b SOUTH AMERICAN TIPULIDAE 
brown, obscurely tipped with yellow, tibiae and tarsi dark brown. Wings 
whitish or subhyaUne with rather small to medium rounded brown spots on 
the membrane arranged as in the figure, many of these markings being inter- 
rupted ocelliform; these markings are clearest on the cephalic half of the wing, 
more indistinct, pale grayish, in the caudal cells. Venation: (see plate II, 
fig. 1) Sc ending at about one-third the length of Rs; Sc2 about one-third the 
length of Sci ; Rs long, angular at its origin ; basal deflection of Cui before the 
fork of M. 
Abdominal tergites light yellow, segment one with a broad brown patch 
on the sides of the sclerite; segment two with a broad brown subbasal annulus; 
remaining tergites with about the basal half dark brown, very conspicuous; 
pleurites of the male hypopygium dark brownish black, the pleural lobes yel- 
lowish, a little browned at the base; sternites mostly light yellow, the extreme 
base of the segments obscurely brown, this occupying from the basal quarter 
to one-half of the segment.. 
In the female, the brown bands on the abdominal sternites are subequal 
in width and position to the tergal annuU so that the abdomen presents an 
evenly striped appearance. 
Habitat. — Peru. Holotype, cf, Matucana, Peru, altitude 
7788 feet, July 14, 1914. (Parish coll.) Allotype, 9, topo- 
typic. Paratypes, 3 cf, Jauja, Peru, altitude 11,878 feet, 
June 23, 1914. (Parish coll.) 
In its spotted wings this insect suggests a number of Andean 
species. Liinnohia guttata Philippi ^ (now Dicranomyia chilensis 
Alexander) is described as having 16-segmented antennae and 
the thorax with a brown stripe; L. polystida Philippi"* (Chile) 
has the spots on the wings very abundant and the thorax with 
three darker stripes. D. mnsco'sa Enderlein ^ (Ecuador) and 
D. tricinda ^ Alexander (Peru) have a supernumerary cross-vein 
in cell Rs of the wings. 
Dicranomyia gibbera sp. n. 
Antennae black; thorax brown or gray with a broad darker median stripe; 
wings with a radial sector very short, about equal to the basal deflection of 
Ri+6. 
Male. — Length, 4 to 5 mm.; wing, 5.1 to 5.5 mm. 
Female. — Length, G to 7 mm. ; wing, 7 mm. 
Rostrum, palpi and antennae black, the latter short with the segments 
of the flagellum subglobular. Head with the front light gray, the vertex and 
occiput grayish brown; a brownish blotch on the middle of the vertex in front. 
3 1865. guttata Philippi, Verh. k.-k. zool.-bot. Ges. Wien, xv, p. 613. 
1913. chilensis Alexander, Proc. U. S. Nat. Mus., xhv, p. 487. 
^ 1865. polysticta Philippi, Verh. k.-k. zool.-bot. Ges. Wien, xv, p. 613. 
^ 1912. muscosa Enderlein, Zool. Jahrb., xxxii, pt. I, pp. 75, 76, fig. W^ 
^ 1913. tricinda Alexander, Ent. News, xxiv, p. 405. 
