164 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.56. 



Head ochraceous orange (R.), the cheeks and postorbital area of 

 head with a trace of greenish luster; pronotum and mesoscutum dark 

 bro^^ii or less suffused with black especially on the middle of the scu- 

 tum, sometimes entirely brownish, or entirely blackish with a slight 

 greenish metallic luster; axillae and scutellum cadmium yellow (11.)^ 

 tegulae white with the apical margin dark gray or blackish, metano- 

 tum, propodeum, and metapleura shining brownish black; pleura and 

 under parts of thorax about concolorous with the head, the posterior 

 part of mesopleura sometimes suffused with browTiish; abdomen 

 mostly like head and pleura but more shining, the venter duslcy 

 apically and the apical half of dorsum blackish, the luster especially 

 strong on the dorsum and somewhat iridescent, ovipositor concolor- 

 ous with the apical fourth blackish. Antennae black, the scape brown- 

 ish, especially on the upper side and toward the base, the fifth funicle 

 joint changing to whitish at the apex, the sixth joint and club yel- 

 lowish white. Legs concolorous with pleura of thorax, the middle 

 coxae blackish, the hind femora most often suffused with blacldsh on 

 apical half of outer surface and along the dorsal margin of the inner 

 sm'face, the hind tibiae blackish brown; middle tibiae, especially 

 apically, the spur and the middle and hind tarsi considerably paler 

 yellow, the last joint of all tarsi dark bro^Ti or blackish. Wings 

 banded as in flaminius except as noted above. Pubescence of head 

 and thorax entirely whitish, most ' prominent on the dark colored 

 mesoscutum and pronotum, the metapleura and hind coxae densely 

 silvery white pubescent; the scutellum in addition has two short 

 black bristles on each side at the apex. 



Male. — Entirely similar to the female in structin-al and coloration 

 characters, but averaging slightly smaller in size. Length of body, 

 1.07 to L51 mm. 



Described from ten females, five males (type, allotype, paratypes 

 a-in) reared from the larvae of Hyperaspis trimaculala (Linnaeus) 

 associated with Dactylopius confusus Cockerell, on Opurdia or col- 

 lected at Dactylopius colonies on Opuntia, Bro^vnsville, Texas, Janu- 

 ary 20 to July 8, 1915 (P. H. Timberlake). 



The following material also examined; A large series collected or 

 reared with the types, January 20 to July 8, 1915; two females reared 

 July 4, 1915, from a single host of the same species, collected at San 

 Antonio, Texas, January 9; four females, one male, reared from a 

 Coccinellid larva associated with Dactylopius species (the host larva 

 probably the same as above), Guanajuato, Mexico, Insectary No. 

 5859<'a (U.S.D.A.); six females, two males, reared from Dactylojnus 

 confusus material. Point Isabel, Texas (C. H. T. Townsend), Town- 

 send No. 650; six females, two males, reared from Dactylopius 

 material, La Puerta, Tamaulipas, Mexico (C. H. T. Townsend), 



