AMERICAN HYMENOPTERA. 213 



Massacliusetts, Connecticut, New Jersey, Illinois. 



A specimen from Illinois has the mesothorax black. (Coll. Amer. 

 Ent. Soc.) 



Thi-ee specimens, May 19th, on three different plants of one of our 

 tall ferns, (Osmundi,) when taken, they feign death, folding the anten- 

 nx, as well as the legs, upon the breast. 



5. Taxonus amicus, n. sp. 



Black; mouth and trochanters v/hite; tegulse, collar and abdomen yellow- 

 ■ red. Length 0.2i. Br. wings 0.52 inch. 



9 . Black, body slender; antennoe moderate, each of the ocelli in a 

 basin, nasus emarginate, aud with labrum white; tegul;«, collar and ab- 

 domen pale reddish-yellow, apical segments brownish ; pleura and breast 

 clear piceous, base of coxae and middle of femora the same color ; apex 

 of coxae, trochanters, both ends of femora and base of tibiiie, white, re- 

 mainder of tibine aud of all the tarsi piceous; wings hyaline, faintly 

 clouded. 



% . The male has the anterior angle, thorax above and abdomen, 

 excepjs a rufous band on the second, third and fourth segments, black ; 

 pleura and pectus piceous-brown ; hinder femora aud tibiae, black; 

 basal third of tibiae whitish. 



Canada. (Coll. Amer. Ent. Soc.) One 9 , one % . 



This may be a variety of T. duhitatus. 



6. Taxonus albido-pictus, n. sp. 



Black, the abdomen of female banded with rufous, the collar, the hinder ti- 

 bia and first tarsal joint banded with white. Length 9 0.32, '^ 0.25. Br. wings 

 0.56 aud 0.46 in. 



9 . — Shining black, polished. Antennas two-thirdg the length of 

 body, slender, third and fourth joints of equal length. Nasus slightly 

 incurved and with the labrum white; palpi tinged with rufous, teguhe 

 and collar white; the lower half of pleura, the pectus, the apex of the 

 first, the second and basal half of third segments of same color, their 

 trochanters, the base of tibiae and basal half of first tarsal joint pure 

 white ; apical joints of the four anterior tarsi blackish, the apex of their 

 tibias obscure, the intermediate tibia) obscure above, apex of hinder fe- 

 mora and the remainder of their tibiic and tarsi black. Wings hyaline, 

 faintly clouded. 



% . — Resembles female. Abdomen slender and flattened. 



S Var. — Antennae shorter, basal joint stouter, the abdomen wholly 

 black, the hinder tibiae beneath rufous. 



Illinois (B. D. Walsh), Virginia, (Coll. Am. Ent. Soc.) 



TRANS. AMER. ENT. SOC. (28) OCTOBER, 1868. 



