Amphicerus (Caenopharada) caenophradoides ( Lesne, 1895 )

Jerzy, Borowski, 2022, Taxonomic changes in Bostrichidae (Insecta, Coleoptera), Zootaxa 5154 (5), pp. 590-594 : 591-592

Amphicerus (Caenopharada) caenophradoides ( Lesne, 1895)

Bostrychus caenopharadoides Lesne, 1895: 174

Bostrychus malayanus Lesne, 1899a: 255 n. syn.

Geographical distribution: Cambodia, Indonesia (Sumatra, Borneo), Laos, Malaysia, Thailand, Vietnam.

3. Bostrychoplites megaceros Lesne, 1899 and Bostrychoplites cornutus ( Olivier, 1790)

So far B. megaceros has been only known its type specimen, namely a male collected in Tanzania (Kondoa) (MNHN). After describing it ( Lesne 1899b), Lesne never again addressed the species in his later diagnostic papers, and the only mention of the species was including B. megaceros in Bostrichidae’s world catalogue ( Lesne 1938). B. megaceros was also missing from the monograph of the Bostrichidae of tropical Africa ( Lesne 1924). Lesne described B. megaceros mainly due to the size of the specimen and, consequently, more forward protruding outgrowths. The holotype is 18 mm long, while the maximum length of the related B. cornutus was supposed to be 17.5 mm ( Lesne 1899b). More pronounced morphological traits in larger specimens of the genus Bostrychoplites are quite normal, particularly visible in its most frequently caught representative, namely B. cornutus .

B. cornutus is a very common species representing the Afrotropical distribution. It is a polyphagous species and can develop in the wood of various tree species occurring from semi-deserts to rainforests. The conditions for larvae development in such habitats are often extremely varied, hence the collections often have specimens of different body sizes. In an analysis of the material from many museums the body length of B. cornutus was found to vary from 6 to 18 mm, so some specimens can be even three times as large as the smallest ones. B. maegaceros is such an example of the upper limit size of B. cornutus . Full synonymy of the species names along with its geographical distribution is presented below.