Nu. incii, syxon^i.^oFXEOTROi'icAr. T.rM\oiu\.i:—.\LnxAxnr:R. 517 



fjiiis of tho sclorito white, ciiudad of this broadly brownish, especially 

 behiiul; tlie stripe confluent in front; a rather broad uniform stripe 

 on either side of the miihile line: tuberculato pits and pseudosuture 

 very pale, reddish; the pseudo-suturo ver}- shallow, not prominent, 

 located in tho pale jjatcli between the brown pra^scutal stripes- 

 Scutum j'cUowish-brown with four stripes, continuations of the 

 uninterrupted prsescutal stripes; scutcllum and post-notum yeUow- 

 ish-brown, the latter darker medially. Pleura* li<;ht brown; a narrow 

 white oblique stripe runs from tho cervical region back toward the 

 wmg-basis; a very broad white area, originatmg behind the precoxa 

 ruiming backward obliquely to the halteres, narrowest anteriorly! 

 Sternum pale grejosh-brown with a pale stripe across the post and 

 meso cox£P. Halteres white except the knob, which is darker. Legs: 

 coxae and trochanters white: femora pale yellowish, palest at the 

 extremities, with an imlistinct brown subapical ring; tibiae and tarsi 

 pale" yeUowish-white, last two tareal segments darker. 



Wings: costal, subcostal, ami radial cells brown; median, cubital 

 and anal cells grej-; about sbcteen largo rounded spots on the wing 

 arranged about as follows: (1), in base of cell R; (2), under origin 

 of Rs; (3), at Sc,; (4), at tip of Sc,; (5), at tip of R,; (0), at fork of 

 Rj-fs; (7), several confluent along tho cord; (8), at the tip of each 

 of the longitudinal veins; (9), at fork of M,+„ and (10), in cell R^. 

 (See fig. 26.) 



Abdomen: brown whh an indistinct darker median line on tho 

 tergum. 



Habitat.— Holotype. — :Male, Aguiia, Guatemala, Central America 

 (2,000 feet) (G. Eisen). Allotype. ~Voma\e, with the type. Para- 

 types. — Three mak«, tliree females with the type. 



Type. — In U. S. National Museum collection (Xo. 14923). 



ERIOPTERA (MESOCYPHONA) COSTALIS, new species. 



Vertex unicolorous, clear brown; mesonotum clear brown, narrowly 

 trivittate; pleural stripes indistinct. Legs pale excc{)t a narrow 

 subapical banil on femora; costal and subcostal cells of wings dark 

 with a few small dots. 



J/uZe.— Length, 2.8 mm.; wing,2.9mm. Head: rostrum and palpi 

 dark brown; antennae, front, vertex and occiput dear light brown. 



Thorax: pronotiim light yellow, the scutellum ratlier darker me- 

 dially. Mensonotu: pra^scutura uniformly light brown with three 

 very narrow indistinct dark browTi lines, tlie medial one beginning at 

 the cephalic margin of the sclerite, continuing backward, passing 

 between the tuberculate pits; lateral stripes indistuict at the ends, 

 strongly bent proximad near the middle by the pseudosuture. Tuber- 

 culate pits separated from one another by a distance equal to one and 

 one-half the diameter of either; pits black; pseudosuture elongate 



