New records of Asian and Australopapuan Cassidinae, with a ...

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LECH BOROWIEC
Clypeus narrow, as wide as long, flat, with fine clypeal grooves running close
to margin of eyes, converging in a triangle with obtuse top (Fig. 3). Surface
glabrous, with several small punctures. Labrum shallowly emarginate. Prosternal
process strongly expanded apically (Fig. 3), apex rhomboidal, with few large
punctures, its surface appears slightly irregular.
Antennae elongate, exceeding lateral margin of pronotum by their last two
segments. Length ratio of antennal segments: 100:55:88:66:57:55:72:72:66:66:122.
Segment 3 approximately 1.6 times as long as 2 and circa 1.3 times as long as
segment 4 (Fig. 4).
Tarsi moderately broad, last segment not longer than the third, without
projecting flanks, claws not reaching beyond marginal setae, simple (Fig. 5).
Aedeagus quite stout, distinctly narrowed basally, apex broadly rounded with
small apical process. In profile, aedeagus gently curved ventrad (figs 6, 7).
TYPES
Holotype: “THAI 1-8.V.1993, SOPPONG PAI 1800 m., PACHOLATKO &
DEMBICKY leg.”; four paratypes: the same data (holotype preserved at the Department
of Systematic Zoology and Zoogeography, University of Wroc³aw, Poland;
paratypes at the Department of Systematic Zoology and Zoogeography, University
of Wroc³aw, Poland, in coll. J. VOØISEK, Jirkov, Czech Republic, and in coll.
J. BEZDÌK, Brno, Czech Republic).
Cassida paiensis n. sp.
ETYMOLOGY
Named after its locus typicus, Pai in NW Thailand.
DIAGNOSIS
Regularly convex elytral disc, simple claws and almost wholly black pronotal
and elytral disc place this species close to Cassida probata SPAETH and its
relatives. The group comprises also Cassida subprobata (CHEN et ZIA),
C. mroczkowskii BOROWIEC et ŒWIÊTOJAÑSKA, and two species described in this
paper – C. chiangmaiensis n. sp. and C. dembickyi n. sp. C. subprobata differs
distinctly in yellow abdomen, with only first sternite with black margins or spots
(in C. paiensis abdomen in middle is black). C. mroczkowskii differs in sparse
punctuation of elytral sides with distance between punctures partly as wide as to
slightly wider than puncture diameter (in C. paiensis punctuation is dense, punctures
almost touching each other). C. dembickyi and C. chiangmaiensis differ in
uniformly yellow antennal segments or with only the last segment infuscate
apically (in C. paiensis at least three apical segments are infuscate). C. probata is
the most similar, especially in its infuscate apically antennae, but differs in more
sculptured elytral disc, with distinct folds also behind the postscutellar elevation