OF WASHINGTON. 
43 
appendix erects seven new genera, describing the venation and 
genitalic characters of each. The venational characters seem 
to be of an indefinite nature, and we might as well frankly re- 
gard the genera as founded on the genitalia alone. These cer- 
tainly show well marked and distinctive characters. I have 
received from Dr. Felt photographs of many of his slides and 
have had others prepared by the kindness of Mr. H. S. Barber. 
It is of especial interest that the genitalic groups run largely 
parallel to those defined on larval characters, in some cases con- 
FIG. 9. Male genitalia of Grabhamiacan!atorCoc\.\ a, side piece or basal 
segment of clasp; b, basal lobe of same, or claspette; c, sub- 
apical lobe of same ; d, clasp filament or terminal segment of 
clasp; e, articulated apex of same; /, harpe, basal segment; 
g, harpe, terminal segment; h, harpago; i, appendage of 8th. 
segment; j, position of the unci (they cannot be detected 
in the specimen before me). 
firming larval affinities where it had been heretofore supposed 
that these were contradicted by the adults. A case in point is 
that of Janthinosoma musicum, Culex jamaicensis and Taznio- 
rhynchus signipennis. These larvae are very peculiar and essen- 
tially alike. The adults have been considered unrelated; but 
the 'genitalia are in some respects very similar and place 
these forms close together. This leads me to conclude that the 
genitalic groupings, where reinforced by the larval ones, show 
natural divisions, and I am, therefore, in accord with Dr. Felt 
