Streptocranus petilus
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Streptocranus petilus holotype lateral; S.M. Smith |
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Streptocranus petilus holotype dorsal; S.M. Smith |
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Streptocranus petilus holotype declivity; S.M. Smith |
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Streptocranus n. sp. 1 holotype frontal; S.M. Smith |
Taxonomic history
Streptocranus petilus 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): 315.
Diagnosis
2.3 mm long (n = 1); 3.83 times as long as wide. This species can be distinguished by its small size; elytraelytron:
the two sclerotized forewings of beetles that protect and cover the flight wings
with sides nearly parallel from basebase:
point or edge closest to the body; opposite of apex
to apexapex:
point or edge furthest from the body; opposite of base
; declivitaldeclivital:
pertaining to the elytral declivity
interstriae 1, 3 with 2−3 granules; and elytralelytral:
pertaining to the elytra
distaldistal:
situated away from the body
projection short, subquadratesubquadrate:
almost quadrate, with oblique corners
, strongly carinate.
May be confused with
Streptocranus bicolor, S. fragilis, and S. mirabilis
Distribution
China (Yunnan)
Host plants
This species is only known from Hevea brasiliensis (Euphorbiaceae) (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
Sequences available for COI and CAD.
COI: MN620004
CAD: MN620273
