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)
above the anterior acetabulum and a frosted stripe on the sides of the abdomen bordered beneath by a darker line; body more or less frosted, especially the venter: in the winged forms there is a white median line on the hemelytra. Structural Characteristics. Head: Length, 90 units: the ratio of the anteocular part of the head to the postocular part is such that the formula expressing the relationship is AO:PO: :58:26; the ^dorsal interocular groove shorter than the diameter of an eye; ventral interocular groove very long traversing the posterior two-fifths of the anteocular and all of the postocular and broader and deeper between the eyes than elsewhere; clypeus conate; rostrum surpassing the eyes by about half of the postocular distance; the lengths of the antennal segments have the follow T ing ratio, beginning with the basal one: 14:29:52:35 (male). Pronotum : Length, 43 units in brachypterous male and 55 units in winged female, an encircling row of small pits parallel to the anterior margin; two irregular rows of pits parallel to lateral margin of posterior lobe, the posterior half of the median line pitted and a few pits in a row on either side. > Metanotum: Length, 48 units (male); hemelytra of holotype short, extending but slightly beyond the metanotum, those of allotype attaining anterior margin of penultimate abdominal segment. Coxae: The distance between the first and second coxae i's to that between the second and third as 27:50 (holotype); two or three pits on each side of the cleft on the anterior and middle acetabula and one pit on top of posterior acetabulum. Femora: Anterior femora not surpassing antennal tubercles; posterior femora not surpassing abdomen in males and the anterior margin of the ultimate abdominal segment in the female. Abdomen: Length, 134 units (male), 162 units (female); the male without processes on underside of sixth segment; the ventral surface of last two abdominal segments somewhat hairy; the long golden hairs more numerous caudally but not in definite patches as in H. Maidli sp. n.; the caudal process horizontal in female; shape of terminal abdominal segments shown on Plate VIII. Described from ten specimens from .,W. Sumatra, Fruhstorfer" and five specimens from ..Buitenzorg, Java 4—0—09 Bryant & Palmer collection."
