628 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 50. 



the posterior margin. Antennal scape yellow on the inner side, 

 black on upper margin and the outer surface except at base and apex 

 and with an indistinct, median, longitudinal yellowish streak; basal 

 two-thirds of pedicel and club black, both shading into yellowish 

 at apex; first four funicle joints blackish brown, the fifth dusky at 

 base, last two joints otherwise yellow. Legs concolorous with under- 

 parts, the tip of last joint of the tarsi blackish. Exserted portion 

 of ovipositor cadmium yellow but becoming dusky at apex; wings 

 hyaline, the veins pale yellowish. 



Male. Front and vertex nearly twice as long as wide; ocelli in 

 a slightly acute-angled triangle; the posterior pair close to the eye 

 margin. Antennae much as in the female, but the first funicle joint 

 more than half as long as the second, the second, third, and fourth 

 joints subequal in length, the last two a little longer, and the club a 

 little narrower than in the female and more tapering toward the apex. 

 Length: 0.9 mm. 



Face, cheeks, and front dull orange yellow approaching cadmium 

 yellow; vertex, occiput, and upper parts of thorax and abdomen dull 

 black; collar of pronotum narrowly whitish with a black dot on each 

 corner uniting below with the black of the concealed portion; mesor 

 scutum slightly yellowish on each side close to the tegulae; togulae 

 pale yellowish with then* posterior margin brown; under side of tho- 

 rax cadmium yellow, the venter of abdomen blackish brown. Anten- 

 nal scape brown on the upper side, yellowish below; pedicel brown 

 with apex yellowish; funicle and club nearly uniformly brown. Legs 

 and wings as in the female. 



Redescribed from nineteen females, five males (cotypes) reared 

 from Ceroplastes species, Mexico City, Mexico (C. H. T.Townsend), and 

 two females (cotypes) reared from Ceroplastes cirripediformis Corn- 

 stock, Baton Rouge, Louisiana, December 25, 1897 (H. A. Morgan). 

 In reference to the name and larger series Mexico City should be con- 

 sidered the type locality. 



Type. Cat. No. 5050, U.S.N.M. 



30. APHYCUS ERUPTOR Howard. 



Figs. 31, 50. 



Aphycus eruptor HOWARD, Rep. Ent., U. S. Dept. Agric., 1881, p. 364, pi. 23, 

 fig. 5. 



Female.- Front and vertex about two and one-half times longer 

 than wide; ocelli in an acute-angled triangle, the posterior pair about 

 one-half their own diameter from the eye margin; antennal scrobes 

 rather shallow and broad; eyes with a very fine, sparse pubescence. 

 Antennal scape flattened below but not expanded, about five times 

 longer than wide ; pedicel as long as the first two and one-half of the 

 third funicle joint; first funicle joint small and roundish, a little wider 



