1. PaDIL Species Factsheet Scientific Name: Heterobostrychus aequalis (Waterhouse, 1884) (Coleoptera: Bostrichidae: Bostrichinae: Bostrichini) Common Name Lesser auger beetle Live link: http://www.padil.gov.au/pests-and-diseases/Pest/Main/135575 Image Library Australian Biosecurity Live link: http://www.padil.gov.au/pests-and-diseases/ Partners for Australian Biosecurity image library Department of Agriculture, Water and the Environment https://www.awe.gov.au/ Department of Primary Industries and Regional Development, Western Australia https://dpird.wa.gov.au/ Plant Health Australia https://www.planthealthaustralia.com.au/ Museums Victoria https://museumsvictoria.com.au/ 2. Species Information 2.1. Details Specimen Contact: AQIS - Brisbane - Author: Walker, K. Citation: Walker, K. (2005) Lesser auger beetle(Heterobostrychus aequalis)Updated on 8/20/2021 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0) 2.2. URL Live link: http://www.padil.gov.au/pests-and-diseases/Pest/Main/135575 2.3. Facets Status: Exotic species - absent from Australia Group: Beetles Commodity Overview: Horticulture, Forestry Commodity Type: Timber Distribution: South and South-East Asia, Australasian - Oceanian, Africa, Europe and Northern Asia, USA and Canada 2.4. Other Names Bostrichus aqeualis Waterhouse Bostrychus uncipennis Lesne oriental wood borer 2.5. Diagnostic Notes This genus resides in the subfamily Bostrichinae which is defined by: - First tarsal segment shorter than second and third also shorter than second - Anterior margin of pronotum truncate, concave or deeply emarginate - Lateral teeth more prominent than median teeth. The genus _Heterobostrychus_ is defined by: - Body length: 5.0-16.0mm - Head capsule not deeply and transversely constricted behind eyes - Gena without a large tooth or lobe below each eye - Antennal club segments with two unmargined and indistinct nearly circular sensory areas - Pronotum excavated behind the middle of the anterior margin. There are 5 known species in _Heterobostrychus_: _H. aequalis, H. brunneus, H. hamatipennis, H. pileatus_ and _H. unicornis_. Females differ from males as: pronotum smaller, teeth on anterior apical border of pronotum shorter; apical declivity of elytra without marginal tubercles. _Heterobostrychus aequalis_ is characterised by: - Apical declivity and elytra bare - Pronotum with obvious posterior angles, often lobed - Frons without a distinct hairy gibbosity - Pronotum middle of basal half sparsely punctured (females) or densely punctured (males) - Second segment of hind tarsus noticeable shorter than the last segment. Source: Graham Goodyer (2008). Identification of Bostrichid Beetles to Genus and Species (unpublished) Differentiation of males as follows: 1. Apical declivity of elytra unituberculate on each side .. _H. hammatipennis_ - Apical declivity of elytra bituberculate on each side .. 2 2. Posterolateral angles of pronotum lobed; teeth on anterior border of pronotum broadly separated; apical declivity of elytra arcuately deflexed with inner two stout tubercles pointing obliquely upwards .. _H. aequalis_ - Posterolateral angles of pronotum rounded; teeth on anterior border of pronotum narrowly separated; apical declivity of elytra obliquely deflexed with inner two stout tubercles pointing inwards ... _H. pileatus_ 2.6. References Borowski, Jerzy and Piotr Wegrzynowicz. (2007). World catalogue of Bostrichidae (Coleoptera). 2.7. Web Links Australian Distribution Map: http://www.ento.csiro.au/aicn/name_s/b_1944.htm Featured Creatures: http://creatures.ifas.ufl.edu/trees/oriental_wood_borer.htm 3. Diagnostic Images Specimen Locality Label: Malaysia. Specimen Locality Label: Malaysia. 1951QA. 1951QA. Dorsal view: Ken Walker Museums Victoria Elytral view: Ken Walker Museums Victoria Specimen Locality Label: Malaysia. Specimen Locality Label: Malaysia. 1951QA. 1951QA. Head front: Ken Walker Museums Victoria Head side: Ken Walker Museums Victoria Specimen Locality Label: Malaysia. Specimen Locality Label: Malaysia. 1951QA. 1951QA. Lateral view: Ken Walker Museums Victoria Posterior view: Ken Walker Museums Victoria Specimen Locality Label: Malaysia. Specimen Locality Label: Malaysia. 1951QA. 1951QA. Pronotum view: Ken Walker Museums Thorax side: Ken Walker Museums Victoria Victoria 4. Other Images Specimen Locality Label: Malaysia. Specimen Locality Label: Malaysia. 1951QA. 1951QA. Larva head: Ken Walker Museums Victoria Larva side view: Ken Walker Museums Victoria Results Generated: Wednesday, September 29, 2021 .