Stenobrimus bolivari Redtenbacher, 1906

Stenobrimus bolivari Redtenbacher, 1906 View in CoL

( Fig. 45)

Stenobrimus bolivari Redtenbacher, 1906: 37 View in CoL , pl. 1: 1.

HT, ♀ (juvenile): Dolores, Tayabas, Mazarredo; Stenobrimus bolivari Redt. View in CoL ; Holotipo; MNCN, Cat. Tipos N ° 7631 [ MNMS] .

- Bruner, 1915: 228.

- Rehn & Rehn, 1939: 416. (Redescription).

- Zompro, 1996b: 455, fig. 5 (♀, ♂).

- Zompro, 2004: 211, figs.

- Otte & Brock, 2005.

- Bresseel, 2009: 7. (Notes on rearing and description of egg). - Bollens & Krijns, 2010: 10.

- Lit 2010: 2.

- Hennemann et al., 2016: 18, figs. 31-33, 54.

- Brock & Büscher, 2022: 521.

Material examined

1 ♀, 1 ♂: ex Zucht F. Hennemann 2009, Herkunft: Philippinen, Luzon Id., Quezon NP, leg. Bresseel et al. 2008 [ FH, No’s 0680-1 & 2] ;

7 ♀, 10 ♂, 2 ♂ (penultimate instar), 1 ♂ (n3): ex Zucht F. Hennemann 2009, Herkunft: Philippinen, Luzon Id., Quezon NP, leg. Bresseel et al. 2008 [ FH, No’s 0680-3 to 22] ;

1 ♀: Philippinen, Catanduanes Island , 1981 [ FH, No. 0680-23] ;

2 ♀: Philippinen, S Luzon Island, Provinz Quezon, Tayabas, Mount Banahao , local collector II.2011 [coll. FH, No’s 0680-24 & 25] ;

3 ♀, 2 ♂: Philippinen, S Luzon Id., Bicol Region, Provinz Albay, Mount Mayon Volcano , Tabaco, local collector II.2011 [ FH, No’s 0680-26 to 33] ;

– A. O. bicolanus Rehn& Rehn,1939 couple (S-Luzon, Albay Province, Guinobatan) [© Albert Kang, https://www.inaturalist.org/observations/57705545]. – B. O. bicolanus Rehn&Rehn, 1939 ♀ (reared from SE-Luzon, Sorsogon Province, Mount Pulog). – C. O. bicolanus Rehn & Rehn, 1939 ♀ (reared from SE-Luzon, Sorsogon Province, Mount Pulog ). – D. O. bicolanus Rehn & Rehn, 1939 ♂ (reared from SE-Luzon, Sorsogon Province, Mount Pulog ). – E. O. uichancoi Rehn & Rehn, 1939 ♀ (N-Luzon, Ifuago Province, Banaue) [© Albert Kang, https://www.inaturalist.org/observations/57611226].

– A. Live ♀ with contrasty colouration. – B. Closeup of head and thorax of live ♀ shown in A. – C. Head and thorax of live ♂. – D. Brown variety ♀. – E. ♀ habitus in lateral view [ FH 0680-4 ]. – F. ♂ habitus in lateral view [ FH 0680-13 ]. – G. Terminalia of ♀ in dorsal view showing the multi-dentate apex of the subgenital plate [ FH 0680-4 ] .

1 ♂: Philippinen, S Luzon Id., Bicol Region , Prov. Camarines Sur, Lagonoy, I.2012 [ FH, No. 0680-34] ;

1 ♀, 1 ♂, 1 egg: Philippinen,SLuzonId., Bicol Region , ProvinzCamarines Sur, Lagonoy [ FH, No’s 0680-35, 36 & E2] .

Remarks. – This species is not uncommon in the southern Luzon and appears to be mostly restricted to moist mountainous habitats. They are almost exclusively found on ferns ( Polypodiaceae ) and lowgrowing members of the clubmoss family ( Lycopodiaceae ), which represent their natural host-plants (Zompro, 1996b: 455). Bresseel (2009) provided information on the captive breeding of this species and presented brief descriptions of both sexes and the eggs.

The specimens at hand show notable variability in colouration as well as the armature of the head, body and limbs, which was confirmed by captive breeding of stock originating from Quezon National Park ( Fig. 45 A-D). Variability although is more pronounced in ♀,which range in general colour fromdrab over ochre and varioustones of brown and more rarelymay have greenish hues.Aboutone-third of the specimens have a straw-coloured medio-longitudinal streak running along the dorsal body surface, which usually terminates on abdominal tergum IV or V. The sometimes rather lichenose colour pattern provides good camouflage ( Fig. 45A). Nymphs are mostly various shades of green throughout their development.The mesonotum mostly bears a single pair of distinct median mesonotals but the unique specimen available from Catanduanes has an additional pair of medio-lateral mesonotals, that are just slightly shorter than the median mesonotals. In all other aspects however, the specimen agrees well with the numerous examples from Luzon, which rarely exhibit very small medio-lateral mesonotals. Body lengths: ♀ 63.0-74.0 mm, ♂ 52.0- 63.5 mm.

Distribution. – S-Luzon, Bicol Region: Province Quezon (Mt. Cristobal, Tayabas, Mazarredo, Dolores [MNMS – type-locality]; Mount Banahao, Tayabas [FH]; Mount Banahao, Alitao River, 600 m [OZ]; north-west of Tayabas 975 m [ANSP]; Quezon National Park [FH]); Province Albay (Mount Mayon, Tabaco [FH]); Province Camarines Sur (Lagonoy [FH]); Province Laguna (Majayjay [USNM]; Ube [USNM]). Catanduanes Island [FH].