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)

Dr. STAL when he described H. vittata from the Philippines for he compared it with H. stagnorum L. Mr. KIRKALDY in describing II. Greeni from Ceylon in 1898 also failed to mention H. lineata ESCH^CHOLTZ. Dr. E. BERGROTH (1) 1915 presented excellent

1 comparisons between H. lineata ESCHSCHOLTZ and H. Greeni KIRKALDY. We show the differences in otir drawings'on Plate. AVe have seen specimens labeled „Manila, P. I. Dec. 1924, R. C. McGregor coll."; ,.Limay Bataan Prov. Luzon, P. I., R. C. McGregor coil."; N. and W. Shores of L. Bay. P. L, A. M. Reese coll." The above are in the U. S. National Mttseum. BERGROTH lists this species from Samarang, java and the Vienna Museum has a female specimen or two from Henaratgoda, Ceylon, whieh must be this species. Hydrometra Maidli* sp. n. (Plate VIII). S i z e a n d C o 1 o r. Length, 10.2 mm to 12.3 mm: the general color of the body light brown with the abdominal tergites somewhat darker and shining except last one; a median longitudinal frosted line on postocular part of head and extending the length of the pronotum; a ctirved frosted stripe above the anterior acetabulum and a faint streak on side of the abdomen. Structural Characteristics. Head: Length, 107 units; the ratio of the anteoctilar part of the head to the postocular part is such that the formula expressing the relationship is AO:PO: :69:29 (male); the dorsal interocular groove not longer than the diameter of \an eye; the ventral interocular groove long extending from anterior margin of the eye throughout most of the length of the postocular; clypeus conate bluntly pointed; the rostrtim surpassing the eyes by abotit half the postocular distance: the antennal formula is: lst:2nd:3rd :4th: : 16:40:80:40 (female). Pronotum: Length. 54 units, an encircling row of pits parallel to the anterior margin; median longittidinal line of pits on posterior portion of pronotum, a row either side of median line and a few other pits laterad. Metanotum: The hemelytra undeveloped, in most of the specimens about as long as the metanotum. Coxae: The distance between the first and second coxae is to that between the second and third as 30:50; all the acetabula are