TRYPHONIDES. 31 1. 



TEWASSERIM : Mergui (W. Doherty, type); CEYLON: Kandy, 

 vii. 10 (0. S. Wickwar}. 



Type in the Indian Museum. 



The economy of this remarkable insect should prove peculiar and 

 interesting, in connection -with such remarkable organs of touch. 



Tribe TRYPHONIDES. 



Recent authors have subdivided this division, regarded by 

 Holmgren as of equal rank with the METOPIIDES (his ASPIDOPI), 

 BASSIDES (his SCHIZODO^TI) and EXOCHIDES (his PROSOPI), into 

 sections which they consider as distinct from each other as from 

 Holmgren's other sections ; bat this I think incorrect. The 

 whole conformation of the above four great divisions is so 

 dissimilar that they are distinguishable at a glance, whereas the 

 distinction between the MESOLEPTINI and TRYPHONINI is no more 

 than the comparative sessility of the abdomen, and a distinct line 

 cannot be drawn in this respect; these two differ from the 

 CTENOPELMINI solely in the absence of tarsal pectination ; and all 

 three are nearly indistinguishable from the CTENISCINI, excepting 

 in the conformation of their calcaria ; they have a common 

 facies, and all, I believe, prey upon Sawflies. Hence I prefer to 

 retain them under a common head, H.OMALOPI or TRYPnosriDES. 



Table of Genera. 



1 (30) Head not apically constricted ; wings 



of normal breadth. 



2 (21) Tarsal claws simple, not pectinate 



beneath. 



3 (12) Abdomen with basal segment more or 



less distinctly petiolate (MESOLEP- 

 TINI). 



4 (5) Scutellum margined ; abdominal seg- [p. 312. 



ments large, apical hidden CRYPTODEMA, gen. nov., 



5 (4) Scutellum not margined ; abdominal 



segments normal. 



G (7) Head discally quadrate and pos- [p. 314. 



teriorly as long as eyes PERILISSUS, Holmg., 



7 (6) Head discally transverse and pos- 



teriorly shorter than eyes. 



8 (9) Areolet wanting ; subinarginal ner- 



vure incrassate TILGIDA, Cam., p. 317. 



9 (8) Areolet entire ; submarginal nervures 



not incraasate. 



10 (11) Clypeus not discrete, nor antennae [p. 319. 



pale-banded HYPOCRYPTUS, Forst., 



11 (10) Clypeus distinctly discrete ; an- [p. 320. 



tennse pale-banded EURYPROCTUS, Holmg., 



