AMERICAN HYMENOPTERA. 371 



Segment 5 usually with white fascia, 6-7 black ; scutel and patch on meso- 

 notum usually blackish ; tegulai usually black, more or less testaceous 

 posteriorly; apical margins of segments sometimes pale testaceous; 

 tarsi and apex of tibia testaceous; joint 3 about twice as long as 2; 

 12-14 mm. variabilis. 



10. Apical margins of segments broadly pale testaceous; wings clear; nervures 



pale; tegulai piceous; clypeus, labium and base of mandibles marked 



with yellow ; flagellum fulvous, a little darker above 12. 



Apical margins of segments black or dull testaceous; wings less clear; ner- 

 vures usually dark ; flagellum fulvous beneath, blackish above- • • 11. 



11. Pubescence fulvous, not mixed with black on niesonotum or scutel ; mandi- 



bles black at base; middle of labrum yellow; clypeus yellow; nip. 



usually 3; tegulas testaceous trinotlis. 



Pubescence cinereous, mixed with black on scutel and mesonotum ; nip. usu- 

 ally 4; tegulse piceous; clypeus white; labrum with white stripe; 

 nervures dark veruoniana. 



12. Pubescence pale ochraceous to fulvous ; labrum yellow agilis. 



Pubescence white ; middle of labrum yellow nivea. 



EMPHORID.E. 



Females. 



Cell III nearly equals IIJ4 + His ; vein IV3 near middle of cell Ills ; no pul- 

 villi ; head, thorax and sides of segment 1 with pale ochraceous pubes- 

 cence; mp. 3 ciliate; paraglossse setiform, a little longer than Ip. 1; 

 lp. 22 : 18 ; 13-17 mm. ; Emphor bombiformis in Empliori n«. 



Cell III about equals III4 ; Ills short, vein IV3 near its end; pulvilli present; 

 pubescence pale and mixed with black on head and thorax above; 

 segments 2-4 with white pubescent fasciae ; elsewhere the pubescence 

 black; mp. 3-4 ciliate, 6 minute; paraglossse shorter than lp. 7 ; lp. 

 18 : 51 ; 11-14 mm : Entechnia taurea in. Eutechniiua*. 



Pulvilli absent; abdomen not fasciate; 14-17 mm.; Emphor bombiformis in 



Emphorinse. 



Pulvilli present ; segments 2-6 with white pubescent fasciae ; 9-13 mm. ; Entechnia 



taurea in Entechniiiire. 



ANTHOPHORID.E. 



Females. 



Apex of cell IIIi -f" 2 on costa; cell III4 narrower above; vein IV3 a little be- 

 fore Ills; a before V2 ; mandibles with an internal tooth; joint 3 

 longer than 4-5; pubescence above on thorax and base of abdomen 

 ochraceous, elsewhere black; tibial scopa copious; mp. 2 twice as long 

 as 1 ; lp. 28 : 8 ; 15 mm. ; floridana in Eniphoropsis. 



Apex of cell IIIi -+- 2 more remote from costa, appendiculate ; cell III4 not nar- 

 rowed above; vein IV3 near middle of cell Ills; about opposite 

 V2 ; scopa rather scanty 1. 



TRANS. AM. KNT. SOC. XXXI. OCTOBER, 1905. 



