MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 261 



Face with no ftue strife toward hase of anteunfe, finely, closely punctate; 

 antennas brown-black, the scape black ( <? ). 



* A. MEI-ANOSTKOPHA AsllIU. 



2. Legs yellow. 



Scape, })e(liccl and first fuuiclar joint yellow, rest of tbe anteniup fnscoiis or 

 brown A. CARYJi Ashm. 



Acerota cecidom3riaB, sp. nov. 



$. Length, 2""". Black, closelj' punctulate, subopaque; thorax 

 with distinct parapsidal furrows, the middle lobe posteriorly with a 

 delicate longitudinal carina and some irregular raised lines on either 

 side; scutellum closely punctate, acutely rimmed posteriorly. An- 

 tennae 10-jointed, black, the Hagellum twice as long as the scape; 

 pedicel not longer than the first funiclar joint, second fnuiclar joint 

 slightly longer than the first, third, smaller and not so thick; club 5- 

 jointed, the joints, except the last, almost equal, the first being slightly 

 the smallest, the last conical, slightly more than twice as long as the 

 penultimate. Metapleura covered tvith a sparse whitish pubescence. 

 Legs brown-black, the <'OXie black, Teguhe black. Wings hyaline, 

 not fringed and scarcely pubescent, the submargiual vein brown, its 

 knob piceous. Abdomen long-oval, very slightly longer than the 

 thorax, polished, first segment as long as wide, striated, with a trans- 

 verse depression at the middle. 



Habitat. — Lancaster, Los Angeles County, Cal. 



Types in National Museum. 



Bred by A. Koebele, August, IS )7, from a Cecidomyiid gall on Ephe- 

 dra californica. 



Acerota floridana Ashm. 

 Can. Ent., xix, p. 128; Cress. Syn. Hym., p. 249. 



9. Length, 2'""\ Subrobust, black, subopaque; the head and tho- 

 rax closely microscopically punctulate ; abdomen highly polished, the 

 first segment wider than long, striated. Head transverse, the vertex 

 broad, the ocelli in a slightly curved line, the lateral ocelli about their 

 width from the eye margin. Antennae dark brown; pedicel longer 

 than the first and second funiclar joints together; second funiclar 

 joint not wider than long, a little shorter than the first; third trans 

 verse and wider than the second ; club joints stouter, wider than long. 

 Thorax with distinct parai)sidal furrows, subopacjue, microscopically 

 punctate; scutellum convex with a raised margin jmsteriorly ; angles 

 of metathorax prominent, densely covered with a silvery white pubes- 

 cence, as well as the metapleura. Wings hyaline. Legs dull rufous, 

 the coxa; black, the femora fuscous. 



Habitat.— Jacksonville, Fla. 



Types in Coll. Ashmead. 



