156 Journal New York Entomological Society. t^'o'- ^^• 



yellowish orange. Legs mostly a nearly uniform light brown. Claws slender, 

 strongly curved, the anterior and mid unidentate, the pulvilli rudimentary. 

 Genitalia; basal clasp segment short, subquadrate ; terminal clasp segment one 

 half longer than the basal, distinctly swollen near the middle, strongly chiti- 

 nized ; dorsal plate broad, broadly and triangularly emarginate, the obtuse 

 lobes setose ; ventral plate narrow, greatly produced, narrowly rounded ; setose 

 apically. Harpes strongly chitinized. 



Female. — Length 2 mm. Antennae nearly as long as the body, sparsely 

 haired, dark brown; 14 segments, the fifth with a stem three fourths the 

 length of the basal enlargement, which latter has a length 2j4 times its diam- 

 eter; terminal segment produced, the cylindric basal enlargement with a 

 length four times its diameter and apically with a long, moderately stout 

 process, the latter greatly swollen basally. Palpi ; first segment irregular, the 

 second slender, with a length four times its diameter, the third nearly as long 

 as the second, more slender, the fourth as long as the second, slender. Meso- 

 notum reddish brown, the submedian lines yellowish orange. Scutellum fus- 

 cous yellowish, postscutellum and abdomen mostly yellowish orange. Ovi- 

 positor short, the terminal lobes broadly oval and sparsely setose, otherwise 

 nearly as in the male. Type Cecid a23o8. 



The remarkable form described above was collected by Prof. C. 

 H. T. Townsend in and near a tent in Montana of the Province of 

 Jaen, northern Peru, in September, 1911, Rio Charape. The elevation 

 was about 5,000 feet and at the upper limits of the tropical rain- 

 forest region. This species is tentatively referred to the above named 

 genus because it runs thereto in our key and exhibits affinities there- 

 with on account of the greatly produced ventral plate and the strongly 

 chitinized harpes. The greatly produced stems of the flagellate an- 

 tennal segments separate this species from K. vibiirni Felt. 



THE HALIPLID^ OF NORTH AMERICA, NORTH 



OF MEXICO. 



By Robert Matheson^ 

 Ithaca, N. Y. 



Family HALIPLID^. 



1832. Dyticea, Tribus V, Erichson, Genera Dyt., p. 46. 1836. Hydrocanthares, 

 Tribus Haliplides, Aube, Icon. Col. Eur., V, p. 15. 1838. Hydrocanthares, 

 Tribus Haliplides, Aube, Species Col., VI, p. 2. 1837. Dytiscidse, Gruppe 

 Haliplini, Erichs, Kaf. Mk. Brandbg., p. 183. 1859. Haliploida, Thoms. 



