Taxonomy of ' Euconnus complex'. Part I. Morphology of Euconnus s. str. and revision of Euconnomorphus Franz and Venezolanoconnus Franz (Coleoptera: Staphylinidae: Scydmaeninae)
Author
Jałoszyński, Paweł
text
Zootaxa
2012
3555
55
82
journal article
10.5281/zenodo.282872
d3aa1877-6488-466b-aa12-e60639a0cb4d
1175-5326
282872
Venezolanoconnus andinus
Franz
(
Figs. 59–61
,
65–66, 68–70
)
Venezolanoconnus andinus
Franz, 1988
: 81
;
Fig. 25
.
Material studied
.
Holotype
: 3: four labels: "Bosque de la Carbonera /
2000 m
, Umg. Merida /
Venezuela
, lg. Franz"" with "SA273" on the reverse side [white, printed; reverse handwritten], "
Venezolanoconnus
/
andinus
m. / det. H. Franz" [white, handwritten and printed], "3" [white, printed], "
Holotypus
" [red, handwritten] (
NHMW
).
Diagnosis.
This species can be identified on the basis of the pronotum only slightly broader than long and strongly narrowing anterad.
Redescription.
Body of male (
Fig. 59
) strongly convex, elongate but moderately slender, with moderately long appendages, BL
1.58 mm
; glossy, uniformly light brown with slightly lighter palps; vestiture slightly lighter than cuticle.
Head (
Figs. 60–61
,
66
) rhomboidal in shape, broadest at eyes, HL
0.25 mm
, HW
0.35 mm
; occipital constriction distinctly narrower than half HL; tempora much shorter than eyes, strongly convergent caudad; vertex strongly transverse, convex; frons confluent with vertex, slightly convex, subtrapezoidal and steeply, abruptly declining towards strongly transverse clypeus; supraantennal tubercles barely marked; eyes large and strongly convex, kidney-shaped and transverse in relation to the long axis of the head, each composed of ca. 50 small and smooth ommatidia. Dorsal punctures on head fine and sparse, inconspicuous; setae long, moderately dense, erect, those on vertex and tempora directed caudad. Antennae (
Fig. 59
) slender, gradually thickening towards apices, AnL
0.63 mm
; antennomeres I–II elongate; III–V each about as long as broad; VI–X each slightly transverse; XI 1.6× as long as broad, nearly symmetrical, with blunt subconical apex.
Pronotum (
Fig. 59
) in dorsal view approximately subtrapezoidal, broadest in posterior third, PL
0.40 mm
, PW
0.45 mm
; anterior margin short and slightly arcuate; lateral margins strongly rounded, especially in posterior third, so that hind pronotal corners are not marked and sides form a regular arch with rounded posterior pronotal margin; base of pronotum without foveae. Punctures on pronotal disc very fine, inconspicuous; setae long, moderately dense and strongly erect, those on sides of pronotum bristle-like, distinctly thicker than those in middle.
Elytra (
Fig. 59
) broadly oval and much more convex than pronotum, broadest distinctly behind middle, EL
0.93 mm
, EW
0.78 mm
, EI 1.19; base of elytra distinctly arcuate; humeral calli prominent, each sharply delimited mesally by subhumeral line as long as 0.4× EL; elytral apices separately rounded. Punctures on elytral disc more distinct and denser than those on pronotum but only superficial and with diffused margins; setae moderately long, moderately sparse and suberect, about as thin as those on vertex and distinctly thinner than those on sides of pronotum.
Hind
wings well-developed, twice as long as elytra.
Legs (
Fig. 59
) moderately long and slender; all tibiae straight.
Aedeagus (
Figs. 68–70
) moderately stout, AeL
0.15 mm
, with indistinctly delimited, subtriangular apical part (possibly slightly distorted during the previous preparation in the only known male); internal structures strongly asymmetrical, with long and curved sclerite projecting apically; parameres very broad, with subapical groups of several setae.
Female.
Unknown.
Distribution.
Western
Venezuela
, Mérida State.