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Longicorn ID: Tool for Diagnosing Cerambycidae Subfamilies and Tribes
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Tetropium gabrieli

Classification Diagnostic Features of Larvae
  • Mature larva. Rather similar to those of Arhopalus species, from which it differs as follows. Length up to 19 mm; breadth (at prothorax) 5 mm. Head transverse (maximum head-width 3.1 mm), with sides only slightly wider behind middle; genal setae mostly arising from ferruginous basal dots, which give the genae a spotted appearance. Frons distinctly darker than epicranial halves. Antenna with apical segment quadrate to transverse. Mandible without an oblique plate along edge of dorsal surface and bearing fewer setae. Labrum transversely ovate, about twice as wide as long. Gula much shorter, not more than half as long as hypostomal sutures. Maxillary palpi with apical segment almost as long as second segment. Prothorax as in Asemum. Abdomen with urogomphi very short, stunted, and subcontiguous. Legs with femur and tibiotarsus distinctly ferruginous. Spiracles of abdomen with peritreme subcircular and with two protuberant subcontiguous tubes on posterior margin.

    Pupa. This pupa resembles that of Asemum striatum, from which it differs as follows. Length 10-16 mm; maximum breadth 3.75 mm. Head with two to six short pale spines on vertex. Antennae transversely rugose, densely spiculate, the basal segment with about six testaceous spines near apex of basal segment, and remaining segments with scattered, much smaller spines; extending as far as second abdominal segment. Maxillary palpi broadly truncate at apex. Pronotum elongate, with sides moderately rounded, and vertex with a pair of paramedian, longitudinal furrows; vertex and front margin with numerous conical papillae (each with an apical seta). Mesonotum glabrous; scutellum with a few minute setae. Metanotum sometimes with a few minute pale setae on each side of scutellar groove. Abdomen with tergites one to six bearing two oval groups of spines (each with a subapical seta). Seventh tergite with a few scattered spines. Eighth tergite often, and ninth always, glabrous. Legs with a row of spines (with apical setae) near apex of each femur. Functional spiracles with peritreme slightly raised in anterior half. Adapted from Duffy (1953).
Biology and Economic Importance
  • Biology and economic importance for this taxon coming soon.
Selected References to Larvae Specimens

idtools.org     Longicorn ID images on Bugwood ITP Node
Longicorn ID last updated 2020  E.H. Nearns, N.P. Lord, S.W. Lingafelter, A. Santos-Silva, K.B. Miller, & J.M. Zaspel