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)

along the margins of the prothorax and abdomen of the female allotype; underside of body with frosted appearance; hemelytra with longitudinal white stripe. Structural Characteristics. Head: Length, 90 units (holotype), 108 units (allotype); the ratio of the anteocular part of the head to the postocular part is given by the formulas AO:PO::55:26 (holotype), 66:32 (allotype), on the male holotype the dorsal interocular groove is obsolete; the ventral interocular groove is about as long as the diameter of an eye, broad and deep; the clypeus is large and fruncate, about one- half again as broad as long; the rostrum surpasses the eyes by about three-fourths of the postocular distance on both the male and female; the first three segments of the antennae of the holotype and paratype are present and the lengths of the segments are in the following ratio; 15:26:78:X (holotype); the antennae are missing from the allotype. Pronotum: Length, 48 units (holotype), 55 units (allotype); an encircling row of faint pits parallel to the anterior margin and close to it, the pits very faintly defined on the dorsal side but somewhat more prominent on the ventral side; posterior lobe with median longitudinal row of very faint pits bordered by an irregular row of pits on each side; each of the propleura with a marginal row of five or six small pits. M e t a n o t u m : The hemelytra are large and iong, extending nearly to the posterior margin of the fifth abdominal segment on the holotype and to the end 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 28 : 50 (holotype); 33 : 56 (allotype); the acetabula are pitted approximately the same on both the male and female; on the left side of the body of the male holotype the anterior and middle acetabnla have two pits on each side of the cleft; the posterior acetabulum has one or two faint pits; the pitting is the same on the right side of the body. Femora: The anterior femora of the holotype extend to the middle of the expanded part of the head while the posterior femora extend almost to the tip of the abdomen; the anterior femora of the allotype extend to the base of the antennae and the posterior femora extend nearly to the tip of the abdomen.