Geocoris (Geocoris) titan Linnavuori, 1986
- Linnavuori, R., P. Kment & A. Carapezza 2014b. Order Hemiptera, suborder Heteroptera Infraorder Pentatomomorpha, superfamily Lygaeoidea 5: 192-246. Arthropod fauna of United Arab Emirates.
- Linnavuori, R.E. & A. van Harten 1997. Notes on Heteroptera (Insecta: Hemiptera) of Yemen 16: 169-236. Fauna of Saudi Arabia.
- Linnavuori, R.E. 1986a. Heteroptera of Saudi Arabia 8: 31-197. Fauna of Saudi Arabia.
- Linnavuori, R.E. 2004c. Heteroptera of the Hormozgan province in Iran. III. Cimicomorpha (Anthocoridae, Cantacaderidae, Tingidae), Pentatomorpha [sic] 48: 273-286. Acta Universitatis Carolinae, Biologica.