Bob Kallal

Postdoctoral Scientist
[email protected]
Bob Kallal

Current Research

Spider phylogenetics


B.A., Political Science, Frostburg State University, U.S.A., 2009.

M.S., Towson University, U.S.A., 2011.

Ph.D., The George Washington University, U.S.A., 2017.


Kallal, R.J., and Hormiga, G. “Evolution of the pedipalp of the orb-weaver hunting spider Chorizopes (Araneae, Araneidae) revisited on a new phylogeny and description of a third species from Madagascar.” Invertebrate Systematics. In press.

Kallal, R.J., Fernández, R., Giribet, G., and Hormiga G. (2018) “A phylotranscriptomic backbone of the orb-weaving spider family Araneidae (Arachnida, Araneae) supported by multiple methodological approaches.” Molecular Phylogenetics and Evolution 126: 129-140.

Fernández, R., Kallal, R.J., Dimitrov, D., Ballesteros, J.A., Arnedo, M.A., Giribet, G., and Hormiga, G. (2018) “Phylogenomics, lineage diversification dynamics and comparative transcriptomics across the Spider Tree of life.” Current Biology 28: 1489-1497.

Kallal, R.J., and Hormiga, G. (2018) “Systematics, phylogeny, and biogeography of the Australasian leaf-curling orb-weaving spiders (Araneae: Araneidae: Zygiellinae), with a comparative analysis of retreat evolution.” Zoological Journal of the Linnean Society 184: 1055-1141.

Kallal, R.J., and Hormiga, G. (2018) “An expanded phylogeny of metaine spiders (Araneae, Tetragnathidae) with descriptions of new metaine and leucaugine taxa from Taiwan and the Philippines.” Invertebrate Systematics 32: 400-422.

Levi, H.W., and Kallal, R.J. (2017) “Araneidae.” In: Spiders of North America: an identification manual. Eds: Ubick D, Paquin, P, Cushing PE, Roth V. 2nd Ed. American Arachnological Society: Keene, NH, USA.

Kallal, R.J., and Hormiga, G. (2016) “Redescription of the Jamaican orb-weaving spider Chrysometa pecki Levi 1986 (Araneae, Tetragnathidae), including the first description of the male.” Zootaxa 4066: 95-100.

Kallal, R.J., and LaPolla, J.S. (2012) “Monograph of Nylanderia (Hymenoptera: Formicidae) of the World, Part II: Nylanderia of the Nearctic.” Zootaxa 3508: 1-64.

Gotzek, D., Brady, S.G., Kallal, R.J., and LaPolla, J.S. (2012) “The importance of using multiple approaches for identifying emerging invasive species: the case of the Rasberry Crazy Ant in the United States.” PLoS ONE 7: e45314.

LaPolla, J.S., Kallal, R.J., and Brady, S.G. (2012) “A new ant genus from the Greater Antilles and Central America, Zatania (Hymenoptera: Formicidae), exemplifies the utility of male and molecular character systems.” Systematic Entomology 37: 200-214.

Kallal, R.J., Godfrey, S.J., and Ortner, D.J. (2010) “Bone reactions on a Pliocene cetacean rib indicate short-term survival of predation event.” International Journal of Osteoarchaeology 22: 253-260.


Gustavo Hormiga