Anisandrus eggersi
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Anisandrus eggersi lateral; R.K. Osborn |
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Anisandrus eggersi dorsal; R.K. Osborn |
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Anisandrus eggersi declivity; R.K. Osborn |
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Anisandrus eggersi frontal; R.K. Osborn |
Taxonomic history
Xyleborus eggersi Beeson, 1930: 215.
Cyclorhipidion eggersi (Beeson): Maiti and Saha 2004: 105.
Anisandrus eggersi (Beeson): Hulcr et al., 2007: 578.
Diagnosis
3.1−3.2 mm long (mean = 3.12 mm; n = 5); 2.21−2.29 times as long as wide. This species can be distinguished by the mesonotal mycangial tuftmycangial tuft:
tuft of setae that denotes the mycangia exterior opening
the length of the scutellumscutellum:
a shield-like sclerotized plate located at the midpoint of the elytral base
; elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
convexconvex:
appearing rounded
; declivitydeclivity:
downward slope of either the pronotum or elytra
appearing flat when viewed laterally; 2−3 small tuberclestubercle:
a small knob-like or rounded protuberance of the exoskeleton
present on basalbase:
point or edge closest to the body; opposite of apex half of interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br />
impressed and bear smaller punctures.
2; posterolateralposterolateral:
relating to end of the side part/portion
margin costate to interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br />
impressed and bear smaller punctures.
5; declivitaldeclivital:
pertaining to the elytral declivity
face strongly shagreenedshagreened:
covered with a closely-set roughness, like shark skin 
; and clearly punctatepunctate:
set with fine impressed points, appearing as pin pricks
declivitaldeclivital:
pertaining to the elytral declivity
interstriae.
May be confused with
Anisandrus feronia, A. improbus, and A. mussooriensis
Distribution
Bhutan, China (Yunnan), India (West Bengal), Myanmar, Nepal, Thailand, Vietnam
Host plants
polyphagous, recorded from five genera in five different families (Euphorbiaceae, Lauraceae, Rosaceae, Staphyleaceae, Symplocaceae) (Maiti and Saha 2004Maiti and Saha 2004:
Maiti PK, Saha N. 2004. Fauna of India and the adjacent countries. Scolytidae: Coleoptera (bark and ambrosia beetles). Vol. 1. Part 1. Zoological Survey of India, Kolkata, 268 pp.)
Remarks
Maiti and Saha (2004) suggest that it is a high altitude species.
DNA data
Sequences available for COI and CAD.
