Adendrocera carmelita Roza, Hansen, and Ferreira, 2024

Roza, André Silva, Hansen, Aslak Kappel & Ferreira, Vinicius S., 2024, Redescription of Adendrocera Wittmer, 1976 (Coleoptera: Phengodidae: Penicillophorinae) with Description of a Second Species of the Genus from Guatemala, The Coleopterists Bulletin 78 (2), pp. 155-164 : 161

Adendrocera carmelita Roza, Hansen, and Ferreira , new species zoobank.org/ urn:lsid:zoobank.org:act:D90B0E63-6085-40AF-A991-CF82CCEA5967 ( Figs. 2A–H , 3A–G , 4A, B )

Type Locality. Puerto Arturo, Carmelita, Maya Biosphere Reserve, San AndrÉs, PetÉn, Guatemala.

Etymology. The new species is named after the Carmelita community, which through the Cooperativa Carmelita (https://turismocooperativacarmelita. com/en/carmelita-cooperative) helps to conserve the biodiversity around the species’ type locality in the Maya Biosphere Reserve. This is done through minimal-intervention agroforestry and tourism activities that give the community a livelihood, while also providing an incentive to protect the natural forest.

Diagnosis. Body overall brown to dark brown, head dark brown with posterior region yellowish, antennomeres I–III light brown, IV–XI brown, pronotum dark brown, elytra and legs brown, abdomen dark brown with tergites VII–X yellowish. Eye small, not protruding, occupying close to one-fourth of head width in dorsal view, length of postocular area about 1.5× length of the eye in lateral view, eye posterior margin straight. Antennomere I slightly longer than II, II around 2× longer than III, IV 3× longer than III, subequal to subsequent antennomeres until X. Pronotum distinctly longer than wide. Elytron around 5× longer than wide.

Description, Male. Measurements. Total length: 3.50 mm.Head length: 0.56 mm.Head width: 0.41 mm. Pronotum length: 0.49 mm. Pronotum maximum width: 0.38 mm. Elytron length: 1.00 mm. Elytron maximum width: 0.22 mm. Morphology. Head slightly longer than wide, integument glossy, shagreened, finely punctured, eye small and not protruding, occupying about one-fourth of head width in dorsal view ( Fig. 2C ), length of postocular area about 1.5× eye length in lateral view, eye posterior margin straight ( Fig. 2D ); Antennomere I slightly longer than II, II around 2× longer than III, IV 3× longer than III, subequal to subsequent antennomeres until X ( Fig. 2G ). Pronotum distinctly longer than wide, integument glossy, shagreened, finely punctured, anterior margin slightly rounded, lateral margins subparallel, posterior margin medially pointed ( Fig. 2C ). Elytron with dense setigerous punctures, 5× longer than wide ( Fig. 2A ). Hind wings with venation as noted in the genus description ( Fig. 1G ). Abdomen and aedeagus as noted in the genus description ( Figs. 3A–G ). Coloration. Body overall brown to dark brown, head dark brown with posterior region yellowish, antennomeres I–III light brown, IV–XI brown, pronotum dark brown, elytra and legs brown, abdomen dark brown with tergites VII–X yellowish.

Female and Immature Stages. Unknown.

Biology and Distribution. Adendrocera carmelita was collected in lowland tropical rain forest during February, before the end of the dry season, although atypical rainfall had already occurred during the year of collecting. It was collected in a flight intercept trap in a mature part of the lowland rainforest of the Maya Biosphere Reserve ( Fig. 4B ). The specific site of collection is used only for tourism and is thus conserved; it has high tree species richness and includes huge mahogany trees [ Swietenia macrophylla King ( Meliaceae )]. Specimens of A. carmelita were never seen alive, so there is no data regarding their biology and habits.

Remarks. The holotype, when stored in alcohol, had a light brown coloration similar to A. flavula . When it was dried to be photographed by VSF, it displayed a dark brown coloration ( Figs. 2A, B ). The holotype was sent to ASR for examination, but during transport it dried out, which ended up damaging the specimen. It is currently glued to a card and has gained a pale yellow, more-or-less uniform coloration ( Fig. 2E ). The left antenna is broken, with only nine antennomeres, and the right antenna has only seven antennomeres. The left proleg is missing. Abdominal segments V–X were dissected and stored in a glycerin vial on the same pin as the specimen. Most of the ventral morphology is currently not visible, and the specimen is probably too fragile to undergo remounting in the future ( Fig. 2E , but a ventral side photograph is given here: Fig. 2B ).

Holotype. GUATEMALA. “AKH-GUA22-3c/ Guatemala: Municipio de San / Andres: Puerto Arturo , 17.5407 / -90.1919, h 200m, 3.II.2022 / flight intercept trap \\ mature rainforest, leg A.K./ Hansen and S.K. Rojas / NHMD 2022 -EN-002\\ Adendrocera carmelita / Roza, Hansen and Ferreira 2023/ Holotype (NHM)”.

Figures

Fig. 2. Adendrocera carmelita, new species, holotype. A) Habitus, dorsal view, B) Habitus, ventral view, C) Head and pronotum, dorsal view, D) Head and pronotum, lateral view, E) Habitus, dorsal view, glued to a card after damage during transport, F) Head, frontal view, G) Left antenna, lateral view, H) Right protarsus, lateral view.

Fig. 3. Adendrocera carmelita, new species, holotype. A) Abdominal segments VI–X, dorsal view, B) Abdominal segments VI–X, ventral view, C) Aedeagus, dorsal view, D) Aedeagus, ventral view, E) Sternite IX, ventral view, F) Tergites IX and X, dorsal view, G) Aedeagus, lateral view.

Fig. 4. Distribution of Adendrocera species. A) Distribution of Adendrocera in Guatemala, B) Lowland trop- ical rainforest of the Maya Biosphere Reserve near the site where A. carmelita, new species was collected in a flight intercept trap.

Fig. 1. Adendrocera flavula, holotype. A) Habitus, dorsal view, B) Habitus, lateral view, C) Head and pronotum, dorsal view, D) Left antenna, lateral view, E) Head and pronotum, lateral view, F) Labels, G) Hind wing.