F. R. COLE 23 



Apelleia vittata 



Apelleia vitlala Bellardi, 1. c. 



(Transl.) "Male. Fuscous, yellow vittate. Head small, depressed in front. 

 The eyes are finely and uniformly reticulated, contiguous at the base of the 

 antennae and at the epistoma. Vertex small, dark brown, rather long brown 

 pilose. First and second joints of antennae short and subequal, the third 

 twice the length of the first two. The palpi yellowish pilose. Thorax convex 

 and covered with dense yellowish pile, yellow in ground color. Three large 

 longitudinal fuscous vittae, the median reaching from anterior margin to scutel- 

 lum, those on the sides not reaching the anterior margin and joined with the 

 median vitta at the base. Pleura flavous, pectus dark brown. The scutel- 

 lum is large, yellow and with yellow pile. Halteres luteous, knobs fuscous. 

 Abdomen large, short, broad and rather rounded; very convex, and with yel- 

 lowish pile. The abdominal segments all fuscous, with stripe on posterior 

 margin, the band about equal in width to one-third of the segment ; yellowish 

 red in color, the posterior and lateral margins contiguous. Venter concolorous, 

 in small part fuscous, the bands largely yellow. Legs all yellowish brown, 

 except the apex of the fifth joint of the tarsi of anterior legs, and second, third, 

 fourth and fifth joints of posterior tarsi which are black. Posterior claws 

 long, pointed and black; the anterior claws mostly rufous. Wings yellowish, 

 at base subhyaline, longer than the abdomen. 



Length of body, 11 mm. Wing expanse, 26 mm." 



Habitat. — Playa Vicente, Mexico (Salle). Coll. Bellardi. 



OCNAEA 



Ocnnea Erichson, Entomographien, p. 155, (1840). 



fEriosoma Macquart, Dipt. Exot. 



Exetaxis Walker, Insecta Saunders. 



Ochaea Hunter, Trans. Amer. Ent. Soc. Phila., xxii, p. 151. 



Head rather short and occiput not swollen. Proboscis very 

 short, covered by the lower point of the face.. The antennae are 

 placed on the vertex, almost erect, longer than the head, three 

 jointed, the first two joints short and the third long and varying 

 in shape. The second joint with a few hairs above. The eyes 

 are rather long and dense pilose and meet below the antennae. 

 Erichson in his description of the genus, noted that by close obser- 

 vation a small line-like space was seen between the eyes in the 

 whole length from the vertex to the face. In the known species 

 from North America there are two ocelli on the vertex, placed on 

 the front rim of a rather broad tubercle. The thorax and abdo- 

 men are thickly and finely, almost silky haired. Humeral cal- 

 losities large. Scutellum short. A])domen rather short and 

 broad, but not greatly swollen as in some genera. In the female 



TRANS. AM. ENT. SOC, XLV. 



