530 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



NOMENCLATURE OF WING PARTS IN THE DRAWING OF 

 SERPHUS CAUDATUS. 



OLD SYSTEM 



COMSTOCK-NEEDHAM SYSTEM 



Veins 



Veins 



Basal .... 



M and m-cu 



Cubital .... 



Media and at wing margin R*** 





+ Mt 



Transverse Cubital . 



Rs and r-m 



Recurrent . . 



M.*. 



Cells Cells 



First submarginal . . . ist Ri + R 

 Fused cells beyond ist sub- 

 marginal .... Rs+M 



Marginal (reduced to a minute 

 area beyond the stigma) . 2d Ri+R« 



Key to Families. 



1. Trochanters with one joint; antenna with fourteen joints; 



mandibles without teeth; stigma very narrow, long 



PELECINIDJE p. 576 

 Trochanters with two joints, or stigma very short and broad 2 



2. Antennae inserted into middle of face 3 



Antennae inserted below middle of face at junction of clyp- 



eus with face .' 5 



3. Wings present 4 



Wings wanting 10 



4. * Front wings with a more or less distinct stigma 12 



Front wings never with a more or less distinct stigma 11 



5. Wings present 8 



Wings wanting 6 



6. Abdomen with sides acute or margined 7 



Abdomen with sides rounded CERAPHRONIDvE p. 557 



7. Labial palpi with one joint .PLATYGASTRID^ p. 531 



Labial palpi with two or more joints SCELIONID^ p. 541 



8. Abdomen with sides acute or margined 9 



Abdomen with sides rounded; antennae in female with ten 



or eleven joints, in male with eleven joints 



CERAPHRONIDiE p. 557 



9. Antennae with ten, eight, or nine joints; no marginal or 



stigmal vein PLATYGASTRID^ p. 531 



Antennae with twelve, eleven, or seven joints (rarely with 

 ten joints, in which case either the wings bear a large 

 stigma and the entire abdomen is longitudinally striated, 



or the marginal and stigmal veins are present) 



SCELIONIDJE p. 541 

 10. Labial palpi with two joints DIAPRIID^ p. 561 



