BY FREDERICK A. A. SKUSE. 
1133 
cell far beyond the middle of the first longitudinal vein. Inner 
marginal cell much lengthened. Fork of the third longitudinal 
vein with a moderately long petiole. Base of the second posterior 
cell lying before the base of the third sub-marginal cell, with 
T. hirta (a European species) situated far under the base of the 
inner marginal cell. Surface of the wing microscopically 
pubescent. 
SECTION III. 
Sub-section VII.— MY CETOPHILIN^. 
A. Three ocelli on the front. 
Genus 22. Syntemna, Winn. 
Costal vein extending beyond the tip of the second longitudinal 
vein. Auxiliary vein large, broken off at the sub costal cross- 
vein. Basal portion of the second longitudinal vein and the 
marginal cross-vein equally long. Inner marginal cell short, extend- 
ing somewhat beyond the root of the third longitudinal vein. 
Fork of the third longitudinal vein with a tolerably long petiole. 
Base of the second posterior cell situated before the base of the 
second sub-marginal cell. Surface of the wing hairy. Abdomen 
wiih seven segments. 
Genus 23. Leptomorphus, Curt. 
Costal vein scarcely extending beyond the tip of the second longi- 
tudinal vein. Auxiliary vein large, ending in the costa almost at 
the middle of the anterior border, united to the first longitudinal 
vein by the sub-costal cross-vein, which latter stands a little 
before the apex. The basal portion of the second longitudinal 
^'ein about double the length of the marginal cross-vein. Inner 
marginal cell short, extending a little beyond the root of the third 
longitudinal vein. Fork of the third longitudinal vein with a 
moderately long petiole. Ba.se of the second posterior cell lying 
almost under the root of the .second longitudinal vein. Hiirface 
of the wing apparently with a moderately di.stinct pubescence. 
Abdomen with sev^en segments. 
