Penichrolucanus alleni, 2015

Bartolozzi, Luca, 2015, A New Species of Penichrolucanus Deyrolle, 1863 (Coleoptera: Lucanidae) from the Philippines, The Coleopterists Bulletin 69 (3), pp. 389-394 : 393

KEY TO THE SPECIES OF PENICHROLUCANUS

1. Antenna with 10 articles..............................2

1′. Antenna with 8 articles................................3

2. Meso- and metatibiae toothless ( Malaysia) ... ............................. P. elongatus Arrow, 1935

2′. Meso- and metatibiae with some teeth on the external margin ( Solomon Islands)................ .................................... P. leveri Arrow, 1938

3. Mandibles visible from above; fused tarsomeres in meso- and metatarsi ( Fig. 5 )..................... 4

3′. Mandibles not visible from above (according to the original dscription); meso- and metatarsi 3-segmented (Tibet) ............................... ................... P. cryptonychus ( Zhang, 1988)

4. Two frontal tubercles present......................5

4′. Without frontal tubercles.............................6

5. Frontal transverse carina interrupted midway; protibial teeth very sharp and robust (Sumatra) ......... P. sumatrensis Arrow, 1935

5′. Frontal transverse carina complete; protibial teeth shorter and blunter (Nicobar and Andaman Islands) ................. P. nicobaricus Arrow, 1935

6. Antennal club with 3 enlarged articles ( Fig. 3 ) ........................................................................ 7

6′. Antennal club with 2 enlarged articles ( Fig. 2 ) ( Philippines)...................................................... .................. P. alleni Bartolozzi , new species

7. Frontal carina in the middle far from clypeus ( Figs. 11–12 )................................................8

7′. Frontal carina in the middle close to clypeus ( Fig. 13 ) (Sulawesi) ....................................... ................................ P. hirohiro Nagai, 2001

8. Frontal carina semicircular ( Fig. 11 ) ( Malaysia and Borneo)...................................................... .................... P. copricephalus Deyrolle, 1863

8′. Frontal carina ogival ( Fig. 12 ) (Borneo)....... .............................. P. martinii Schenk, 2006

Figures

Figs. 2–5. Penichrolucanus species. 2) P. alleni, antenna (arrow indicates sixth article); 3) P. copricephalus, antenna, 4) P. alleni, protarsus. 5) P. alleni, metatarsus.

Figs. 10–13. Penichrolucanus species, frontal view of head. 10) P. alleni; 11) P. copricephalus; 12) P. martinii;