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Longicorn ID: Tool for Diagnosing Cerambycidae Subfamilies and Tribes
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Clytini

Classification Introduction
  • The tribe Clytini Mulsant, 1839 currently contains 1,774 species in 84 genera. Photographs of 15 exemplar specimens are currently available for this tribe.
Diagnostic Features of Adults
  • Body size variable, from small (less than 10 mm) to moderate-sized (between 10-40 mm); generally elongate. Eyes generally reniform, complete (not completely divided into upper and lower lobes). Antennae variable, from filiform to serrate, flabellate, or expanded laterally, armed with spines or not; antennae 11-segmented, antennal length variable, from short (not extending beyond tip of abdomen) to long (extending beyond tip of abdomen). Pronotum variable, from generally elongate (distinctly longer than wide) to approximately subquadrate (about as long as wide) or transverse (distinctly wider than long); lateral margins of pronotum unarmed, without distinct spines or tubercles. Mesocoxal cavities open to mesepimeron. Elytral apices variable, with distinct spines or without. Metafemoral length variable, distinctly longer than profemora or not; metafemoral armature variable, with distinct spine at apex or not.
Diagnostic Features of Larvae
  • Larva. Form robust, contracted, rather thick, tapering to last few segments, then suddenly swelling. Head trapezoidal, widest behind; ocelli small, one to three; gena never shouldered; no genal setae; labrum never longer than wide; thick; mandible without sulcus or groove on outer face; subfossal spine wanting or very minute; process of palpifer minute or wanting; last joint of maxillary palpi relatively short. Prothorax thick, having distinct proalar plates and short, more or less subulate hairs on the lateral region; pronotum posteriorly raised, projecting forward along the median line, glabrous or velvety pubescent, never striate; median suture absent or impressed; eusternum never distinct but region marked by two round, glabrous, shining spots; ventrolateral sutures a short notch; sternellar fold distinct at extremities, passing beyond spiracles; mesonotum bearing the posterior half of an x-shaped impression (scutellum distinct); metanotum with one transverse impression; legs wanting, one, two or three jointed, femur plus tibia never as long as maxillary palpus. Ampullae broad, oval, flat, the dorsal and ventral surfaces parallel, bearing two lateral and a transverse impression, though often indistinct; pleural discs not distinct nor granulate, usually a half disc of wrinkled texture; the other half obliterated by a tubercle-like swelling. Adapted from Craighead (1923).
Geographic Distribution of Tribe Biology and Economic Importance
  • Members of this tribe are known from various host plant families and several genera (e.g., Chlorophorus, Xylotrechus) are considered economically important. Species of this tribe are potentially invasive outside their native range. More information is available at the CAPS website.
Selected References to Adult Specimens
Selected References to Larvae Specimens



Amyipunga armaticollis
(Zajciw, 1964); dorsal
Cerambycidae:Cerambycinae:Clytini
Photograph © G.D. Ouellette




Cotyclytus sobrinus
(Castelnau & Gory, 1841); dorsal
♀ specimen
Cerambycidae:Cerambycinae:Clytini
Photograph © A.M. Hodson




Cotyclytus stillatus
(Aurivilius, 1909); dorsal
Cerambycidae:Cerambycinae:Clytini
Photograph © A.M. Hodson



All Clytini exemplar species images
 

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