390 NEW YORK STATE MUSEUM 
c Mesonotum yellowish and slaty brown; the distal portion of the 
stem of the 5th antennal segment with a length 2%4 times its — 
diameter, slightly expanded apically; the basal clasp segment 
Soule, capeniney Slhielhy, IAM OM TERN .oscococonovcccsc0000cd 
Dulivense Hele Ca zomree 
cc Mesonotum sooty yellow; the distal portion of the stem of the 
Sth antennal segment with a length %4 greater than its diameter, 
slightly expanded apically; basal clasp segment stout, broadly 
rounded apicallya Makenvonmbasswoodesdhliannesrs ane een 
ADICHAIRS TW So, C 82 
ccc Mesonotum dark brown; the distal portion of the stem of the 5th 
antennal segment with a length twice its diameter, greatly ex- 
panded distally; the basal clasp segment short, broad, tapering 
strongly. Taken on skunk cabbage, Symplocarpus............. 
RO@Led Mh Gon, (G aa, 2 
bb The basal portion of the stem of the 5th antennal segment with a 
length % greater than its diameter 
c Mesonotum reddish brown; the distal portion of the stem of 
the 5th antennal segment with a length 3 times its diameter; 
the basal clasp segment short, stout and tapering strongly. 
Dalen om Sherine CalobAae, SyaTnyDOCAROEGs oo 000cc0c0c00000K0000¢ 
SYVMDNOCARIDN mM Sd. Co 2 
aa Abdomen yellowish red 
b Mesonotum dark brown; the basal portion of the stem of the 5th 
antennal segment with a length only % its diameter; the basal 
clasp segment short, stout and roundly tapering distally. Taken 
OM FERNY cece ee eee eee COMBO Diedinea REG, C, Gr 
aaa Abdomen light brown; the basal portion of the stem of the 5th antennal 
segment with a length % its diameter 
b Mesonotum dark brown; basal clasp segment very short, stout and 
roundly tapering apically. Taken on basswood..tiliae Felt, C. 25 
bb Mesonotum light brown; the basal clasp segment very short and 
Sout, “Welken Gn SCs ccccccoccccsce00000 CARICIS wy Sd, CG, 
aaaa Abdomen reddish brown 
b Mesonotum yellowish brown; the basal portion of the stem of the 5th 
— antennal segment with a length % its diameter; the basal clasp seg- 
ment short, stout and narrowly rounded apically. Swept from pine 
AMGOMIMNAING MW Go» C, 16 
CONTARINIA Rond. 
This genus, as at present limited, may be recognized by the nearly 
equal nodes of the male antennae each with but one circumfilum. 
The wings are rather long and narrow, the length usually being 
twice that of the width [pl. 37, fig. 6]. The claws are simple and 
the basal clasp segment of the male lacking the conspicuous sub- 
triangular apical process so characteristic of Dentifibula. 
