AMERICAN HYMENOPTERA. 279 



27. M. goniphorus. 



AUantus gonijihorus, Say, Bost. Jour, i, 183.5, 215, 2. 

 JTorton, Bost. Jour, vii, 24.3, 14. 

 Macrophya gonijihorus, Norton, Bost. Proc. ix, 118. 

 Black ; abdomen rufous ; base of antennse, mi>uth, collar, V-spot, scutel and 

 sjjot on pleura yellow. Length 0.30. Br. wings 0.66 inch. 



9 % . Short, abdomen cylindrical ; head and thorax Llat-k ; aiiten- 

 na3 longer than to base of thorax, enlarged in middle, the two basal 

 joints yellow, with a black spot on upper side of each ; head as wide as 

 thorax; nasus deeply arcuate; labrum produced, truncate, both pale 

 yellow; tegulae, collar, V-spot, scutel, post-scutel, stripe on pleura and 

 spot above, pale yellow ; basal plates and abdomen rufous ; the four 

 anterior legs yellow, with a black line above; the hinder coxae, except 

 a black spot above, trochanters, a small oblique spot in middle of tibia) 

 and the tarsi yellow, their femora, tibia) and basal half of first tarsal 

 joint rufous, tips of anterior tarsi fuscous, claws apparently bifid ; wings 

 hyaline, norvures black, stigma and costa red-yellow; lanceolate cell 

 closed. 



Connecticut, Pennsylvania, Indiana. (Say.) 



28. M. trosulus. 



Allaniu.s trosulus, Say, MS. Harris' Cat. 



Norton, Bost. Jour, vii, 1860, 244, 18. 

 Macrophya trosulus, Norton, Bost. Proc. ix, 118. 

 Black : mouth, tegulae, collar, scutel and spot on pleura yellow,- abdomen ru- 

 fous ; the two basal segments black. Length 0.30. Br. wings 0.60 inch. 



9. Body short; abdomen short, cylindrical; antennae rather long, 

 enlarged in middle; nasus deeply incurved, labrum truncate, both yel- 

 low ; teguUTe, collar, scutel and stripe across pleura pale yellow ; the 

 basal plates and the first and second segments of abdomen black, re- 

 mainder chestnut-red; legs pale yellow, sometimes reddish, the tro- 

 chanters and spot on hinder coxae white; a black line from middle of 

 anterior tibi;u to feet; apical half of posterior femora, the tibiae, except 

 a yellow band in middle, and base of ba.sal tarsus and claws black; 

 wiugs faintly clouded toward apex; lanceolate cell closed. 

 Connecticut, Massachusetts. 



A specimen in the Harris' Collection has the abdomen wholly ru- 

 fous. 



2'J. Macrophya fumator, n. sp. 



Black ; aj)ic-al two-tliirds of abdomen rufous; wings sub-violaceous. Length 

 0.30. Br. wings 0.60 inch. 



9. Dull black; antennae stout; body stout; head wide; face sha- 

 greened below ocelli, crossed by a wavy ridge above antenna); edge of 

 nasus wide and truncate; abdomen dark rufous, its two basal segments 



