12 ENTOMOLOGICAL SOCIETY 



femora fuscous or blackish; wings hyaline with tips and a band across 

 wing just beneath marginal vein, fuscous. 



Type, No. 3460, U. S. N. M. 



Hab. Santa Cruz Mts. and Los Angeles, Cal. This species 

 is dedicated to my friend, the distinguished Dipterist D. W. 

 Coquillett, who reared a single specimen at Los Angeles, Cal., 

 from a Cerambycid larva, Oeme gr acilis Lee. 



(3) Ratzeburgia hubbardii n. sp. 



Female. Length 4 to 5 mm. Head and thorax metallic brown-black, 

 the face duller and sometimes blue-black, the abdomen very long, acuminate, 

 bronzed green, the whole body sparsely clothed with a sparse whitish 

 pubescence; legs aeneous black or fusco-aeneous, the extreme tips of an 

 terior tibiae, their tarsi, middle legs except coxae and tips of hind tibiae 

 and their tarsi brownish-yellow. Wings clear hyaline. 



Type, No. 3461, U. S. N. M. 



Hab. Crescent City, Fla. ; District of Columbia. 



Described from many specimens and dedicated to my friend 

 Henry G. Hubbard, who bred it in numbers from the larva of a 

 Coleopteron, Leptostylus biustus Lee., boring in orange trees. 



(4) Ratzeburgia hyalinipennis sp. n. 



Female, Length 5 mm. Closely allied to R. hnbbardii but the head 

 is bronzed green, the abdomen not so acuminate at tip, the pubescence 

 being more distinctly confined to the abdomen and exceedingly fine or 

 microscopic, while the legs are nearly wholly ferruginous with sometimes 

 only the coxae and anterior femora aeneous, although in one specimen all 

 the tibiae have a more or less distinct fuscous streak on their outer face. 

 Wings clear, hyaline. 



Type', No. 3462, U. S. N. M. 



Hab. Santa Cruz Mts., Cal. (Albert Kcrbelc.) 



(8) CALOSOTER Walker. 



(i) Calosoter longiventris sp. n. 



Female. Length 6.5 mm. Dull bronzed green; scape aeneous, the 

 flagellum black ; legs, except coxae, fuscous ; sutures of trochanters, knees, 

 tips of tibiae and all tarsi brownish-yellow. Wings hyaline, teguhe and 

 veins brown, the postmarginal vein a little longer than the stigmal. Ab 

 domen very acuminate, compressed, 25 times as long as the head and 

 thorax united, the terminal segment forming a long slender stylus. 



Male. Length 3 mm. Agrees with the female in color except the legs 

 are aeneous, with only the knees, extreme tips of tibiae and the tarsi fer 

 ruginous; and in structure, except the abdomen is depressed, oblong and 

 scarcely longer than the thorax. 



