Revision of the Palaearctic species of the Coccinella ...

134
KOVÁŘ: Coccinella transversoguttata species group and notes on other Coccinella
and legs black, small area at antero-lateral corners of propleura apricot, elytral epipleura
orange-red, mesepimera, metepimera, and sometimes narrow stripe at posterior end of metepisternum
yellow-white. In male, anterior face of fore coxa with large yellow-white spot
and ventral face of front femur with narrow yellow-white stripe. Tarsomere 3 and basal portion
of tarsomere 4 of all tarsi brown, tarsal claws brown to red-brown, black at the base.
Head 1.3 times as wide as long, 0.54-0.57 times as wide as pronotum. Apex of clypeus
truncate, straight or indistinctly concave in middle. Antero-lateral corners asymmetrical, triangular,
moderately prominent anteriorly, depressed ventrally, parallel-sided. Clypeus moderately
transverse, convex, fronto-clypeal furrow rather distinct, widely V-shaped. Frons
0.54-0.58 times as wide as head, transversely flat. Eyes small, widely oval. Inner orbits slightly
more arcuate in anterior half than in posterior one, subparallel. Long portion of temples
behind eyes straight, parallel, then widely arcuate, strongly narrowing towards occipital aperture.
Surface granulate-reticulate, rather coarsely punctate, covered with short pubescence.
Punctures 0.9-1.2 times as large as eye facets, setae along orbits as long as 3-4 diameters and
on clypeal margin as 6-7 diameters of eye facet. Antenna as in Fig. 4.
Pronotum trapezoidal, 1.83 (1.80-1.84) times as wide as long, moderately convex. Anterior
margin of pronotum deeply and rather narrowly emarginate, the emargination trapezoidal,
moderately convex in middle. Anterior corners prominent, their inner margin flatly S-shaped.
Outer margin rather widely arcuate, meeting the inner one at sharp, nearly rectangular, subsymmetrical
angle. Pronotum widest just before posterior corners. Posterior corners widely
obtusangulately arcuate, situated at posterior 0.45 of pronotal length. Distance between anterior
and posterior corners equal to 0.75 of pronotal length. Lateral margins nearly regularly
arcuate or gradually somewhat more slightly so in posterior one third, converging anteriorly,
not reflexed, rather strongly bordered. Base widely arcuate, sides gradually straightened, slightly
emarginate before posterior corners. Surface finely granulate-reticulate, finely and densely
punctate. Punctures 0.9-1.2 times as large as eye facets, irregularly spaced, separated by 1-2.5
diameters, becoming somewhat denser and separated by 0.9-2 diameters basally. Scutellum
small, equilaterally triangular, at base as wide as 0.08-0.10 of pronotal width. Surface densely
covered with small inequal punctures, interstices between punctures smooth.
Elytra widely oval, in male 1.07-1.15 times and in female 1.08-1.15 times as long as wide,
rather slightly convex, in both sexes about 2.5-2.8 times as long as high, nearly regularly or
indistinctly more strongly convex in posterior 0.4 of elytral length (lateral view). Elytral base
slightly concave, humeral angle widely arcuate, not projecting anteriorly, its inner margin
scarcely depressed. Humeral bulge slightly developed, small. Outline of the disc rather widely
and regularly convex in caudal view, in short lateral portion gradually straightened and in
anterior 0.4 of elytra distinctly depressed under humeral bulge. Comparatively wide longitudinal
furrow near lateral margin under humeral bulge is distinctly dilated in the reach of the
lateral black spot, occupying about half of its width. Lateral margins widely arcuate, somewhat
less so in anterior third than in posterior two thirds, narrowly reflexed and moderately
bordered. Apex of elytra acuminate, scarcely caudate. Surface with traces of reticulation consisting
of very dense micropunctures, finely punctate. Punctures smaller, sparser and somewhat
shallower than on pronotum, 0.7-0.9 times as large as eye facets, separated by 1.5-4
diameters, becoming coarser, 1.2-2 times as large as eye facets and separated by 0.9-1.5
diameter along lateral margins.