Agrilus hypoleucus Gory & Laporte, 1837
subfamily Agrilinae » tribe Agrilini » subtribe Agrilina
Agrilus hypoleucus Adult images
Measurements (mm)
| male | female |
|---|
| L1 | 8.7 | 6.3 – 10 | n = 102 | 9.9 | 5.3 – 11.4 | n = 76 |
| L2 | 8.9 | 7.15 – 9.9 | n = 33 | 9.9 | 6.7 – 11.25 | n = 20 |
| W | 2.2 | 1.6 – 2.5 | n = 102 | 2.7 | 1.4 – 3.7 | n = 76 |
| Legend | L1 | length from clypeus/frons to elytral apex (mean, range, sample size) |
| L2 | length from anterior of edge of eyes to elytral apex |
| W | maximum width with elytra fully closed |
Agrilus hypoleucus Distinctive features
Anterior prosternal lobe with a protruding 'tooth'. First segment on hind feet (metatarsomere) very elongate, especially in males.
Notes
This is an extremely common species in SA. Tepper 1887 (on p.20) was most likely referring to this species (and not Agrilus australasiae) when he wrote:
'The larvae live in the bark and splinth wood of the Golden Wattle, even quite young ones, and when present in number sometimes destroy the trees altogether, in fact they would rank among the chief insect enemies of the Wattle (Acacia pycnantha) were they not so eagerly pursued by our native insect-feeding birds'.
Distribution
FR, NL, MU, YP, SL, KI, SE
Australian States: WA, NT, SA, TAS, NSW, QLD
Southern South Australia distribution
| Legend | | P.J.Lang collection vouchered records |
| other private collection or museum specimens, or sightings |
Adult activity records for Agrilus hypoleucus (total of 1099 beetles)
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Aug |
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Oct |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
| Legend | | live emerged adults, count > median value of 24 per quarter month |
| live emerged adults, count <= median value of 24 |
| live non-emerged adults only, for that quarter month |
12 | number of active beetles for that quarter month |
Adult host plants
| Acacia pycnantha | 493 | 46 | FR, EP, NL, MU, SL, SE | F |
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| Acacia retinodes | 348 | 15 | NL, MU, SL | F |
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| Acacia sp. | 55 | 16 | FR, EP, NL, MU, SL, KI | F |
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| Acacia uncifolia | 37 | 7 | SL, KI | F |
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| Acacia argyrophylla | 19 | 5 | NL, MU | F |
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| Acacia provincialis | 17 | 6 | SL, KI | F |
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| Acacia wattsiana | 17 | 3 | NL | F |
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| Acacia euthycarpa | 8 | 3 | MU | F |
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| Allocasuarina verticillata | 6 | 5 | MU, SL | C1 |
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| Leptospermum sp. | 4 | 2 | SL | M |
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| Acacia longifolia ssp. sophorae | 3 | 2 | KI, SE | F |
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| Eucalyptus leucoxylon ssp. leucoxylon | 2 | 1 | SL | M |
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| Exocarpos cupressiformis | 2 | 1 | SL | S1 |
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| Eucalyptus sp. | 2 | 2 | SL | M |
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| Acacia calamifolia | 1 | 1 | FR | F |
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| Acacia cupularis | 1 | 1 | SL | F |
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| Acacia ligulata | 1 | 1 | MU | F |
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| Acacia quornensis | 1 | 1 | EP | F |
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| *Acacia saligna | 1 | 1 | SE | F |
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| Acacia spilleriana | 1 | 1 | NL | F |
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| Allocasuarina muelleriana ssp. muelleriana | 1 | 1 | SL | C1 |
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| Callitris gracilis | 1 | 1 | MU | C2 |
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| Dodonaea viscosa ssp. angustissima | 1 | 1 | FR | S2 |
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| Eucalyptus fasciculosa | 1 | 1 | SL | M |
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| Lepidosperma viscidum | 1 | 1 | NL | C3 |
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| Leptospermum myrsinoides | 1 | 1 | SL | M |
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| Myoporum insulare | 1 | 1 | SE | S3 |
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| Senna artemisioides ssp. petiolaris | 1 | 1 | MU | F |
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| Senna artemisioides ssp. zygophylla | 1 | 1 | NL | F |
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| Legend | beetles | count of beetles collected from, or sighted on, host plant taxon |
| sites | count 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 family
| F |
Fabaceae |
1004 |
98% |
15 |
| M |
Myrtaceae |
10 |
1% |
3 |
| C1 |
Casuarinaceae |
7 |
1% |
2 |
| S1 |
Santalaceae |
2 |
0% |
1 |
| C2 |
Cupressaceae |
1 |
0% |
1 |
| C3 |
Cyperaceae |
1 |
0% |
1 |
| S2 |
Sapindaceae |
1 |
0% |
1 |
| S3 |
Scrophulariaceae |
1 |
0% |
1 |
Position on adult host
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| on flower(s) | | 7 | 2 |
| on flowering plant | | 96 | 18 |
| on foliage or non-flowering plant | | 840 | 64 |
| on dead foliage | | 1 | 1 |
| on plant (unspecified) | | 83 | 24 |
| other |
| on fruit | | 1 | 1 |
Lure affinity
Agrilus hypoleucus Breeding record images
Larval host plants
| Acacia pycnantha | 104 | 9 | MU, SL, SE | F | 9 | 3 | 44 | 18 | 27 | 3 |
| Acacia retinodes | 16 | 1 | MU | F | | 1 | 15 | | | |
| Acacia wattsiana | 2 | 1 | NL | F | | 1 | 1 | | | |
| Acacia longifolia | 1 | 1 | SE | F | | | 1 | | | |
| *Acacia pycnantha | 1 | 1 | SE | F | | 1 | | | | |
| Legend | records | count of breeding adults, pupae and larvae |
| sites | count 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) |
| adult | live = 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 |
| pupa | extracted pupa; pupa ex larva = reared pupa from larva |
| larva | extracted larva (any stage including prepupa) |
| gall (only) | hatched or unhatched gall identified by form and position rather than contents |
Plant family
Position in larval host
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| stem base | | 3 | 1 | 2 | | | | | 1 |
| stem | | 1 | 1 | | | 1 | | | |
| dead stem | | 120 | 11 | 7 | 6 | 60 | 18 | 27 | 2 |
Host plant notes
Adults occur on a variety of Acacia species and in SA they are particularly common on Acacia pycnantha (Golden Wattle) and A. retinodes (Wirilda), where they can sometimes be observed feeding on the foliage (phyllodes). It is known to breed in the live and dead wood of both these species and in A. wattsiana, but probably uses many other Acacia species also. Turner 2001b reported A. longifolia as a larval host plant in NSW with breeding established in dead branches.
| ¹ Legend | regions | SA 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 |
| size | The ellipse is the correct size when printed, indicative on a desktop screen, and likely to be wrong on a mobile device. |
, SL, A2_x468.jpg "Agrilus hypoleucus, PL0375A, on Acacia pycnantha (feeding), SL, 10.7 × 3.0 mm")
