94 TJ. S. NATIONAL MUSEUM BULLETIN 216 part 3 



3. Punctures on lateral lobe of mesoscutum moderately coarse. 



2. strigosa (Cresson) 

 Punctures on lateral lobe of mesoscutum very fine and weak. 



4. laevis, new species 



FEMALES 



1. Punctures of mesoscutum and mesopleurum very fine and rather sparse, 



separated by several times their diameter; upper edge of lower valve of 

 ovipositor enclosing the lower part of upper valve (fig. 328,e) 



4. laevis, new species 

 Punctures of mesoscutum and mesopleurum moderately coarse and close, 

 separated by less than their diameter; upper edge of lower valve of ovi- 

 positor not enclosing the upper valve (figs. 328, b, c, and d) 2 



2. Frons and vertex fuscous medially, white laterally; hind half of lateral lobe 



of mesoscutum sparsely punctate; scutellum and lower margin of pronotum 

 white; front wing without a median brown area . . 3. frontalis, new species 

 Frons and vertex fulvous; hind half of lateral lobe of mesoscutum rather 

 densely punctate; scutellum and lower margin of pronotum fulvous; front 

 wing usually with a median brown area 3 



3. Ovipositor moderately compressed, about 3.7 as long from nodus to tip as 



it is deep at nodus (fig. 328,b) ; edges of median brown spot on front wing 



indistinct, the spot sometimes lacking 1. agenioides Viereck 



Ovipositor strongly compressed, about 2.6 as long from nodus to tip as it 

 is deep at nodus (fig. 328, c); edges of median brown spot on front wing 

 sharply defined 2. strigosa (Cresson) 



1. Mallochia agenioides Viereck 



Figures 328,b; 331, a 



Mallochia agenioides Viereck, 1912, Proc. U.S. Nat. Mus., vol. 43, p. 591; ?. 

 Type: ?, Glencarlyn, Va. (Washington). 



Front wing 3.8 to 5.3 mm. long; pmictures on mesoscutum rather 

 coarse, separated by about 0.4 their diameter, posteriorly perceptibly 

 sparser but still rather close; punctures on mesopleurum coarse, sepa- 

 rated by about 0.7 their diameter in male, by about 0.4 their diameter 

 in female; ovipositor tip as in figure 328, b. 



Male : Head and body marked with black, pale yellow, and fulvous 

 about as in figure 331, a; palpi pale yellow, darkened apically; scape 

 and pedicel pale brown, fuscous above; fiagellum black; front and 

 middle legs fulvous, the front coxa and trochanters and front side of 

 middle coxa yellow, their tarsi fuscous apically; hind coxa, trochan- 

 ters, femur, and tibia fulvous, the apex of tibia a little darkened; 

 hind tarsus fuscous, usually all of the third segment, usually part or 

 all of the second segment, and sometimes apex of first segment and 

 base of fourth segment, white; wings subhyaline, the apical part of 

 front wing faintly brownish. 



Female: Fulvous. Fiagellum fuscous, fulvous basally, with an 

 incomplete white band that covers about four segments; wings faintly 



