Antennaeantennae:
paired, segmental appendages, borne one on each side of head, functioning as sense organs and bearing a large number of sensilla.
11-segmented with a 2-segmented club. Antennal setation sparse. Subantennal groovessubantennal groove:
groove or concavity lying below the antennal insertion and housing the base of the antenna. Placed between the eye (if present) and the mandibular articulation, and sometimes extends below or behind the eye.
present, short, not reaching past eyes. Eyes round, well-developed, finely faceted. Eyes deeply emarginateemarginate:
notched at the margin.
anteriorly by projection of fronsfrons:
the area between the eyes and just behind the frontoclypeal suture. In Coleoptera it is not or only rarely separated from the vertex posteriorly.
, forming a distinct canthuscanthus:
a sclerotized bar encroaching on the eye.
. Pronotal discpronotal disc:
the area of the pronotum which is visible dorsally and usually delimited laterally by the two lateral carinae. Contrasted with the paired pronotal hypomera, which extend onto the ventral surface.
convex, without distinguishing sculpture. Pronotal lateral margins widest at middle, distinctly explanateexplanate:
spread out and flattened; applied to a margin.
, finely serrateserrate:
sawlike, i.e., with notched edges like the teeth of a saw.
. Procoxal cavitiesprocoxal cavities:
external closure: Externally closed when the postcoxal processes of the hypomera meet the prosternal process or meet one another.
closed. Metacoxaemetacoxae:
the coxae of the metathorax.
narrowly separated, separation less than metacoxal length. Tarsal formulatarsal formula:
the number of tarsomeres on the fore, mid, and hind tarsi, respectively.
4–4–4. Dorsal surface with patches of dark and pale, flattened, curved setaeseta:
a sclerotized, hairlike (or scalelike) projection of cuticula arising from a single trichogen cell and surrounded at the base by a small cuticular ring.
.
The genus Namunaria is superficially similar in general appearance to Pseudocorticus. Pseudocorticus can be readily distinguished by the open procoxal cavities, antennaeantennae:
paired, segmental appendages, borne one on each side of head, functioning as sense organs and bearing a large number of sensilla.
covered in dense, short, scale-like setae, antennal clubantennal club:
an enlarged portion of the antennal apex, consisting of a variable number of antennomeres (often 3). In an incrassate, antenna the antennomeres gradually enlarge towards to apex, but if there is an abrupt change in length or width at some point, then the antennomeres beyond this are considered to be part of the club.
one-segmented, lack of antennal grooves on head, and dorsum covered in short, scale-like setae.
Namunaria guttulata (LeConte, 1863LeConte, 1863:
LeConte, J.L. 1863. New species of North American Coleoptera. Part I. Smithsonian Miscellaneous Collections, 167: 1-92.), N. pacifica (Horn, 1878Horn, 1878:
Horn, G.H. 1878. Synopsis of the Colydiidae of the United States. Proceedings of the American Philosophical Society, 17: 555-592.)
Northwest (OR, WA), Southwest (CA), South Central (MS, OK, TX), North Central (IN, OH), Northeast (NJ, NY, MD, PA, VA, WV), Southeast (NC, TN) USA; Ontario and British Columbia, Canada.
Namunaria has been collected at MV/UV lights and from under the bark of various dead hardwoods and conifers.
Abundance: Moderately common
Namunaria guttulata: Antennal segment 3 1.5 times length of segment 4. Distribution: Indiana, Maryland, Mississippi, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Virginia, West Virginia, USA; Ontario, Canada.
Namunaria pacifica: Antennal segment 3 subequalsubequal:
similar, but not equal in size, form or length.
or only slightly larger than segment 4. Distribution: California, Oregon, Washington, USA; British Columbia, Canada.
Horn (1878)Horn (1878):
Horn, G.H. 1878. Synopsis of the Colydiidae of the United States. Proceedings of the American Philosophical Society, 17: 555-592., Ivie (2002a)Ivie (2002a):
Ivie, M.A. 2002a. 127. Colydiidae, pp. 445-453 In: R. H. Arnett, Jr., Jr. and M. C. Thomas (eds.), American Beetles. CRC Press, Gainesville, Florida., LeConte (1863)LeConte (1863):
LeConte, J.L. 1863. New species of North American Coleoptera. Part I. Smithsonian Miscellaneous Collections, 167: 1-92., Stephan (1989)Stephan (1989):
Stephan, K.H. 1989. The Bothrideridae and Colydiidae of America north of Mexico (Coleoptera: Clavicornia and Heteromera). Occasional Papers of the Florida State Collection of Arthropods, 6: xii + 65 pp.
Authors: Lord NP, Nearns EH, Miller KB. 2011–2015.
Content updated Apr 2015; taxonomy updated Feb 2026
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