150 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 5rt. 



little darker, with more green on the frontovertex, the front femora 

 brownish, and the venter of abdomen more nearly black. The 

 males in both series generally paler, with the j^ellowish brov.n ground 

 color of head more evident, and the middle femora more yellowish, 

 but the venter of abdomen darker or blacldsh. Length of female, 

 1.38 to 1.79; length of male, 1.14 to 1.48 mm. 



Series 6. Eight females, six males reared from larva of C'oleomegilla 

 or collected on rubbish among oats, Brownsville, Texas, March to 

 April, 1914 and 1915 (R. A. Vickery and P. H. Timberlake). Sim- 

 ilar to series 3, but the head with a strong bronzy yellowish to dis- 

 tmctly greenish luster, strongest on the vertex; the underparts 

 of thorax a little brighter or generally more nearly raw sienna (R.) 

 and usually without a metallic luster, although shiny; the venter 

 of abdomen brownish black with a bronzy or bluish luster; front and 

 middle femora concolorous with the pleura, the middle pair v/ithout 

 a basal annulus, front and middle coxae brownish with a purplish 

 luster, and the last two joints of middle tarsi blackish instead of the 

 apical one only. First funicle joint about a third longer than thick; 

 the postmarginal vein about three-fourths as long as the stigmal. 

 Tjength of female, 1.58 to 1.96; length of male, 1.40 to 1.81 mm. 



Series 7. Two females reared from a Coleomegilla larva, Browns- 

 ville, Texas, June 10, 1915 (M. M. High). Like the preceding series 

 but brighter in color, the head and underparts of thorax raw sienna 

 (R.) with a slight greenish luster on the vertex only; venter of abdo- 

 men antique brown (R.), suffused with raw umber (R.) medially and 

 toward the base; the front coxae and femora concolorous with the 

 pleura, the middle femora concolorous and with a pale yellowish 

 annulus near the base; the middle and hind coxae and hind femora 

 about antique brown. Postmargmal vein about as long as the 

 stigmal. Length, 1.90 to 1.95 mm. 



Series 8. Three females, one male reared from a ColeomegiUa larva, 

 Brownsville, Texas, August 12, 1912 (E. G. Smyth), Webster No. 

 6422. Similar to series 1, but the frontovertex with a weak greenish 

 luster, the notum of thorax blacker, with the greenish luster more 

 distinct, the underparts of thorax and of abdomen raw siennna (R.) 

 somewhat more brownish on the venter, the dorsum of abdomen 

 bluish black, the base not paler but the apex yellowish brown, and 

 the antennae and hind tibiae blacker. Length of female, 1.64 to 

 1.73; length of male, 1.40 mm. 



Series 9. Seven females, one male reared from a ColeomegiUa larva, 

 Brownsville, Texas, July 24, 1912 (E. G. vSmyth), Webster No. 6422. 

 Head Kaiser brown (R.) but more yellowish on the occiput, the 

 vertex slightly bronzy metallic; tlie underparts of the thorax and 

 abdomen raw sienna (R.), shining but hardly raetalUc; the most of 

 pronotum, the sides of mesocutum and posterior margin except 



