196 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Chili, and two fossil species have been found in the Prussian amber. I 

 am not aware of such species having been found in other countries, 

 although Eriocerce with short antennae in both sexes are everywhere 

 abundant in the tropics. 



Pedicia is represented by a single species, analogous to the Eastern 

 American and the European species, but different from both. 



The new genus Phyllolabis, with two species, is peculiar to California,, 

 and remarkable for the large development of the forceps of the male. 



Of the two sections intermediate between the Tipulidw brevipalpi and 

 longipalpi, no Cylindrotomina have as yet been discovered in the western 

 region. The Pty diopter ina are represented by two species:— 



Ptijclioptera lenis n. sp., which belongs to the whole western region 

 from California to Colorado. 



Protoplasta vipio n. sp., perhaps the most interesting of all the Cali- 

 fornian Tipulidw, closely allied to the Chilian Tanyderus, the fossil amber- 

 genus Macrochile, and the North American Protoplasta fitchi. 



Bittacomorpha has not as yet been found in California, but B. clavipes 

 occurs in Oregon. 



The Tipulidw longipalpi, in contrast to the brevipalpi, are very abund- 

 antly represented in California, both in the number of species and of 

 specimens. The larvse probably live on the roots of the rich and abund- 

 ant Califoruian grasses. I have abstained from working up this part 

 of my collection, owing to the large number of closely allied species and 

 my insufficient knowledge of the Tipulidw of the Atlantic States. 



The gigantic Holorusia rubiginosa is a peculiar Californian form. 

 However, Dr.Loew,in establishing the genus, mentions Holorusiw from 

 Java (Centur., iv, 1); elsewhere he describes one from the island Bour- 

 bon. 

 Pacliyrrhince are much rarer in California than in the Atlantic States. 

 A species of Dim occurs in California; but I have only a single im- 

 perfect specimen (San Geronimo, Marin County, April 19). 



Section I. — Limnobina. 



Geranomyia canadensis (Westwood), Osten Sacken, Monogr., iv, p. 

 80.— Male and female from Los Angeles, February. A common species 

 in the Atlantic States. 



Dicranomyia badia (Walker), Osten Sacken, Monogr., iv, p. 72.— 

 Common in the Atlantic States. San Rafael, Cal., March 31, April 13. 



Dicranomyia defuncta Osten Sacken, Monogr., iv, p. 76.— Common 

 in the Atlantic States near springs or water running over dams. 

 Santa Cruz. Cal., May 21, three males iu the same situation. I ob- 

 served the 'structure of the forceps, peculiar to this species, on the 

 specimens when they were still alive. A single specimen from Webber 

 Lake, July 24, has the wings much less densely spotted, and with a 

 cross-vein iu the submarginal cell. The cross-vein, however, may be 

 merely adventitious. 



