Protoptila bribri, Holzenthal & Blahnik, 2006

Holzenthal, Ralph W. & Blahnik, Roger J., 2006, The caddisfly genus Protoptila in Costa Rica (Trichoptera: Glossosomatidae), Zootaxa 1197, pp. 1-37 : 9-12

Protoptila bribri , new species

Fig. 5

This species is most similar to P. orotina orotina , P. orotina raposa Flint 1974 , and P. ixtala . All of these species have a similarly developed phallicata, which is elongate and very angularly bent in the middle. The different species differ most diagnostically in the development of the apex of this structure. In P. bribri it is greatly enlarged and inflated with a sclerotized ridge on its dorsal margin. Additionally, there are minor differences among the species in the shapes of the apical section of tergum X, the parameres, and the apex of sternum VIII, as shown in the illustrations.

Adult. Length of forewing: male 2.4–3.0 mm; female 2.7–3.3 mm. Color brown (in alcohol), with distinct transverse bar of whitish setae along cord.

Male genitalia. Sternum VI process prominent, slightly curved, longer than wide, apex subacute. Tergum VIII posterior margin with row of relatively short setae; sternum VIII strongly produced ventrally, not bifurcate apically, strongly narrowed, apex slightly broader, weakly emarginate. Segment IX with anterior margin broadly rounded; sternum IX medially produced posteriorly, long, narrow, apex slightly wider, angularly emarginate; posterolateral margin of segment IX without processes. Preanal appendages absent. Tergum X divided mesally to form sclerotized lateral parts with basal and apical sections; basal section subquadrate, longer than wide, apical section elongate, angularly bent from base, apex with acute apicodorsal process and numerous minute spine­like projections. Phallobase dorsally with large, semicircular, laterally compressed apodeme; ventrally with short, rod­like, articulated appendages with apical setae, appendages fitting into sclerotized pockets on ventral margin of phallobase; posteroventral margin of phallobase without paired basal or dorsolateral processes; paramere elongate, membranous, paramere spine elongate, fishhook­shaped, bulbous basally; phallicata very elongate, narrow throughout length, angularly bent near middle, apex much enlarged, with diverging apicodorsal sclerotized ridges; endophallus reduced, not noticeably everted; phallotremal sclerite lightly sclerotized, an incomplete basal ring, with curved, apicomesal projection.

Holotype male: COSTA RICA: Alajuela: Río Pizote , ca. 5 km (air) S Brasilia, 10°58’19”N, 085°20’42”W, el. 390 m, 9.iii.1986, Holzenthal & Fasth (in alcohol) ( UMSP000208539 ) ( UMSP).

Paratypes: Same data as holotype — 1 male (in alcohol) ( NMNH) ; same, except 12.iii.1986, Holzenthal & Fasth — 2 males (in alcohol) ( UMSP) ; COSTA RICA:

Guanacaste: Río Mena, 4.2 km W Santa Cecilia , 11°03’32”N, 085°26’53”W, el. 260 m, 11.iii.1986, Holzenthal & Fasth — 1 male (in alcohol) ( UMSP) ; Heredia: Estación Biología La Selva, Río Puerto Viejo , 10°26’24”N, 084°00’43”W, el. 30 m, 19.vi.1986, Holzenthal, Heyn, Armitage — 22 males (in alcohol) ( UMSP) ; Quebrada Sura, 10°26’13”N, 084°00’36”W, el. 50 m, 20­21.vi.1986, Holzenthal, Heyn, Armitage — 9 males (in alcohol) ( NMNH) ; Limón: Reserva Biológica Hitoy­Cerere, Río Cerere, Est. Miramar , 09°40’16”N, 083°01’41”W, el. 90 m, 23­24.iii.1987, Holzenthal, Hamilton, Heyn — 107 males (in alcohol) ( UMSP) ; Río Telire and small trib., SE Suretka, 09°33’14”N, 082°53’31”W, el. 48 m, 1.ii.1986, Holzenthal, Morse, Fasth — 4 males (in alcohol) ( NMNH) ; Río Uatsi , ca. 8 km (air) W Bribri, 09°37’12”N, 082°54’00”W, el. 60 m, 25.iii.1987, Holzenthal, Hamilton, Heyn — 98 males (in alcohol) ( UMSP) ; Río Banano , 16 km WSW Bomba, 09°53’17”N, 083°10’01”W, el. 150 m, 26.iii.1987, Holzenthal, Hamilton, Heyn — 17 males, 11 females (in alcohol) ( INBIO) .

Etymology. Bribri comes from the name of the indigenous people of the Talamanca mountains of Costa Rica and Panama.

Protoptila burica Flint

Fig. 6

Flint 1974: 17.

Flint (1967) noted the similarity of this species to P. cristata Flint 1967 . The most distinctive and diagnostic feature of P. burica is the shape of the apical section of tergum X, which is branched apically into an elongate, narrow, curved dorsal projection, and three shorter ventral projections.

Material examined. COSTA RICA: Cartago: Río Chitaría, rt 10, 10 km NW Río Reventazón, 09°55’12”N, 083°36’14”W, el. 740 m, 21.iii.1991, Holzenthal, Muñoz, Huisman — 1 male; Puntarenas: Quebrada Pita, ca. 3 km (air) W Golfito, 08°38’31”N, 083°11’35”W, el. 15 m, 15.ii.1986, Holzenthal , Morse , Fasth — 1 male ; Reserva Biológica Carara, Quebrada Bonita , 09°46’30”N, 084°36’18”W, el. 35 m, 18­20.v.1990, Holzenthal & Blahnik — 2 males (pinned) , 4 males (in alcohol) , 22 females; same, except 11.iii.1991, Holzenthal, Muñoz, Huisman — 42 males ; San José: Río Negro , 3.5 km SE jct. rt. 239, 09°40’48”N, 084°23’38”W, el. 230 m , 21.iii.1986, Holzenthal & Fasth — 8 males ( NMNH), 1 male, 1 female ( INBIO); Reserva Biológica Carara, Río del Sur , 1.5 km (rd) S Carara , 09°46’08”N, 084°31’52”W, el. 160 m, 13.iii.1991, Holzenthal , Muñoz , Huisman — 8 males (in alcohol) , 7 females (pinned) ; Reserva Biológica Carara, Río Carara in Carara, 09°46’41”N, 084°31’52”W, el. 200 m, 14.iii.1991, Holzenthal , Muñoz , Huisman — 1 male (pinned) , 18 males (in alcohol).

Protoptila cana Flint

Fig. 7

Flint 1974: 18.

This species is very similar to P. chitaria , n. sp., and the two undoubtedly are closely related. The most distinctive difference between them is the shape of the apex of the ventral margin of segment IX, which is closely associated with and partially fused to the ventral apex of sternum VIII. In P. cana this apex is more elongate than the ventral apex of sternum VIII and nearly straight, whereas in P. chitaria it is shorter than the ventral apex of sternum VIII and curved apically. The apices of the apical sections of tergum X are also shaped slightly different in the two species, as shown in the illustrations.

Material examined. COSTA RICA: Alajuela: 7.6 km E Artenas, Rio Grande de Tarcoles river bed, 15.xii.1987, Burdick — 1 male (in alcohol); Cartago: Río Chitaría, rt 10, 10 km NW Río Reventazón, 09°55’12”N, 083°36’14”W, el. 740 m, 21.iii.1991, Holzenthal, Muñoz, Huisman — 2 males; Río Reventazón, CATIE along Sendero E spaveles, 09°53’35”N, 083°39’04”W, el. 500 m, 22.iii.1991, Muñoz­Quesada — 1 male, 23 females; Guanacaste: Quebrada Garcia, 10.6 km ENE Quebrada Grande, 10°51’43”N, 085°25’41”W, el. 470 m, 8.iii.1986, Holzenthal & Fasth — 7 males; Río Tizate, 7.2 km NE Cañas Dulces, 10°46’23”N, 085°26’56”W, el. 275 m, 28.vi.1986, Holzenthal, Heyn, Armitage — 4 males (in alcohol); Parque Nacional Guanacaste, Quebrada Alcornoque, El Hacha, 11°00’32”N, 085°34’37”W, el. 250 m, 26.vii.1987, Holzenthal, Morse, Clausen — 3 males, 1 female (in alcohol) (INBIO); Limón: Río Uatsi, ca. 8 km (air) W Bribri, 09°37’12”N, 082°54’00”W, el. 60 m, 25.iii.1987, Holzenthal, Hamilton, Heyn — 1 male; Puntarenas: Río Ceibo, route 2 ca. 6 km W rd to Buenos Aires, 09°08’56”N, 083°22’37”W, el. 250 m, 20.ii.1986, Holzenthal, Morse, Fasth — 2 males; Parque Nacional Corcovado, Est. Sirena, Río Camaronal, 08°28’55”N, 083°35’20”W, el. 30 m, 13.iv.1989, Holzenthal & Blahnik — 2 males (in alcohol); same, except 08°28’52”N, 083°35’38”W, el. 5 m, 12­13.iv.1989, Holzenthal & Blahnik — 8 males (in alcohol); Reserva Biológica Carara, Quebrada Bonita, 09°46’30”N, 084°36’18”W, el. 35 m, 18­ 20.v.1990, Holzenthal & Blahnik — 2 males (pinned), 6 males (in alcohol), 22 females (pinned); same, except 11.iii.1991, Holzenthal, Muñoz, Huisman — 6 males; San José: Río Negro, 3.5 km SE jct. rt. 239, 09°40’48”N, 084°23’38”W, el. 230 m, 21.iii.1986, Holzenthal & Fasth — 1 male (in alcohol); Reserva Biológica Carara, Río del Sur, 1.5 km (rd) S Carara, 09°46’08”N, 084°31’52”W, el. 160 m, 13.iii.1991, Holzenthal, Muñoz, Huisman — 1 male (pinned), 3 males (in alcohol); Reserva Biológica Carara, Río Carara in Carara, 09°46’41”N, 084°31’52”W, el. 200 m, 14.iii.1991, Holzenthal, Muñoz, Huisman — 3 males (in alcohol) (NMNH). PANAMA: Panama: Canal Zone, Barro Colorado Island, Snyder­Molino trail, marker 3, 13.vii­20.ix.1988, Wolda — 9 males, 7 females (in alcohol); same, except 27.vi.­13.xi.1990, Wolda, — 5 males, 6 females (in alcohol).

Figures

FIGURE 5. Protoptila bribri, new species. Male genitalia: A—lateral; B—segment VIII apex, ventral; C—phallic complex, lateral (inset: apex of phallicata, dorsolateral); D—phallicata apex, dorsal.

FIGURE 6. Protoptila burica, Flint. Male genitalia: A—lateral; B—segment VIII apex, ventral; C—phallic complex, lateral.

FIGURE 7. Protoptila cana, Flint. Male genitalia: A—lateral (inset: apex of segment X, caudal); B—segment VIII, ventral; C—phallic complex, lateral.