Buprestidae of South Australia
( Jewel beetles )
by Peter J. Lang
Castiarina adelaidae   (Hope, 1846)
subfamily  Buprestinae » tribe  Stigmoderini » subtribe  Stigmoderina
Castiarina  species group: octospilota
Castiarina adelaidae   Adult images (last updated: 5 Nov 2021)
Castiarina adelaidae, PL0559, female, on Hysterobaeckea behrii, SL, 2.1 km W Williamstown, 8 Dec 2008, 14.0 × 5.6 mm Castiarina adelaidae, PL0220A, male, SL, 1.1 km NW Black Hill summit, Black Hill CP, 17 Oct 2007, 11.7 × 4.3 mm Castiarina adelaidae, PL0045, on Calytrix tetragona, SL, 2.2 km NNW McLaren Flat, 12 Nov 2006, 9.9 × 3.7 mm Castiarina adelaidae, PL0053, on Leptospermum continentale, KI, 1.4 km NNW Rocky River visitor centre, Flinders Chase NP, 18 Dec 2006, 12.0 × 4.9 mm Castiarina adelaidae, PL0053, on Leptospermum continentale, KI, 1.4 km NNW Rocky River visitor centre, Flinders Chase NP, 18 Dec 2006, 12.0 × 4.9 mm Castiarina adelaidae, PL0054, male, KI, 3.6 km WNW Rocky River visitor centre, Flinders Chase NP, 20 Dec 2006, 11.9 × 4.5 mm Castiarina adelaidae, PL0045, female, on Calytrix tetragona, SL, 2.2 km NNW McLaren Flat, 12 Nov 2006, 9.9 × 3.7 mm Castiarina adelaidae, PL5511, female, on Leptospermum myrsinoides, SL, 7.3 km SW Milang, 20 Oct 2021, 14.6 × 5.8 mm Castiarina adelaidae, PL0559, female, on Hysterobaeckea behrii, SL, 2.1 km W Williamstown, 8 Dec 2008, 14.0 × 5.6 mm Castiarina adelaidae, PL0560A, female, on Hysterobaeckea behrii, SL, 3.0 km SW Lyndoch P.O., Sandy Creek CP, 8 Dec 2008 Castiarina adelaidae, PL0002, male, from Leptospermum coriaceum, EP, c. 2.5 km ENE Tooligie, Hincks CP, 19 Oct 1977, 13.0 × 5.0 mm
Actual
size¹:
12.7 mm
×
4.8 mm
Measurements (mm)
malefemale
L112.3
8.75 – 15
n = 7813.6
9.8 – 16.1
n = 40
L212.6
9 – 14.6
n = 2614.1
11.3 – 15.95
n = 16
W4.6
3.25 – 5.5
n = 785.2
3.7 – 6.3
n = 40
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
Castiarina adelaidae  Distinctive features

Ventral side yellow. Males in particular have very large and broad tarsi. Similar coloration to Castiarina decemmaculata with which it often occurs, but it is larger and has a broader body shape than that species.

Notes

This species was described by Hope 1846 'from the settlement at Adelaide'. It is similar and closely related to Castiarina octospilota of the eastern states.

It is a conspicuous spring species on Tea-tree (Leptospermum) flowers in the Adelaide foothills and central Hills area, as well as much further afield in places with heathy vegetation.

Forms from Kangaroo Island have heavier dark markings and often have two disjunct yellow lacunae in the anterior half of each elytron. On the mainland, forms with these lacunae conjoined are more common. Forms from the SE region have a richer yellow and stronger green reflections.

Distribution
SA Regions¹:  GTEPMUSLKISE
Australian States:  SAVIC
South Australian occurrences
LegendP.J.Lang collection vouchered records
other private collection or museum specimens, or sightings
Satellite map
Terrain map
Enlarge map
Adult activity records for Castiarina adelaidae  (total actual records: 756 beetles)
1 1 1
16 1
1
2
1
21 94 43 94
60 83 69 99
71 25 28 53
5 3 5 1
1
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Legend
9
number of active beetles, actually recorded in that quarter-month
2
estimate of active beetles, inferred* from adjoining date ranges
actual count > 35.5 (median)
actual count <= 35.5 (median)
 *Inferred when a site has counts of active beetles for each of two consecutive periods (date ranges), one finishing and the other starting in the same quarter-month.
The count estimate is assigned to that quarter-month and calculated as the lower of the two total beetle counts, divided by the number of quarter-months in its date range.
Adult host plants
beetles sites SA regions¹ family position on host plant
21130SL, KI, SEM
16020MU, SL, KI, SEM
10923GT, EP, MU, SL, SEM
9215MU, SL, KI, SEM
Leptospermum sp.5219MU, SL, KI, SEM
199EP, MU, SL, SEM
42KIM
21KIM
22SL, KIP2
11KIF
11SLC
11SLP1
11SL
11KIM
11SLM
11SEM
11EPP1
11EPM
11SLM
Melaleuca sp.11SLM
11KIM
Myrtaceae sp.11SEM
11SER
11KIM
Legendbeetlescount of beetles collected from, or sighted on, host plant taxon
sitescount of major sites (unique 10 km grid cells +/- some distinct approximate localities)
*indicates alien (non-native) plant occurrences, either wild or planted (the species may be alien in SA, or native in parts of its SA range)
Plant names in green are hyperlinked to a matching host species page with plant photos.
Plant family
Code beetles % host plant taxa
M Myrtaceae 658 99% 14
P1 Proteaceae 2 0% 2
P2 Pittosporaceae 2 0% 1
C Casuarinaceae 1 0% 1
F Fabaceae 1 0% 1
R Rhamnaceae 1 0% 1
Position on adult host
positionbeetlessites
on flower(s)41456
on flowering plant18438
on foliage or non-flowering plant32
on plant (unspecified)6323
other
  in blue bucket11
  on stems11
Lure affinity
colour beetles sites SA regions¹
blue1486SL, KI, SE
white1453SL, SE
light pink622SE
red42SE
light violet31SE
purple-pink11SE
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.