112 GEO. H. HORN, M. D. 



and their presence in the latter, but in all the specimens of Loricera 

 I have examined the suture between the episterna and epimera are 

 quite distinct. 



Associated for a time with the Panagaeides, Loricera has been properly 

 removed by Schioedte, Schaum and Chaudoir. While it must be con- 

 sidered a member of the present sub-family allied to the Elaphrini and 

 Nebriini, it presents two striking characters at variance with all the tribes 

 of Carabinae and which approach it to the Harpalinae, the deeply emar- 

 ginate anterior tibiae and the presence of the internal elytral plica which 

 is so well marked in Pterostichini and Panagaeini. 



Tribe IX.— Nebriini. 



Antennje with four basal glabrous joints, inserted under a slight frontal plate 

 which is not extended backward over the eyes in a supra-orbital ridge. Eyes 

 round, moderately or very prominent, distant from the buccal opening beneath, 

 less however in Leistus and Notiophilus. Head horizontal (front deflexed in 

 Opisihius and with two supra-orbital setae), and with one supra-orbital seta. Parts 

 of mouth variable, mandibles always with setigerous puncture. Thorax usually 

 with a setigerous puncture at the side and hind angle, both are absent in Opisthius, 

 and the posterior in Leistus. Elytra margined at base except in Opisthius, sides 

 narrowly inflexed, margin entire. Prosternum horizontal and prolonged behind 

 the coxse, the cavities open behind; lateral suture of thorax beneath normally 

 distant from the margin except in Opisthius. Mesosternum carinate in front. 

 Metasternal epimera indistinct, posterior coxae contiguous. Legs slender, middle 

 and posterior tibise spinulose or ciliate externally. Tarsi slender, ciliate beneath. 



The parts of the mouth are so variable that I will give in brief the 

 principal characters : 



Leistus. — Labrum prominent, arcuate at tip. Mentum feebly emar- 

 ginate with a short emarginate tooth. Ligula prominent narrowed at 

 tip and then trifurcate, bisetose behind the trifurcation, the paragloss^ 

 short with their tips free. Labial palpi long and slender the second 

 joint longer than the last, without setae in front. Mandibles broad, 

 explanate at the sides, acute at tip. Maxillie with slender processes on 

 the outer side of variable length each bearing a stiff seta at its tip, the 

 palpi slender. The first three joints of the anterior tarsi of male are 

 dilated and with squamules beneath. 



Opisthius. — Labrum short, transverse, more prominent at middle. 

 Mentum moderately emarginate, the tooth moderately long with nearly 

 parallel sides, feebly emarginate at tip. Ligula small concealed behind 

 the mentum tooth, narrowed at tip, slightly bifid and bisetose, the 

 paraglossae slender arcuate and longer than it. Labial palpi slender the 

 last two joints nearly equal, the terminal finely ciliate externally, the 

 preceding bisetose in front. Maxillfe ciliate within, the palpi slender. 

 Mandibles rather stout arcuate and acute at tip, outer side not concave. 



