Atlantemolanum costalimai (Pereira and d’ Andretta 1955) Molano-Rendón & Vaz-de- Mello, 2019

Molano-Rendón, Arturo González-Alvarado ı Fredy & Vaz-de- Mello, Fernando Z., 2019, A new genus of dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) endemic to the Brazilian Atlantic Forest, Journal of Natural History 53 (27), pp. 1751-1765 : 1762-1763

Atlantemolanum costalimai (Pereira and d’ Andretta 1955) new combination

( Figures 1 (b)ı 4 and 5ı red star)

Deltochilum (Calhyboma) costalimai Pereira and d ’ Andretta 1955: 8ı 12 – 15ı figs. 9 – 20; Vulcano and Pereira 1964: 643.

Material examined

Type material examined. Holotype ı femaleı Espirito Santo (printed)ı Compraı Staud. 1901 (handwritten)/ Deltochilumı andrettae ı n. sp.ı (handwritten)ı P. Pereira det. (printed) 95[number unreadable](handwritten)/(red label) HOLOTIPO (printed) ( MZUSP).

Non-type material examined. BRASIL: Espírito Santo 2 females ( CEMT)ı 1 female ( SMTD)ı 1 female ( NMPC) .

Diagnosis

A. costalimai can be separated from A. riehli by the following combination of characters: (1) 1st interstria without basal callosities ( Figure 4 (c)); (2) interstrial callosities not elevatedı in lateral view almost at the same level than interstriaeı and (3) posterior margin of pronotum with dense puncturesı each puncture separated by less than one diameter.

Redescription

Female. Headı pronotal lateral marginsı protibia dorsallyı callosities of the interstriaeı mesofemur and metafemur with coppery colouration.

Pronotum ( Figure 4 (b)). Posterior margin of pronotum with dense puncturesı each puncture separated by less than one diameter. ( Figure 4 (b)).

Elytra ( Figure 4 (c–e)). Interstrial callosities not elevatedı in lateral view almost at the same level as the interstriae; the callosities vary in size along the length and between the interstriae ( Figure 4 (c)). 1st interstria without callositiesı basally; 3rd and 5th interstriae with callosities of equal size along most of the length; 7th interstria with callosities larger basallyı gradually smaller at the apex. Callosities largest on 3rd interstria and smallest on the 1st interstria.

Pygidium . With almost rounded punctures.

Sexual dimorphism. The male of this species is unknown.

Distribution ( Figure 5 ı red star)

Brazil ı ‘ Espírito Santo ’. Espírito Santo is at the same time the name of a Brazilian stateı and the former name of one of the main cities/municipalities in this same stateı which is now known as Vila Velha. Thereforeı we are not certain whether the specimens were collected in the Espírito Santo municipality or in another place of Espírito Santo state.

All examined specimens present old printed labels fromı either the end of nineteenthcenturyı or printed green labels that were used to substitute these older labels in some German museums in the first half of the twentieth century. The holotype is the only specimen whose label relates its origin to a purchase made from Staudinger (a known German insect dealer) made in 1901. Staudinger ’ s collection is currently partly housed in Dresdenı through the Bang-Haas collection ( Horn et al. 1990). As the other specimens (including those now belonging to CEMT) have been found bearing the same locality data in both Dresden and Balthasar collections (now housed in NMPC)ı we strongly believe all known specimens came from a single original lot which was originally retained by Staudinger and then by the Staudinger-Bang-Haas houseı being divided and sold by the early twentieth century. This gives support to our hopes that more old specimens can be found in private or ex-private collections mainly in Europe.

It must be said that several localities in Espírito Santo state have been extensively sampled for Scarabaeinae during the last two and a half decadesı and no other specimens have been collected so far. Vila Velha [Espírito Santo] region is nowadays part of the metropolitan area of Vitória (the state ’ s capital city)ı and some of the few remaining Atlantic forest fragments around this area were sampled as wellı with no new specimens found so far.

Figures

Figure 1. Atlantemolanum new genus and Deltochilum. (a) male Atlantemolanum riehli (Harold 1868) new combination, dorsal view; (b) female Atlantemolanum costalimai (Pereira and d’Andretta 1955) new combination, dorsal view. (c-e) A. riehli (c) mesoleg; (d) pronotum in lateral view, white arrow indicates the interrupted carina that separates pronotum from hypomeron, black arrow indicates the anterior hypomeral excavation; (e) pronotum, dorsal view; (f) Deltochilum rubripenne, pronotum in dorsal view.

Figure 4. Female Atlantemolanum costalimai. (a) head, dorsal view; (b) pronotum, dorsal view; (c) right elytron; (d) elytral apex; (e) elytral sculpture: left, detail of puntctures of the striae and interstria, and right, detail of interstria showing bright callosities; (f) metasternum; (g) ventrites; (h) mesoleg, (i) metaleg.

Figure 5. Locality map; blue circles, Atlantemolanum riehli (Harold 1868); red star, Atlantemolanum costalimai (Pereira and d’Andretta 1955).