Ptomaphagus (Tupania) costarica Peck, 2003

Peck, Stewart B., 2003, Four New Species Of Ptomaphagus From Costa Rica And Panama (Coleoptera: Leiodidae: Cholevinae: Ptomaphagini), The Coleopterists Bulletin 57 (4), pp. 405-412 : 406-408

Ptomaphagus (Tupania) costarica Peck , new species

( Figs. 1–6 )

Type Series. Holotype male: COSTA RICA. Cartago Province, Pan-American Highway km 45, 6 km NW El Empalme, 8–26.VI.1997, forest FIT, 1,975 m elevation, 97-19, N 98459 W 838589300, (S. & J. Peck) ( CMNC) . Paratypes. 67 (38 with same data as holotype); remaining with following data. (18- INBio, 53- SBPC, 21- SEMC) .

COSTA RICA. Alajuela Province. Peñas Blancas, 5.III. 1988, 700 m, FIT , 2 males (E. Cruz). Peñas Blancas, 1,420 m, 20 May 1989, FIT , 2 (J. Ashe, R. Leschen, R. Brooks ) ( SEMC) . Guanacaste Province. 6 km NE Santa Elena, Santa Elena Forest Reserve , 1,640 m, cloudforest FIT, N 10820 . 70 W 84847.89, 11–17. VI .01, 18 specimens (S & J Peck, 01–12). Puntarenas Province. Est. Pittier, 4.2 km SO del Cerro Gemelo , 1,670 m, 26 SET–5 OCT 1995, Interseccion Carroña, LS330900,577400 # 8279, INBIO CRI 002-470935 , 39 (E. Navarro ) . Est. Pittier, Send. [ero] Altamira , 1,700 –1,760 m, 10–20 May 1991 Trampa con Mesturacion, LS331500,576800 # 47929. INBIO CRI 002-405629 (A. M. Maroto ) . Las Alturas, Stanford Biol. Sta, ca. 29 km NE San Vito , 1500, 27 May 1993, FIT , 2 (J.S. & A.K. Ashe #063) ( SEMC) Las Tablas, Finca Miguel Sandi, 1,920 m, 1–4 May 1995, LS322500,601500 # 7670, INBIO CRI 002-465865 , 80 , 85 , 88 (M. Segura ) . Monteverde, 2–9.VII, 1983 cloud forest FIT , 2 males (D. H. Lindeman ); same as preceeding but 15–23.VII.1983, 1 female; 21.II–1.III.1983, 1 male, 1 female; 11– 18. VI .1983, 3 males, 2 females. Monteverde Biology Station , N 10819.672 W 84849.141, 10–17. VI . 01, 1,515 m, cloudforest Fit, 3 (S. & J. Peck, 01–10); same as above but 1,540 m, 01–9, 3. San Luis, Reserva Biol. Monteverde, 1,000 –1,350, 20–27 Jun 1994, LS250850,449250 # 3029, CRI 001-923099 (Z. Fuentes). Monte Verde, Cerro Arripos, on border with Guanacaste Prov., 1,769 m, 12 May 1989, FIT , 1 (J. Ashe, R. Leschen, R. Brooks) ( SEMC). Monte Verde , 1,520 m, 21 May 1989, FIT , 1 (J. Ashe, R. Leschen, R. Brooks) ( SEMC). Monte Verde , trail near lab, May 1993, FIT 1 (C. Michalski) ( SEMC) . San Vito de C.[oto] B.]rus], Las Cruces , 9.VII–7.VIII.1982, 1,200 malaise trap, 1 female (B. Gill) . San Jose Province. San Juan, 14 km NE Finca Zurqui , 1,480 m, 4–6 Jul 2000, 10829570N 84809220W, FIT , 3 (J. Ashe, R. Brooks, Z. Falin) ( SEMC) . PANAMA. Chiriqui Province. 5.6 km N Boquete, La Culebra trail, 1,450 m, 15–19 Jun 1996, 88499230N 828259180W, FIT , 3 (J. Ashe, R. Brooks) ( SEMC). 6.0 km NE Boquete, 1,650 m, 14–19 Jun 1996, 848900N 82826900W, FIT , 6 (J. Ashe, R. Brooks) ( SEMC). Cerro Pando , 1,950 m, 17–18 Jun 1996, 88549420N 828439180W, FIT , 7 (J. Ashe, R. Brooks) ( SEMC). Cerro Pelota , 1–14.VII.1982, 1,500, 3 females, 1 male (B. Gill); same but 5–15.VII.1982, 1,500 m, 1 female (B. Gill). La Fortuna, Cont. Divide Trail, 1,450 m, 14–17, VI .1996, 88469N 828129W, FIT, 1 (J. Ashe, R. Brooks) ( SEMC). 27.7 km W Volcan, Hartmann’s Finca , 1,450 m, 14– 17. VI .1996, 88469N 828489W, FIT, 1 (J. Ashe, R. Brooks) ( SEMC) .

Derivation of Name. The specific epithet refers to the country of Costa Rica and is used as a noun in apposition.

Diagnosis. This is the only species of the subgenus Tupania described from south of Mexico and north of Brazil (Peck et al. 1998). The subgenus is characterized by the flabellate antenna ( Figs. 1 , 2 ), whereas the subgenus Adelops lacks this antennal apomorphy. The species is characterized by the shape of the aedeagus and spermatheca.

Description. Shape elongate oval. Body length 3.8–4.1 mm, body width 1.9–2.1 mm. Color uniform dark brown except antennal base lighter brown. Antenna medium length ( Fig. 2 ), reaching to base of pronotum when laid back; club segments flabellate (segments 5–10 elongated and pointing anteriorly when antennae are held to the sides), and with club segments silvery pruinose in appearance. Pronotum widest at base, with fine dense transverse striae. Elytra with fine dense oblique striae. Flight wings functional. Mesosternal carina distinct, of medium development in profile. Aedeagus long, thin, gently curved to apex ( Fig. 3 ); dorsal view of tip slightly ogival ( Fig. 4 ); internal flagellum (internal sac) long and thin, slightly undulous. Spermatheca shaft of uniform thickness ( Fig. 5 ), basal (apical) end swollen and with enlarged distal tip ( Fig. 6 ).

Notes. This is the most frequently collected species of Costa Rican Ptomaphagus . All records are from forest and cloud-forest habitats, from 700 m to 1,920 m elevation, and from the months of February to July.

Figures

Fig. 1. Habitus of Ptomaphagus (Tupania) costarica n. sp. Total body length 3.9 mm.

Figs. 2–6. Structures of Ptomaphagus (Tupania) costarica n. sp. 2) Dorsal view, left antenna; 3) lateral view, aedeagus; 4) dorsal view, apex of aedeagus; 5–6) spermatheca. Scale line for antenna and aedeagus 0.2 mm, for spermathecae 0.1 mm.