MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 413 



Abdomen oblong-oval, in $ showing 7 segments; the petiole short, 

 woolly; the second segment occnpying nearly the whole snrface; in S 

 8-segmented, the petiole longer. 



Legs moderate, the femora and tibiiii clavate, the tibial spurs weak, 

 the basal joint of hind tarsi fully twice as long as the second, in the S 

 somewhat shorter. 



This genus was originally confused with Dicqrria, but is at once distin- 

 guished from it and closely allied genera by the frontal impression, 

 the shape of the scutellum, and the distinct basal nervure. In the 

 shape of the head the female, in many species, recalls somewhat Oale- 

 su.s, but the wings and antennte are quite different. 



Our species may be distinguished by the following table: 



TABLE OF SPECIES. 



FEMALES. 



Wingless or siibapterous forms 3 



Winged. 



Frous superiorly not augulated in front of the eyes 2 



Frons superiorly augnlatcd in front of the eyes. 

 AntenniP and legs reddish-yellow or rufous; the club abrupt, 3-jointed, black. 

 Fovea of scutellum small, rounded, not reaching entirely across the base. 



Metathorax and i)etiole yellowish L. Columbiana, sp. nov. 



Metathorax and petiole black L. ruficornis, sp nov. 



2. Scutellum with a single fovea at base. 



AntenniB and legs rufous, the club abrupt, 3-jointed. 

 Fovea of scutellum largo, transverse, deep, extending entirely across the l)a8e, 



the lateral grooves entire L. abrutta, Thorns. 



Fovea of scutellum small, rouuded, shallow, not extending entirely across 



the base, the lateral grooves obliterated basally. 



L. CALIFORNICA, Sp. UOV. 



Scutellum with two small continent fove;c at base. 

 Antenme and legs yellow, the club abrujit, 3-jointed. 

 Second funiclar joint much shorter than the tirst L. FLAVlPES,8p. nov. 



3. Wings deformed, not extending more than two-thirds the length of abdomen. 



Head and abdomen black, thorax rufous. 

 Antenn;e and legs yellow, the club abrupt, 3-jointed, black.. L. nana, sp. nov. 

 Apterous. 



Entirely black. 

 Antenn;B and legs rufous, the club abrupt, 3-jointed, black. 



Scutellum Avith a small rouuded fovea (L. californica. ) 



Antenuie and legs rufo-i)iceous, the antenna gradually clavate. 

 Scutellum with a small, shallow fovea L. PEZoMACHCtn^ES, Ashm. 



Loxotropa Columbiana, sp. nov. 



9. Length, 1.5""'". Polished black, impunctured; antenna?, except 

 the large, abrupt, 3-joiuted club, the legs, apex of metathorax, and pet- 

 iole, reddish-yellow. Wings hyaline, pubescent, the stigma piceous, the 

 submarginal and basal nervures pale yellowish. The antennte are 

 12-jointed, reaching to the base of the abdomen; scape as long as the 



