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)

prominent recurved hooks near the ventral anterior margin of the~ sixth abdominal segment. Hydrometra procera HORVATH 1905. (Plate VI). Hydrorr\etra procera HORVATH, G. Annales Musei Nationalis Hungarici, 1905, p. 416. Described from Sapporo, Japan. There is a series in the Hungarian National Museum labeled ..Japonia Okayama, H. Sauter", and a pair in the Kansas University Entomological Museum labeled „Kyushul Fukuoka (Chikuzen) 8. VI. 1929 Esaki and Hori". These last were sent to the senior author by the kindness of Professor TEISO ESAKI. A female specimen of this species from China is before us, It is labeled: „Spirit Valley, Kanking. Kiangau Province, China, H. F. Loomis, Oct. 2, 1919." This is a stout little species without acetabular pits and a beak almost as long as the head. The male has two stout widely separated pig-like projections on the sixth ventral abdominal segment. Hydrometra annamana sp. n. (Plate VI). Size and Color. Length, 12.7 mm (male holotype), 13.9 mm (female allotype), 11.9—12.6 mm (two male paratypes), 13.4—14.1 mm (five female paratypes); the general color of the body of the holotype is a yellowish brown; a median longitudinal line on the pronotum and lateral margins of pronotum reddish brown; ventral parts of head somewhat darker and frosted in appearence; frosted stripe along the sides of the body from the anterior margin of the pronotum to the end of the abdomen; the female allotype is similar in color except that the body is more yellowish; median longitudinal white stripe on pronotum bordered on each side by a reddish-brown band on the posterior lobe; white longitudinal stripe On the hemelytra. Structural Characteristics. Head: Length, 110 units (holotype), 115 units (allotype); the ratio of the anteocular part of the head to the postocular part is given by the formulas AO:PO: :74:28 (holotype), 77:29 (allotype); on the holotype the dorsal interocular groove is short and deep; the ventral interocular groove is about the same length as the dorsal groove but is broader; on a male paratype the lower groove is long, extending from about the middle of the anteocular part of the head nearly to the pronotum, the postocular portion of the groove being deeper and broader than the anteocuiar portion; the dorsal inter-