Plocamocera lena Opitz, 2010

Opitz, Weston, 2010, New taxa of Epiphloeinae Kuwert (Cleridae) and Chaetosomatidae Crowson (Coleoptera: Cleroidea), Insecta Mundi 2010 (123), pp. 1-28 : 18-19

Plocamocera lena Opitz , new species

Figure 15 , 34 , 58 .

Holotype. Male. ECUADOR: Orellana: Res. Ethnica, Waorani , 1 km S of Onkone Gare Camp, 0039S 7627W, 18-I- 1994, 216 m, Fogging terre firma forest, T.L. Erwin ( USNM). (Specimen point mounted, antenna and gender label affixed to paper point; support card; locality label; USNM acronymic label; Holotype label.)

Paratypes. Three specimens. Ecuador: Orellana: Tiputini Biodiversity Station, near Yasuni National Forest , 00 o 37’S 76 o 08’W, 9-II-1999, 220- 250 m, fogging terre firme forest, T.L. Erwin ( WOPC, 1) ; Reserva Ethnica, Waorani , 1 km S of Onkone Gare Camp, 00 o 39’S 76 o 27’W, 1-VII- 1995, 216 m, T.L. Erwin ( USNM, 1) ; idem, 2-II- 1996, 220 m, T.L. Erwin ( WOPC, 1)

Diagnosis ( Fig. 58 ): Specimens of this species resemble superficially those of P. iota Opitz , from which they are distinguished by the coloration of the pronotum and legs. In P. lena , the pronotum is uniformly dark brown and the legs are completely stramineous, whereas in P. iota the pronotum is castaneous at the sides and the legs are bicolorous.

Description. Size: Length 3.8 mm; width 1.2 mm. Integument: Cranium black; thorax dark brown; legs yellow; elytral color variegated, predominantly dark-castaneous, flavotestaceous triagonal posthumeral macula well developed. Head: Antenna as in Fig. 15 . Thorax: Pronotal anterior margin notably projected at middle; elytral epipleural margin with conspicuous trichobothria; protibial anterior margin with 1 spine. Abdomen: Pygidium narrow scutiform in females, extraordinarily robust in males; aedeagus as in figure 34.

Variation. Size: Length 3.8-4.0 mm; width 1.5- 1.4 mm. Other than size, the available specimens are quite homogeneous.

Natural History. The available specimens were collected in January, February, and July from a tropical forest, by fogging, at from 216 to 250 m.

Distribution. Known only from the forested environs of Reserva Waorani, In eastern Ecuador.

Etymology. The trivial name lenis (= soft) is a Latin adjective. I refer to the velvety appearance of these beetles.

Taxonomic Notes. The key to species of Plocamocera Spinola ( Opitz 2004: 28) should be modified as follows to accommodate this species:

4(3'). Antennomere 10 robust, only slightly longer than antennomere 9 ............................................ 5 – Antennomere 10 slender, considerably longer than antennomere 9 ........................................... 6

5(4). Pronotum castaneous at sides; legs bicolorous ( Brazil: Mato Grosso) ............................................ ......................................................................................................... Plocamocera iota Opitz

– Pronotum uniformly dark brown; legs stramineus ( Ecuador: Orellana) ....................................... ............................................................................................. Plocamocera lena Opitz , n sp.

Figures

Figure 1-15. Antennae. 1) Amboakis ampla. 2) Amboakis capitata. 3) A. stenosis. 4) A. waodani. 5) Madoniella aspera. 6) M. divida. 7) Plocamocera quadrula. 8) P. clinata. 9) Amboakis antegalba. 10) A. diffusa. 11) Madoniella spilota. 12) Amboakis demagna. 13) Epiphloeus erwini. 14) Madoniella darlingtoni. 15) Plocamocera lena.

Figure 25-38. Aedeagi. 25) Amboakis ampla. 26) A. antegalba. 27) Amboakis demagna. 28) Amboakis capitata. 29) A. diffusa. 30) A. waodani. 31) Epiphloeus erwini. 32) Epiphloeus pulcherrimus. 33) Madoniella divida. 34) Plocamocera lena. 35) Pyticeroides latisentis. 36) P. moraguesi. 37) P. turbosiris. 38) P. ustulatis.

Figure 47-58. Habiti. 47) Amboakis ampla. 48) A. antegalba. 49) A. diffusa. 50) Amboakis demagna. 51) A. waodani. 52) Epiphloeus erwini. 53) Madoniella aspera. 54) Madoniella darlingtoni. 55). Madoniella divida. 56) Madoniella spilota. 57) Plocamocera clinata. 58) P. lena.