1924 ] 
On the Genus Halohates 
117 
Oshanin, Verz. False. Hem., vol. I, p. 500, 1908. Van Duzee, 
Cat. Amer. Hem., p. 432, 1917. Hungerford, Bull. Univ. Kansas, 
vol. 21, p. 116, 1919. 
This species is widely distributed over the Pacific and At- 
lantic Oceans, and I have examined two specimens from Hawaii, 
kindly presented to me by Dr. S. Isshiki. Habita: ^‘Many sta- 
tions on the voyage from the Admiralty Islands to Japan, and 
from Japan to Honolulu” (White). Oshanin states that ‘Tn 
parte occidentali intertropicali oceani Pacifici, sub. 38 lat. bor. 
in vicinitate Japonise quoque investa species.” 
Halobates matsumurai sp. nov. (Fig. D). 
Halohates sericeus Matsumura (nec Eschscholtz), Thaus. 
1 ns. Japan, Addit., vol. I, p. 27, pi. II, fig. 8, 1913. 
Body ashy gray, very sericeus. Head with two brown obli- 
que spots at the posterior margin; eye moderately projected, 
black. Antenna black with the apical half of the fourth joint 
brownish, not longer than the body, first joint nearly as long as 
the remaining three joints put together, second and fourth 
joints nearly equal in length, third joint shortest. Rostrum 
shiny black, reaching anterior coxa. Pronotum with moderately 
sinuate anterior and posterior margins. Anterior leg black; 
coxa, trochanter, and, in the female, the base of femur pale 
yellowish brown; femur very incrassate in the male; the apical 
projection of tibia somewhat acute; first tarsal joint much 
longer than the second, which is about two-thirds the length of 
the first and with claws near the base. Intermediate tibia 
about two-thirds the length of and much thinner than femur; 
first tarsal joint about four times as long as the second. Post- 
erior tibia about half the length of femur; tarsus one-third of 
tibia, with the first joint shorter than the second. Body pale 
yellowish brown beneath. The first male genital segment black 
above with lateral and posterior portions brown; pale brown 
or gray beneath; the horn-like processes very slender and black; 
second segment pale brown beneath. 
