizomes of its preferred host plant.

Distribution
SA Regions¹:  SE
Australian States:  SATASVICNSWQLD
Southern South Australia distribution
LegendP.J.Lang collection vouchered records
other private collection or museum specimens, or sightings
Satellite map
Terrain map
Enlarge map
Adult activity records for Ethonion corpulentum  (total of 5 beetles)
3
2
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Legend
live emerged adults, count > median value of 3 per quarter month
live emerged adults, count <= median value of 3
live non-emerged adults only, for that quarter month
12
number of active beetles for that quarter month
Adult host plants
beetles sites SA regions¹ family position on host plant
Dillwynia hispida31SEF
Leptospermum myrsinoides21SEM
Legendbeetlescount of beetles collected from, or sighted on, host plant taxon
sitescount of major sites (unique 10 km grid cells +/- some distinct approximate localities)
Plant family
Code beetles % host plant taxa
F Fabaceae 3 60% 1
M Myrtaceae 2 40% 1
Position on adult host
positionbeetlessites
on flower(s)51
Ethonion corpulentum Breeding record images
Ethonion corpulentum, PL2539I, larva, in Dillwynia glaberrima root gall (dissected), SE, 14.2 × 2.2 mm Ethonion corpulentum, PL2539I, larva, in Dillwynia glaberrima root gall (dissected), SE, 14.2 × 2.2 mm Ethonion corpulentum, PL2539I, larva, in Dillwynia glaberrima root gall (dissected), SE, 14.2 × 2.2 mm Ethonion corpulentum, PL2539I, larva, in Dillwynia glaberrima root gall (dissected), SE, 14.2 × 2.2 mm Ethonion corpulentum, PL2539H, larva, in Dillwynia glaberrima (PJL 2836) dissected rhizome gall, SE, 8.0 × 1.6 mm Ethonion corpulentum, PL2538G, male, non-emerged adult, in Dillwynia glaberrima (PJL 2836) root gall, SE, 9.3 × 4.0 mm Ethonion corpulentum, PL2538G, male, non-emerged adult, in Dillwynia glaberrima (PJL 2836) root gall, SE, 9.3 × 4.0 mm Ethonion corpulentum, PL2538H, non-emerged adult, in Dillwynia glaberrima (PJL 2836) root gall, SE Ethonion corpulentum, PL2538N, non-emerged adult, on Dillwynia glaberrima root gall (for photo), SE Ethonion corpulentum, PL2538B, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836) for photo, SE Ethonion corpulentum, PL2538B, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836)  for photo, SE Ethonion corpulentum, PL2538E, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836) for photo, SE, 10.2 × 4.4 mm Ethonion corpulentum, PL2538E, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836)  for photo, SE, 10.2 × 4.4 mm Ethonion corpulentum, PL2538E, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836) for photo, SE, 10.2 × 4.4 mm Ethonion corpulentum, PL2538E, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836) for photo, SE, 10.2 × 4.4 mm Ethonion corpulentum, PL2538B, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836) for photo, SE Ethonion corpulentum, PL2538B, female, non-emerged adult, on larval host Dillwynia glaberrima (PJL 2836) for photo, SE Ethonion corpulentum, PL2538, larval host plant, host Dillwynia glaberrima, SE Ethonion corpulentum, PL2538, larval host plant, host Dillwynia glaberrima, SE Ethonion corpulentum, larval host plant, host Dillwynia glaberrima, rhizome with 2 unhatched galls, SE Ethonion corpulentum, larval host plant, host Dillwynia glaberrima, rhizome with 2 unhatched galls, SE Ethonion corpulentum, PL2539, larval host plant, host Dillwynia glaberrima with unhatched root galls, SE Ethonion corpulentum, PL2539, larval host plant, host  Dillwynia glaberrima with hatched rhizome galls, SE Ethonion corpulentum, PL2538, larval host plant, host Dillwynia glaberrima (PJL 2836), hatched gall, SE Ethonion corpulentum, larval host plant, host Dillwynia hispida (PJL 2834), SE, rhizome with 2 hatched galls (& stem galls of E. leai above) Ethonion corpulentum, larval host plant, host Dillwynia hispida (PJL 2834), SE, rhizome with 2 hatched galls (& stem galls of E. leai above) Ethonion corpulentum, larval host plant, host Dillwynia hispida (PJL 2834), with old galls (sectioned) & rhizomes, SE
Larval host plants
individuals sites SA regions¹ family adult livelarvagall (only)
Dillwynia glaberrima621SEF181628
Dillwynia hispida71SEF16
Legendindividualscount of breeding adults, pupae and larvae
sitescount of major sites (unique 10 km grid cells +/- some distinct approximate localities)
adultlive = extracted alive;   dead = extracted dead as intact or fragmentary remains;   ex billet = reared and emerged from stored sections of host;   ex pupa = reared from sampled pupa
pupaextracted pupa;   pupa ex larva = reared pupa from larva
larvaextracted larva (any stage including prepupa)
gall (only)hatched or unhatched gall identified by form and position rather than contents
Plant family
Code individuals % host plant taxa
F Fabaceae 69 100% 2
Position in larval host
positionindividualssitesadult livelarvagall (only)
root gall671181633
root crown gall2111
Host plant notes

In SA this species appears to use Dillwynia glaberrima (Smooth Parrot-pea) as its principal larval host and has not been found outside the range of that plant species. Although small numbers of E. corpulentum galls have also been recorded on D. hispida (Downy Parrot-pea), these were on plants growing adjacent to infested D. glaberrima. In one case the D. hispida plant involved was rhizomatous, a trait not otherwise known in that species and which raises the possibility of some introgression with D. glaberrima at the site. Although D. hispida is widely distributed in SA, including areas with similar rainfall, E. corpulentum galls have never been recorded on it elsewhere.

¹ LegendregionsSA State Herbarium regions (map)
EA: Eastern, EP: Eyre Peninsula, FR: Flinders Ranges, GT: Gairdner-Torrens, KI: Kangaroo Island, LE: Lake Eyre, MU: Murray, NL: Northern Lofty, NU: Nullarbor, NW: North-Western, SE: South-Eastern, SL: Southern Lofty, YP: Yorke Peninsula
sizeThe ellipse is the correct size when printed, indicative on a desktop screen, and likely to be wrong on a mobile device.