148 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol. 56. 



series 9, described below, but the bead is said to be one-sixth longer 

 than wide, which would ally it more with the Old World forms of 

 fiaminius. It is recorded from Mendoza, Argentina. 



.1. HOMALOTYLUS TERMINALIS (Say). 



Serlion tenninalis Say, Maclur. Lye. Phil., vol. 2, 1828, p. SO. 

 Scdio terminalis Cresson, Syn. Hym. No. Amer., 1887, p. 248. 

 Homalotylus terminalis Ashmead, Proc. U. S. Nat. Mus., vol. 22, 1900, p. 378. 

 Homalotylus ohscurus Howard, Bull. 5 (Old Series), Bur. Ent., U. S. Dept. 

 Agric, 1885, p. 22. 



Female. — In structural characters similar to fiaminius, but the 

 head averages slightly wider as compared with the length, as seen 

 from the side a little thicker or fully as thick on the lower half, the 

 space between the lower corners of eyes and the antennal sockets 

 usually considerably less than the space between the lower, outer 

 corners of eyes and the occipital margin. Sculpture and pubescence 

 practically as m fiaminius. Length, 1.33 to 2 mm. 



Head and underparts of thorax brownish yellow, the head usually 

 with a bronzy, more rarely with a greenish luster, the mesopleura 

 often suffused with brown and with a metallic somewhat bluish luster; 

 notum of thorax and the abdomen black, the scutum with a distinct 

 greenish luster, the axillae and scutellum dull except when viewed 

 at a very oblique angle from in front, the metanotum, propodeum, 

 and abdomen usually with a bluish luster; or in paler variations the 

 brownish yellow coloration may extend over all parts except the hind 

 border of the pronotum, most of the mesoscutum and dorsum of ab- 

 domen ; tegulae white, the posterior half brown or blackish, or in some 

 cases nearly entirely white. Antennae dark brown or black, the club 

 yellowish white. Legs variable, in darker specimens mostly dark 

 brown or blackish with the middle femora brov.niish yellow, the tibial 

 spur and middle tarsi yellowish white ; in paler specimens only the 

 hind tibiae and tarsi brown or blackish, and the front tibiae and tarsi 

 usually pale brown. Wings banded practically as in fiaminius. 



jlfale. — Similar to the female, but with the v/ing markings less 

 distinct. Length, L14 to 1.81 mm. 



The following material has been examined: 



Series 1. Two females (cotypes of H. ohscurus How ard) reared from 

 Coccmelline larvae, probably Cycloneda, Centerville, Florida, July 

 24 (H. G. Hubbard), Hubbard's No. 46, Insectary No. 2308. Head 

 and underparts of thorax ochraceous orange (R.), the frontovertex 

 and face with a weak bronzy luster, the vertex suffused with brown, 

 the postorbital region with a greenish luster; notum of thorax black 

 with a greenish luster, the scutellum more brownish, the lateral 

 margins of pronotum and mesoscutum like underparts; abdomen 

 rather bluish black with the base brownish, the venter about antique 

 brown (R.) with a bronzy luster; antennae except club dark brown; 



