Biroia fuscicornis, Sharkey & Clutts, 2011

Sharkey, Michael J. & Clutts, Stephanie A., 2011, A revision of Thai Agathidinae (Hymenoptera, Braconidae), with descriptions of six new species, Journal of Hymenoptera Research 22, pp. 69-132 : 79-80

Biroia fuscicornis (Cameron) Figs 3 5

Disophrys fuscicornis Cameron 1903 [BMNH, examined], Malaysia (Sarawak).

Cremnops satapensis Cameron 1907 [BMNH, examined], Malaysia (Sarawak).

Isopronotum seminigripenne Enderlein 1920, syn. n.[MZPW, examined], Indonesia (Sumatra).

Isopronotum tricolor Enderlein 1920, syn. n.[MZPW, examined], Indonesia (Sumatra).

Biroia soror van Achterberg and Long 2010, syn. n.[RMNH, examined], Vietnam.

Diagnosis.

There is only one species of Biroia in Thailand though it is extreme in its color variation. The head and pro- and mesothorax vary from entirely black to orange. In Thailand there is little variation between these two extremes, although several of the orange forms have the vertex black. One specimen from Brunei has the head mostly black and the mesoscutum black in the posterior 2/3. The wings are melanic-infuscate basally and milky white distally. 28S sequence data for four specimens of the melanic form and one specimen of the orange and black form are identical ( Fig. 2 ).

Biroia fuscicornis Cameron 1903, Cremnops satapensis Cameron 1907, Isopronotum seminigripenne Enderlein 1920, Isopronotum tricolor Enderlein 1920, and Biroia soror van Achterberg and Long 2010 are all considered here as junior synonyms of Biroia fuscicornis . The major differences between these nominal species are in coloration and it is noteworthy that all three of the taxa described by Enderlein are from the same locality, Sarawak, and presumably from similar dates. Biroia abdominalis ( Enderlein 1920) is also very similar and may represent the same species but until sequence data are available we choose to keep it separate, in agreement with van Achterberg and Long (2010).

GenBank accessions.

H0030: #HQ667945 (black form). H0018: #HQ667942. H0020: #HQ667943. H0049: #HQ667944. H0082: #HQ667941

Distribution.

Peninsular Malaysia, Borneo (Sarawak, Brunei), Indonesia (Sumatra), Singapore, Thailand, Vietnam. Distribution maps can be found at http://purl.org/thaimaps/bfuscicornis.

Examined specimens are deposited in the following collection: MZPW, BMNH, HIC, USNM, UKM, QSBG, RMNH.

Braunsia. Key to Thai species of Braunsia

Only two species are known from Thailand; however three species from Peninsular Malaysia are included due to their likelihood of occurring in southern Thailand.

1a	Dorsal head and mesoscutum entirely yellow	2
1b	Dorsal head and mesoscutum entirely reddish brown	Braunsia sumatrana Enderlein
1c	Dorsal head black and mesoscutum melanic or mostly melanic	3
1d	Dorsal head black, mesoscutum yellowish orange	Braunsia fumipennis (Cameron)
	https://binary.pensoft.net/fig/11219
2a	Apex of antenna yellow, hind tibia with 13 or more spines	Braunsia chaweewanae Sharkey, sp. n.
2b	Apex of antenna melanic, hind tibia with 12 or fewer spines	Braunsia smithii Dalla Torre
	https://binary.pensoft.net/fig/11220
3a	Mesosoma with many infusions of yellow color especially on pronotum and propodeum	Braunsia comosa Enderlein
3b	Mesosoma mostly melanic with the lateral lobes of scutellum sometimes deep reddish black; pronotum and propodeum melanic	Braunsia burmensis Bhat & Gupt a
	https://binary.pensoft.net/fig/11221

Figures

Figure 2. Bayesian phylogram inferred from 28 S (region D 2 - D 3) sequence data aligned by secondary structure. Bayesian analysis runtime = 736,000 generations (25 % burnin). Branch support: Bayesian posterior probabilities / bootstrap (1,000 replicates). (-) indicates bootstrap support below 60.

Figure 5. Biroia fuscicornis Cameron, light morph a lateral head b dorsal head c lateral mesosoma d dorsal mesosoma e dorsal metasoma.

. Figure 3. Biroia fuscicornis Cameron, dark morph a lateral habitus b fore wing.