ROLAND HAYWARD. 85 



placed in irregular rows on the elytral intervals. At first sight it 

 also recalls dyschirinum. 



It occurs in California. Specimens have been received from Po- 

 mona and Palm Springs (Fall ), Santa Ana Canon (Wickham), and 

 Sylvania and Santa Rosa (Ricksecker). 



Group X. rickseckeri. 



To this group I have referred ?. -jingle species which differs essen- 

 tially from any known to me by the presence of three dorsal punc- 

 tures on the third stria. The eyes are moderately large and promi- 

 nent, the frontal grooves single and parallel. The thorax is cordate, 

 very distinctly narrower at base than apex. 



The number of dorsal punctures is repeated in scudderi and its 

 allies, but in the latter group they are placed on the third interval. 



59. B. ricltseclteri n. sp. — Form slender, elongate, depressed, shining. 

 Head and thorax very dark brown, the elytra reddish brown, sometimes darker 

 at apex. Head as wide as the thorax at apex ; palpi rufous ; anteunse about one- 

 half the length of the body, fuscous. Prothorax cordate, slightly wider than 

 long, very distinctly narrower at base than apex, rugose at base; apex nearly 

 truncate; median line distinct, abbreviated before and behind; transverse im- 

 pressions distinct, the posterior deeper; basal impressions deep, unistriate; sides 

 with the margin very narrowly reflexed, strongly arcuate in front, deeply sinuate 

 behind ; hind angles prominent, acute, very finely carinate. Elytra distinctly 

 wider than the thorax, elongate, oblong-ova.te, moderately deeply striate, more 

 finely at the sides and towards the tip ; stri?e distinctly punctate to behind the 

 middle, the first entire, the fifth either entire, or represented by a groove at tip, 

 the seventh wanting; third stria with the first dorsal puncture about one-fourth 

 from base, the second slightly behind the middle, the third about one-fifth from 

 apex ; intervals feebly convex. Beneath dark brown, shining. Legs rufous. 

 Length .13-.15 inch ; 3.25-3.75 mm. 



A very distinct and curious little species. 



In the LeConte collection there are two specimens, one of which 

 is labeled "Perileptus f I have compared this species with Schaum's 

 description of that genus, as well as with specimens of P. areolatus 

 from Gibralter, and there can be no doubt but that it is a Bembidium. 



Under his description of Perileptus, of which P. areolatus is the 

 type, Schaum refers the genus to the Trechini. The correctness of 

 this position I am inclined to doubt, the last joint of the palpi, al- 

 though longer as compared with the penultimate than in any species 

 of Bembldhun known to me, being subulate. Owing to the small 

 number of specimens of Perileptus at my disposal, however, I have 

 been unable to examine the mesosternal epimera. Should they prove 

 to be wide, as in the Bembidiini, the genus should be placed in the 



TRANS. AM. ENT. SOC. XXIV. MARCH, 1897. 



