10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 79 



Cresson says that his specimen had " about 24 " antennal joints, 

 while all, the present series that have complete antennae have 27 joints. 

 This is the only apparent difference between these specimens and the 

 ori<?inal description. Cresson also states that in Capitoniiis the an- 

 tennae have only about half the number of joints. This is, of course, 

 not the case, and is due to Cresson's failure to observe that Brulle 

 stated that the antennae of his specimen were broken off at the 

 eleventh joint. 



HELCONIDEA NECYDALIDIS, new species 



Very closely related to frigidus (Cresson) and possibly within the 

 range of variation of that species, but differing from a homotype 

 (Kohwer) of that species in the National Museum in its broader 

 temples, broader abdomen, and shorter ovipositor. 



Female. — Length, 10 mm. Head behind eyes as broad as at apex, 

 the temples strongly convex, vertex and temples except medially 

 strongly punctate; frons less deeply concave than in frigidus., the 

 bounding ridges less strongly elevated just above antennae; eyes 

 slightly divergent below; face coarsely and roughly rugose, especially 

 medially where the ridges are subparallel and form several longi- 

 tudinal grooves, the middle one of which comes to an acute point at 

 the base of the frontal keel; malar space three-fifths as long as eye, 

 the furroAv broad and coarsely foveolate; clypeus little more than 

 half as long as face and only about a third as long as broad; anten- 

 nae about two-thirds as long as body, slender, basal joint of flagellum 

 three times as long as thick. Pronotum very coarsely striate in im- 

 pression, humeral angle polished and sparsely, finely punctate; meso- 

 scutum polished, prescutum sparsely punctate, notauli coarsely foveo- 

 late; scutellum polished, sparsely finely punctate, fovea and lateral 

 areas coarsely striate-foveolate ; mesopleurum polished in middle and 

 in humeral angle, the furrow between coarsely rugose, sternauli very 

 coarsely foveolate; metapleurum very coarsely reticulate-rugose 

 throughout; propodeum very coarsely reticulate with finer reticula- 

 tions within the larger areas, medially with a more or less well-defined 

 longitudinal area that comes to an acute angle basally; femoral tooth 

 subacute. Abdomen polished, first tergite more or less distinctly 

 rugose; second tergite barely as long as broad; sheath distinctly 

 shorter than hodij. 



Black, M'ith legs and abdomen ferruginous; scape, clypeus, and 

 mandibles ferruginous; palpi infuscate stramineous; tarsi paler than 

 tibiae, hind tibia blackish, especially above; Avings dilutely infuraate, 

 venation black ; abdomen with venter and extreme apex black. 



Male. — Essentially like female. Antennae fully as long as body. 



Host. — Necydalis laevicollis LeConte. 



Type.— U.S.N.M. No. 42900, from INIount Douglas, Vancouver 

 Island, British Columbia. 



