Abstract
Nine species of Parallelodemas Faust are reported from China. In addition to the previously recorded P. impar Voss, we found P. docile Faust, P. vicinum Faust and the following six species newly described herein: P. dimetans sp. n., P. feae sp. n., P. petilum sp. n., P. plumosum sp. n., P. setifrons sp. n. and P. tumens sp. n. Parallelodemas tarsale Voss from Java is transferred to Lepidomyctides Yoshihara and Morimoto (comb. n.). Lectotypes are designated for P. docile, P. imperfectum Faust, P. perfectum Faust, P. tardum Faust and P. vicinum. Several morphological modifications with unknown functions are documented, illustrated and discussed. Males of some species have special setae on rostrum, antennal scape and mesotarsus. A medially notched epistome apparently occurs in both sexes but seems to wear off in females, probably during the preparation of oviposition sites. The mandible is unusual in having a convex, edentate inner face and incisor-like structures on the outer face.
Highlights
Material and methodsAmong the currently accepted 548 genera of baridine weevils, Parallelodemas Faust is notable for having numerous morphological peculiarities. Faust (1894) noticed modified setae on the male mesotarsus of two of his five species and a loss of the two distal tarsites in another [ present but minute]. Voss (1941) commented on the basally bifurcate prosternum of female P. impar Voss, and Marshall (1945) and Morimoto and Yoshihara (1996) on apparently abducent mandibles
We studied five Oriental species near P. tarsale (BPBM, IZCAS, SNSD, ZIN) and several species of Caenobaris, Eumycterus, Neosharpia and Trephognathus Marshall from Africa, Central Asia and India
We describe the three specimens from Shaanxi as P. petilum and informally assign to this complex the four others
Summary
Material and methodsAmong the currently accepted 548 genera of baridine weevils, Parallelodemas Faust is notable for having numerous morphological peculiarities. Faust (1894) noticed modified setae on the male mesotarsus of two of his five species and a loss of the two distal tarsites in another [ present but minute]. Voss (1941) commented on the basally bifurcate prosternum of female P. impar Voss, and Marshall (1945) and Morimoto and Yoshihara (1996) on apparently abducent mandibles.
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