Moesz Gusztáv - Soós Lajos (szerk.): A Magyar Természettudományi Múzeum évkönyve 28. (Budapest 1934)
Hungerford, H. B. ; Evans, N. E.: The Hydrometridae of the Hungarian National Museum and other studies in the family. (Hemiptera)
6. Two pairs of conspicuous tufts on the first genital segnient of male (viewed from above) H. transvaalensis sp. n. One pair of conspicuous tufts on the first genital segment of male (7). 7. First genital of male, as seen from above, broadest near the middle and with dorso-lateral depressions on caudal half H. africana sp. n. First genital of male, as seen from above, broadest near the front, without depressions (8). 8. Caudal process of male upturned and a marked ventral longitudinal keel on first genital H. ambulator STAL. Caudal process only slightly upturned and without a well marked ventral longitudinal keel on first genital H. alboiineolata REUTER. 9. Hair tufts or elevations of sixth ventral of male arrising on anterior half (10)* Hair tufts of sixth ventral oi male on posterior half ... (11). 10. Large elevations on sixth ventral capped with brush of stiff black hairs H. hoplogastra HALE. and H. papuana KIRK. No elevations on sixth ventral, linear hair tufts placed laterally H. Hutchinsoni sp. n. 11. First genital of male with latero-ventral depressions H. Fanjahira sp. n. First genital of male without depressions H. Julieni sp. n. 12. Linear hair tuft guarding a depression on the side of the first genital of male H. rhodesiana sp. n. Not as above (13). 13. First genital of male of normal length with hairy elevations near posterio-lateral margin of first genital H. Smithi sp. n. First genital of male long, cylindrical with a small black peg-like spine on the side (14). 14. Posterior margin of fifth ventral abdominal segment of male with two elevations H. Illingmorthi sp. n. Posterior margin of fifth abdominal segment of male without elevations (15). 15. The peg-like spine on the anterio-ventral portion of first genital. Terminal process long H. Halei sp. n. The peg-like spine on the side and near the middle of the first genital. Terminal process short ...... H. Horvathi sp. n.