Conocassis trisulcata
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Ordo: Coleoptera
Familia: Histeridae
Genus: Conocassis
Name
Conocassis trisulcata Caterino & Tishechkin, 2014 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type locality
SURINAME: Sipaliwini, upper Palumeu River [2.4770°N, 55.6294°W].
Type material
Holotype female: “SURINAME: Sipaliwini, CI-RAP Survey camp 1, upper Palumeu, 225m, 2.47700°N, 55.62941°W, Flight intercept. 10-16.iii.2012, A.E.Z. Short, SR12-0310-TN1” / “Caterino/Tishechkin Exosternini Voucher EXO-02504” (NZCS).
Diagnostic description
Length: 2.0 mm, width: 1.5 mm; as for generic description, with the following specific characters: body rufobrunneus; frontal stria extending to middle of epistoma; side of pronotal process with three distinct creases, only the lowermost narrowly, deeply invaginated; pronotal disk with distinct carina extending anterad from basolateral corner toward median invagination; pronotal process rather evenly rounded from base to apex in lateral profile; pronotal disk very finely alutaceous behind median process; median elytral interval only moderately depressed in basal half, the 4th dorsal stria not displaced laterad, only weakly arcuate throughout length, texture of median interval finely granular throughout; texture of outer intervals finely alutaceous basally, becoming smooth posteriorly; epipleuron vertically strigose on and above marginal bead; no trace of 5th dorsal stria present; presternal suture marked by anteriorly divergent prosternal carinal striae at sides, not impressed across middle; abdominal ventrites 2-4 only very faintly strigose at sides; propygidium strongly convex, about as long as pygidium along midline; propygidial punctures coarse and deep, slightly elongate, only slightly more so at sides, punctures largely smooth within; pygidium strigose in basolateral corners, becoming simply, finely punctate apicomedially.
Remarks
In addition to the characters remarked under the preceding species, this species’ relatively shallow median elytral depression (Fig. 1C), and simply carinate and arcuate 4th dorsal stria will separate it, as will the presence of three distinct lateral creases on the pronotal process (Fig. 2B), only the lowermost of which is distinctly invaginated. This species also lacks an indication of the presternal suture at the middle (Fig. 3B).
Etymology
This species is named for the three distinct lateral pronotal creases.
Original Description
- Caterino, M; Tishechkin, A; 2014: New genera and species of Neotropical Exosternini (Coleoptera, Histeridae) ZooKeys, 381: 11-78. doi
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