CARABIDAE. 49 



dorsal punctures. Prosterniim obtuse at tip. IMesosteriium 

 rather wide, oblique, the epiiiiera narrow. Metastenial epimera 

 distinct, posterior coxae contiguous or very narrowly separated. 

 Legs moderately stout, the tibiae not spinulose externally, the 

 anterior moderately dilated at tip, deeply eniarginate within, the 

 inner spur at the upper angle of the emargination. The tarsi 

 filiform, fourth joint simple. 



The anterior tarsi of the males may have four, three, or two 

 joints dilated, clothed beneath usually with hairs, rarely squa- 

 raules. 



The Broscini have a slight sub-ocular ridge at the side of the 

 head. This ridge is well marked in the Cicindelidie, but has 

 not been observed elsewhere in Carabidae. 



Two species of Miscodera occur in our fauna; 31. arctica is 

 common to the northern parts of both continents ; M. inaiynis 

 is peculiar to Alaska. 



Tribe XXX.— ZACOTI^I. 



Antennas filiform, arising under a slight frontal margin, first 

 joint stouter, cylindrical, third a little longer than the following, 

 the first four joints glabrous. Head subquadrangular, slightly 

 constricted at a distance behind the eyes, temporal cicatrix 

 distinct, front with one supra-orbital seta, clypeus slightly pro- 

 longed and with the usual setigerous puncture each side. Eyes 

 round, moderately prominent, and distant from the buccal fissure 

 beneath. Labrum transverse, feebly eniarginate, sexsetose in 

 front. Mandibles not prominent, arcuate at tip only, acute and 

 without setigerous puncture externally. Maxilla? ciliate within, 

 hooked at tip, the outer lobe rather stout, biarticulate ; palpi 

 stout, the last joint shorter than the preceding, oval, and trun- 

 cate at tip. Mentum transverse, eniarginate, and acutely toothed ; 

 the epilobes acute and prominent; ligula moderately prominent, 

 tip arcuate and free, with two setiE, ])araglossa3 free for a short 

 distance at tip, which is acute, shorter than the ligula; palpi 

 moderate, third joint elongate-triangular, slightly arcuate, trun- 

 cate at tip, the preceding joint shorter and bisetose in front. 

 Thorax ovate, slightly constricted behind, margin distinct, two 

 lateral setiE, one near the middle, one in front of base. Body 

 pedunculate, scutcllum not visible. Elytra oblong-oval, humeri 

 rounded, base not margined, sides narrowly inllcxed, margin 

 4 



