Tricosa indochinensis
|
Tricosa indochinensis holotype lateral; R.K. Osborn |
|
Tricosa indochinensis holotype dorsal; R.K. Osborn |
|
Tricosa indochinensis holotype declivity; R.K. Osborn |
|
Tricosa indochinensis holotype frontal; R.K. Osborn |
Taxonomic history
Tricosa indochinensis Cognato, Smith and Beaver: Cognato et al. 2020a: 549.
Diagnosis
3.2−3.4 mm long (mean = 3.32 mm; n = 5); 2.83−2.91 times as long as wide. This species is distinguished by the discaldiscal:
pertaining to the disc of either the pronotum or elytra
interstrial punctures confusedconfused:
of markings, having indefinite outlines or running together as lines or spots without definite pattern; usually referring to punctures
; protibiaprotibia:
tibia of the first pair of legs
distinctly triangular; anterior margin of the pronotumpronotum:
the dorsal surface of the thorax
with a clear row of eight moderate serrationsserration:
row of asperities; a saw-like structure 
.
This species is very similar to T. cattienensis and can be distinguished by the larger size and narrower form.
May be confused with
Distribution
China (Yunnan), India (West Bengal), Thailand
Host plants
known only from Pterocarpus (Fabaceae) (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
