144 



not enough to identify the species with Ttirbatella. But when I 

 afterwards found out what species was intended, I at once made 

 the correction in the pages of the North American Entoviologisty 

 to which article reference should have been made in any further 

 discussion of the matter. 



In a group so difificult as the Phycidce., the decision as to what 

 are generic characters should be left to the student who has 

 worked over the largest material ; and any correction of his action, 

 to be of value, must be made from a wider knowledge of the 

 group. So far as 1 have gone, I am not prepared to reject the 

 venation as a guide to generic relations in the Phycida'. I hope, 

 however, to have an opportunity soon for studying the family 

 with augmented material, and for this purpose would be glad to 

 receive specimens from any locality. 



LARV^ OF TWO SPECIES OF EUCLEA. 



By G. H. Fren'CH, Carbondale, 111. 



E. Paenulata, Clem. In general outline somewhat ellipti- 

 cal, the sides and the back tapering from the middle to both ex- 

 tremities. Length, when full grown, .56 of an inch ; width and 

 height, in the middle, nearly .25 of an inch. These measure- 

 ments were taken when the head was withdrawn beneath the 

 second joint. The body, like others of the genus, destitute of true 

 feet, but locomotion was performed by means of a soft, pliable 

 membrane covering the ventral surface, with which the insect 

 slides over substances instead of walking. General color of dor- 

 sum, or dorsal space, dull purplish brown, having under the glass 

 a slight orange tinge. A fine dorsal line, and a broader one each 

 side, which alternately expands and contracts, of dull purplish 

 orange. On each joint, except the twelfth, is a pair of impressed 

 spots, which appear whitish when seen in certain lights. 



In the region of the sub-dorsum is an orange ridge contain- 

 ing tubercles, which are covered with spines. These tubercles are 

 of the same color as the ridge, except that between the last two 

 there is a shorter black tubercle without spines. The second and 

 third from each end of the body are larger than the others. A 

 similar tubercled ridge is found in the region of the stigmata ex- 

 cept that it does not contain any black tubercles. Sub-dorsal 

 space dull, purplish orange, bordered above and below with purp- 

 lish brown, each joint containing two whitish impressed spots 



