OSTEN SACKEN ON WESTERN DIPTERA. 205 



Belongs to my subgenus Arrhenica (Monogr., iv, p. 252), and is 

 closely allied to my E. spinosa from New England. 



In my Monograph, I omitted to mention that Megistocera chilensis 

 Philippi from Chili is very probably not a Megistocera at all, bnt an 

 Eriocera with long antennae. This is the only South American species 

 with long antennae which I know of as yet, and the circumstance that 

 it belongs to Chili is in keeping with certain other analogies already 

 noticed between the Chilian and the Californian fauna. 



Eriocera brachycera n. sp., $ 2 . — Antennae short in both sexes ; 

 five posterior cells; thorax brownish-yellow, with four brown stripes; 

 abdomen brown. Length, male, 14 mm ; female, with ovipositor, 22 mm . 

 Antennae of the male about as long as head and thorax together; basal 

 joints reddish, the remainder brown ; the first joint of the flagellum is 

 the longest; the three following but little shorter; the end of the last 

 has the appearance of bearing a seventh minute joint ; antennae of the 

 female shorter than those of the male; the first joint of the flagellum 

 is the longest; the following joints gradually decrease in length and be- 

 come indistinct; frontal tubercle brownish above, yellowish in front; it 

 bears a tuft of blackish hair. Thorax brownish-yellow, sometimes more 

 grayish above, with four brown stripes ; pleurae brown, with a hoary 

 bloom, which extends over the coxae. Abdomen brown, but little hairy; 

 valves of the ovipositor but very little curved, long and narrow, ending 

 in a blunt point; halteres reddish, with a brown knob; legs brown ; 

 base of femora reddish. Wings strongly tinged with brown ; stigma 

 brown, oval ; five posterior cells, the second on a long petiole. 



Sab. — White Mountains (H. K. Morrison). Two males and a female. 



I find now that what I described in the Monogr., iv, p. 253, as the 

 female of Eriocera spinosa is the female of the present species. 



Section VI. — Amalopina. 



Amalopis calcar Osten Sacken, Monogr., iv, p. 268. — A single male^ 

 from Webber Lake, Sierra County, July 25, does not show any percepti- 



| ble difference from the eastern specimens, except that it is somewhat 



] paler in coloring; the male forceps is yellowish and not brownish ; the 

 venation is exactly like tab. ii, f. 14, except that both the second sub- 

 marginal and second posterior cells are petiolate and not subsessile 

 (the same is the case with most specimens of A. calcar ; the one whose 

 wing is figured happened to be somewhat abnormal). 

 Amalopis n. sp. — One female specimen from Crafton, near San Ber- 



i nardino, Cal., in March. Body brownish ; wing immaculate ; venation 

 like 1. c, tab. ii, f. 14, except that the praefurca is a little shorter, the 

 second posterior cell petiolate. I do not name it, as I have only a single 



; damaged specimen. 



Pedicia obtusa n. sp.— I have seen a single specimen of this species 

 in Mr. Henry Edwards's collection in San Francisco. It was taken near 

 Saucelito, Marin County, Cal., in the spring. Not having the specimen 



