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)

ocular groove of tlie allotype is the same as the holotype and paratype and the ventral groove is similar to that of the paratype except that the anteocular portion is relatively longer, beginning near the base of the expanded part of the head; clypeus large, bluntly conical and polished; the rostrum surpasses the eyes by about one-half the postocular distance on the holotype but does not extend quite so far on the allotype; the first two antennal segments of the male holotype are present and their lengths are in the ratio of 19:45; the ratio of the lengths of the antennal segments of the allotype is 18:43:X:40; the third segment could not be measured accurately due to its curvature. Pronotum: Length, 58 units (holotype), 64 units (allotype): an encircling row of pits parallel to the anterior margin and close to it; the posterior lobe with median longitudinal row of pits whieh has a row of pits on each side and also on each lateral margin, each of the propleura with an irregular row of four or five pits; the pitson the allotype are more irregularly placed and more numerous than on the holotype. Metanotum: The hemelytra are large and long, extending nearly to the posterior margin of the fourth abdominal segment on the holotype and nearly to the middle of the fourth abdominal segment on the allotype. C o x a e : The distance between the first and second coxae is to that between the second and third coxae as 36:60 (holotype), 40:64 (allotype); all the acetabula are pitted; on the holotype the anterior acetabulum on the left side of the body has two pits anterior to the cleft and three pits posterior to it; the middle acetabulum has twa pits anterior to the cleft and four pits posterior to it; the third acetabulum has one large pit at the top; the pits are similarly arranged on the right side of the body; on the left side of the body of the allotype the anterior acetabulum has two pits on each side of the cleft; the middle acetabulum has three pits on each of the cleft; the third acetabulum has two pits; the pits on the right side of the body are similarly arranged except that the middle acetabulum has four pits posterior to the cleft instead of three. F e m o r a : On the holotype the anterior femora slightly surpass the apex of the head and the posterior femora do not extend quite to the tip of the abdomen; the anterior femora of the allotype do not extend quite to the apex of the head and the posterior femora extend slightly beyond the posterior margin of the fifth abdominal segment.