Ambrosiophilus lannaensis

Taxonomic history

Ambrosiophilus lannaensis Smith, Beaver & Cognato 2020 (in Smith et al. 2020bSmith et al. 2020b:
Smith SM, Beaver RA, and Cognato AI. 2020b. A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China. ZooKeys 983: 1-442. https://doi.org/10.3897/zookeys.983.52630): 62.

Diagnosis

1.95−2.05 mm long (mean = 2.01 mm; n = 5); 2.67−2.73 times as long as wide. This species is distinguished by all declivitaldeclivital:
pertaining to the elytral declivity
interstriae granulategranulate:
pertaining to a coarse, grainy surface texture
on upper half of declivitydeclivity:
downward slope of either the pronotum or elytra
; pronotumpronotum:
the dorsal surface of the thorax
from dorsaldorsal:
of or relating to the upper surface; opposite of ventral
view subquadratesubquadrate:
almost quadrate, with oblique corners
(type 3); pronotumpronotum:
the dorsal surface of the thorax
from laterallateral:
pertaining to the side
view type 0; pronotalpronotal:
pertaining to the pronotum
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
shining, punctures moderately fine and separated by several times their diameter; posterolateralposterolateral:
relating to end of the side part/portion
margins of elytraelytron:
the two sclerotized forewings of beetles that protect and cover the flight wings
rounded; lower part of declivitydeclivity:
downward slope of either the pronotum or elytra
flattened; and declivitaldeclivital:
pertaining to the elytral declivity
striae not impressedimpressed:
a depression in a surface
, interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
finely, sparsely granulategranulate:
pertaining to a coarse, grainy surface texture
on upper part of declivitydeclivity:
downward slope of either the pronotum or elytra
only.

May be confused with

Ambrosiophilus atratus, A. caliginestris, A. satoi, and A. wantaneeae

Distribution

Thailand

Host plants

Butea monosperma (Leguminosae), Castanopsis armata and Lithocarpus tenuinervis (Fagaceae), Diospyros kaki (Ebenaceae), Mangifera indica (Anacardiaceae); evidently polyphagous (Smith et al. 2020bSmith et al. 2020b:
Smith SM, Beaver RA, and Cognato AI. 2020b. A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China. ZooKeys 983: 1-442. https://doi.org/10.3897/zookeys.983.52630)

DNA data

specimens not available for sequencing