216 long's second expedition. 



sericeous, witli ochreous tibiae and tips of the thighs ; posterior pair 

 black, sericeous, tibiae ochreous at base. 



Length one-fourth to nearly three-tenths of an inch. 



Very like the snlcatus Jurine, but is much larger ; it differs 

 from Ichneumon oculator Fabr., by being immaculate, and from 

 Cryptus irrorator Fabr., by the oval form of its abdomen. 



2. S. BASILARTS. — Black ; base of the antennae and feet pale 

 yellowish. 



Inhabits Pennsylvania. 



Head punctured; antennae, first and second joints pale yellow- 

 ish ; mandibles yellowish ; palpi white ; thorax punctured ; scu- 

 tel, metathorax, and tergum at base longitudinally wrinkled ; 

 wings hyaline, pale yellowish at base ; nervures fuscous ; feet 

 pale yellowish, tips of the tarsi dusky. 



Length nearly one-fifth of an inch. 



This species is in the collection of Mr. William W. Wood. It 

 is much smaller than the preceding species and readily distin- 

 guished by the color of the basal joints of the antennae and of the 

 feet. 



BEACON Jur. 



1. B. TIBIATOR. — Black ; wings fuscous at tip. 

 Inhabits Pennsylvania. 



9 Wings hyaline, nervures robust, fuscous ; tip including the 

 extremity of the second submarginal cellule, fuscous ; feet, ante- 

 rior pair of tibiaa and tarsi yellowish-white ; intermediate tarsi 

 whitish ; posterior pairs of tibias white at base. 



Length of the body one-fifth of an inch. [323] 



2. B. POPULATOR. — Black ; abdomen red ; wings dark fuli- 

 ginous. 



Inhabits United States. 



% 9 Metathorax rough, with confluent punctures ; abdomen en- 

 tirely reddish-fulvous ; oviduct black, longer than the abdomen. 



Length of the body two-fifths of an inch. 



A very common insect in many parts of the LTnited States. 

 The head and stethidium are sometimes dark piceous with the 

 anterior portion of the thorax black. It resembles B. initiator 

 Fabr. 



