332 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [BuU. 



portion of ovipositor about as long as body; length 8-9 



mm.; hind metatarsus more or less fuscous extrematis 



Abdomen above in female with its basal half reddish, its 

 apical half mostly or partly black with a whitish yellow 

 mark at apex; abdomen of male above with its basal 

 joint black, remainder in color as in female; antennae 

 in both sexes with a pale annulus; legs mostly pale, hind 

 metatarsus entirely whitish, exserted portion of ovipositor 

 about as long as abdomen. Length 8-9 mm nuncius 



14. Abdomen with its first, second, and third dorsal segttients 



mostly rufous, remainder of dorsum of abdomen black 



except for a white apical spot. Length 5.5 mm 15 



Abdomen above, at base, and fifth and following segments, 

 black, the rest reddish, though in some individuals the 

 second, third, and fourth dorsal segments may be tinged 

 with blackish. Length 6-7 mm canadensis 



15. Exserted portion of ovipositor as long as abdomen alacris 



Exserted portion of ovipositor half as long as abdomen 



hyslopi 



16. Antennae with a pale annulus 17 



Antennae without a pale annulus; wings subhyaline ..americanus 



17. Legs mostly black; exserted portion of ovipositor scarcely 



one-fourth the length of body; length 9-10 mm.; fore tibiae 

 and all tarsi more or less tinged with pale rufous ....limatus 

 Legs mostly reddish; exserted portion of ovipositor about 

 half as long as abdomen; apical fourth of abdomen mostly 

 black, its apex yellowish. Length 6 mm hyslopi 



A. rufus Provancher. 



Stafford, 24 August, 1905 (W. E. B.), on flowers of goldenrod. 



A. mundus Provancher. 

 New Haven, 19 July, 1905 (B. H. W.). 

 °A. contiguus Cresson. 

 *A. (Itamoplex) lophyri Norton. 

 Parasite on (Lophyrus) Diprion abietis. 

 Type locality : Connecticut. 



A. (I.) americanus Cresson. Howard, Insect Book, PI. x, 

 Fig. 2. 



Branford, August, 1905 (H. W. W.) ; West Haven, 27 June, 

 1905 (H. L. V.) ; New Haven, 24 August, 1905 (B. H. W.) ; 22 

 June, 1910 (A. B. C.) ; 4 June, 1909 (M. Jagger) ; Stonington, 

 July, 1909 (G. H. Hollister) ; New Canaan, 27 September, 1909, 

 Prospect, 15 August, 1906 (W. E. B.). 

 *A. (I.) cressoni Viereck (new species). 



