1914] Alfxander — Sen- or Lillle-hiown .Xeolropical Ihxatomini 43 



fore log with l)as;il quarter of feiiuir conspicuously yellow, abruptly (lark<-ning to 

 brownish-black; tibito and tarsi dark brownish black; middle and hind legs uni- 

 formly very dark brown. Wings almost uniformly brown; cells C and 8c a little 

 darker colored. Venation: Sc long, Sci much longer and more distinct than .Sc;; 

 /Ji-i rather long, a little longer than Rz beyond cross vein r and about three times 

 as long as fl: between the fork of Ks.i and r. 



Abdominal tergum, segments 1-4, orange-yellow; 5, extreme base orange-yellow; 

 remainder of 5th and (i and 7, deep vclvcty-black; genital segment orange. Ster- 

 num sinularly colored but duller. 



Holotype, 9. Sierra Madre, Chihuahua, Mexico. lid. H. Piedras \'crdes. 

 Alt. about 7,300 ft. ^Coll. C. H. T. Townseud.) Type in V. S. Nat. Mus. Coll. 



This .specie.s is closest to zonata O. S. hut I cannot make the 

 two descriptions agree. The basal segments of the antcnnje in 

 iownsendi are very dark brown; there is more black on the abdo- 

 men; the legs are not yellow (except base of fore femora) but 

 dark brown. The {)eciiliar course of Sci in zonala, ai)parently 

 ending in radius rather than in costa does not obtain in the new 

 species, where .Sc, ends in costa, Sc] being about twice as long as 

 Sco. 



Eriocera erythraea Osten Sackcn. 



ISSO. Eriocera eryihrwa Osten Sackcn; Biol. Cent. Amor.; Dipt. vol. I, p. 11- 



One 9 from Cacao, Alta Vera Paz. April h2, 1906. (Schwarz 

 and Barber). 



The mesonotal praescutum shows indications of darker brownish stripes of which 

 the median is more double. \'enation: Sc long, Sci strong, ending about opposite 

 the fork of R.+j; Sc: weak, much shorter than Sci. Rs almost in a line with Rt+i; 

 R, before cross-vein r a little loss than one-half of R.+ i; cross-vein r a little more than 

 one-half of R- before it; basal deflection of Ct/i under the middle of cell 1st iV,. 

 The specimen is in the U. S. Nat. Mus. Coll. 



Eriocera gracilis Osten Sackcn. 

 18SC. Eriocera gracilis Osten Sacken; Biol. Cent. Amer.; Dipt. vol. 1, p. li- 



One cf, Sierra Madre, Chihuahua, Mexico. Hacienda R- 

 Piedras ^■erdes. Alt. about 7,300 ft. Coll. C. H. T. Townsend- 

 Specimen in U. S. Nat. Mus. Coll. 



The mesonotal prsescutal grej-ish on dorsum, with throe black stripes of which 

 the median one is broadest in front, narrowed to a point near the suture; the lateral 

 stripes which lie on the sides of the dorsal triangle are connected on the anterior 

 margin of the sclerite with the median stripe; the sides of the prascutum are more 

 yellowish than the grey dorsal triangle; scutum and scutellum, as well as the 

 postnotum deep, rich brown. Venation: Sc rather short, ending far before the 



