NO. inco. SYNOPSIS OF NEOTROPICAL LIMNOIilNAi—ALEXANnEJi. 507 



light j'ellow, browner in front. Ploura^ liglit yellow with two narrow 

 dark bro\\ii stripes, the upper continuinj:; from the side of the pro- 

 notum, obliquely ctiudnd to the base of the halteres; the lower short, 

 beguming under the precoxa, ruiminj;; backward to the mosocoxa. 

 Halteres, browixish- white. Legs: coxse and trochautera light yellow; 

 femora, tiba3 and tai-si ycHowish-brown, uniform. 



Wings: hyaline, stigma pale bro%v'n. 



Abdomen: tergum dark bro-WTi, uniform; sternum uniform Ji;j;ht 

 yellow. 



Habitat. — Ilolotype. — Female — Totonicipan, Guatemala, C'cnl ral 

 America (1902), (G. Eisen). 



Type. — In U. S. National Museum collection (No. 149.33). 



Near G. cognatella Osten Sacken; differing in coloration, pleural 

 stripes more distinct, etc.; venation (So very short, etc.). Delicata 

 has Rs rather long, arcuated at its origin with a slight spur; the 

 distance on R from (i]) -of Sc to origin of Rs almost as long as Rs 

 itself. 



GONCMYIA iGONOMYIA) UNICOLOR, new species. 



Head dark gray; autennse blackish-bro\ni; mesonotmn brown; 

 pleura? light brown, not striped; legs uniform yellowish-brown; 

 wings hyaline. 



Male. — Length, 3.9 mm.; wing, 4.6 mm. 



Female. — Length, 4.8 mm.; wing, 5 mm. 



Head: rostrum and palpi bro\m; antennje unifornd_v dark blackish- 

 bro^vn throughout; front, vertex and occiput uniform blackish-gray. 



Thorax: mesonotum, praescutum medium brown; pseudosuture 

 prominent, dark brown; scutum similar to the praescutum; scutellum 

 pale, yellowisli ; post-notum medium browni. PleursB rich light bro\ra, 

 the stermmi rather darker. Halteres brown, paler at tlie extreme 

 base. Legs: cox£e, trochanters, femora, tibia and tarsi, yellowish- 

 brouii, unicolorous. 



Wings: hyaline. (See fig. 15.) 



Abdomen: tergum medium brown throughout; hypopygium 

 slightly paler; sternum paler, j^ello-wish. 



Habitat. — Holotype. — Female, Agima, Guatemala, Central America 

 (2,000 feet), (G. Eisen). AUotype.— Male, with the type. Fara- 

 type. — ifale and female, with the type. 



Type. — In U. S. National Museum collection (No. 149.34). 



Tlirec specimens, two from Toto}ucopan, Guatemala, July, 1902, 

 female and male (G. Eisen), and one from C6rdoba, Mexico 

 (ilay 8, 1908) (F. Knab), are larger, mesonotum more greyish, 

 pseudosuture and tuberculate pits black, conspicuous and venation 

 slightly different. I believe them to be variations of the species. 

 Length, male 6.1 mm.; female, 7 mm. I have labeled them 

 unicolor, var. 



