402 ACADEMY OF NATURAL SCIENCES 



Of the male I have but one specimen, which is of a greenish- 

 yellow color, with the sutures and abdominal spots contrasting 

 strikingly with it. 



Dr. Harris sent me a specimen for examination. 



[Synonyms, L. maculiventris Ramb. Neuropt. 87. 9 L. coeru- 

 lans Ramb. ibid. 64.— Uhler.] 



17. L. OBSOLETA. — Wings with a submarginal series of six or 

 eight brown spots. 



Inhabits Indiana and Massachusetts. 



Body dusky ; wings hyaline ; anterior marginal and submar- 

 "■inal longitudinal nervures dull yellowish : anterior wings with 

 a submarginal series of [29] small brownish spots from the base 

 to the middle, the latter spot largest, transverse, and reaching 

 the anterior edge ; posterior wings with six corresponding sub- 

 marginal spots ; a fuscous spot at the anal base of each wing ; 

 anal membrane black, with its basal half white ; stigma dull yel- 

 lowish ; abdomen with the incisures black, a dorsal and lateral 

 carinated line ; feet with black spines. 



Length about one inch and three-fifths. 



The pleura and base of the abdomen are somewhat marked 

 with brighter yellow. The brown spots of the anal base and the 

 submarginal spots of the wings, are sometimes obsolete, or alto- 

 gether wanting anal appendices S arcuated, unarmed ; inferior 

 process a little curved upward, over three-fourths the length of 

 the superior pair. 



A female specimen sent me for examination by Dr. Harris 

 has the spots of the anal base of the wings more obvious. 



[Synonym L. polysticta Burm. Handb. 2, 856 ; belongs to Co)'- 

 dulia Leach. — Uhler.] 



18. L. EXUSTA. — Wings with a fuscous spot at base ; anal 

 processes subequal. 



Inhabits Massachusetts. 



Z Body yellowish-brown, covered with a cinereous pubescence ; 

 a black line between the antennae ; eyes in contact by a small 

 portion of their superior curvature ; thorax above pale brownish 

 with a yellowish-green vitta from the anterior wings forward ; 

 wings hyaline, very slightly tinted with yellowish; costal cellules, 

 between the middle of the wing and the stigma, about twelve or 



[Vol. VIII. 



