No. 22.] HYMENOPTERA OF CONNECTICUT. 509 



Male: smaller than female; partly brilliant metallic green, 

 with faint blue and purple reflections ; head bright green, antennae 

 black ; thorax above either bright metallic or coppery green, with 

 purple reflections, metathorax more bluish; all femora dusky, 

 with a faint bluish reflection, trochanters rufous, coxae steel-blue, 

 front and middle tibiae white, hind tibiae dusky, all tarsi white, 

 with the apical joint occasionally dusky; wings hyaline, stigmal 

 vein faint ; abdomen dark metallic blue. 



Arachnophaga Ashmead. 



°A. picea Riley. 



Female: length 3.1 mm.; mostly aeneous black, with bronzy 

 and metallic reflections; lower part of face and cheeks metallic 

 green, anterior edge of clypeus and the mandibles ferruginous, 

 palpi blackish, scape pale ferruginous ; trochanters, anterior and 

 mid femora, tibiae and tarsi beneath, and posterior femora at tip, 

 ferruginous, posterior femora and posterior coxae with a metallic 

 aeneous tinge, the latter with some silvery hairs, rest of legs 

 blackish; wings hyaline, with a fuliginous blotch below the mar- 

 ginal vein ; tegulae dull fuscous, mesopleurae blue-black ; abdomen 

 ovate, truncate behind, flat above, convex beneath, ovipositor 

 nearly one-third the length of the body. 



Male: body 2.1 mm. long; colored like the female except as 

 follows: legs not ferruginous beneath, mid and posterior tarsi 

 white, wings clear hyaline throughout, with the veins pallid. 



Bred from the eggs of a spider {Epeira glohosa). 



Eusandalum Ratzeburg. 

 Ratseburgia Foerster. 

 °E. amphicerovorum Ashmead. Kansas State Agricultural 

 College, Experiment Station, Bull. 3, 1888, Fig. 3. 



Male: length nearly 8 mm.; head purple and gold, antennae 

 black, with aeneous tinges; thorax mostly metallic brown, pro- 

 thorax at sides and the metathorax blue ; legs reddish yellow, with 

 the hind coxae purplish; abdomen metallic brown with a brassy 

 spot at base. 



Bred from Amphicerus bicaudatus. 



