H. C. FALL. 127 



Europe, and is also known from Siberia. Very few American 

 specimens have been seen by me, and these from the above men- 

 tioned locality only. It is possible that they are only chance impor- 

 tations. Mannerheim's para Helical lis has been declared to be a 

 synonym of consimilus by European authorities. It was described 

 from Finland if I mistake not, and has found a place on our list on 

 the supposition that it occurs in Alaska. I am disposed to doubt 

 the accuracy of the reference, and I note that Belon does not include 

 it in his recent catalogue. 



E. mill ill us Linn. — This extremely common cosmopolitan species is so well 

 known as to need little comment. It is quite closely related to the two preced- 

 ing species, and the characters in the table will probably suffice for its recogni- 

 tion. The great majority of specimens, as seen in this country at least, are 

 brown, while both nigritus and consimilus are black or piceous black — so far as 

 observed. In minutus the prothorax is larger than in either of the others, and 

 the sides are distinctly convergent from the front angles to the base, while more 

 nearly parallel in consimilus, and almost perfectly so in nigritus. The elytral 

 intervals are a little narrower than in consimilis, and are distinctly alternating 

 in convexity. 'PL III, fig. 20). Length 1.2-2.2 mm. 



Hab.—~Ne\v Hampshire; Massachusetts; New York; Pennsyl- 

 vania; Maryland; District of Columbia; Michigan; Wisconsin; 

 Illinois; Missouri; Texas; Wyoming; Colorado; Washington; 

 Oregon ; California ; Alaska. 



The above localities (except Alaska) are represented in the mate- 

 rial at hand, but it probably occurs in every part of our territory. 



E. ere n al us Lee. — Moderately elongate, brown or piceous, rarely testaceous, 

 legs and antennae rufotestaceous. Head rugosely punctate, median sulcus indis- 

 tinct; eyes moderate; tempora parallel, about one-half the length of the eyes; 

 antennae reaching the middle of the prothorax, compactly formed. Prothorax 

 subquadrate, widest at or a little before the middle, the sides anteriorly a little 

 arcuate, posteriorly slightly concave and a little convergent: surface rugosely 

 punctate, except along the basal margin, which is quite smooth ; median sulcus 

 vague; subbasal impression moderately deep, not interrupted at middle. Elytra 

 elongate-oval, very coarsely puuetate-striate, the intervals usually narrower than 

 the punctures throughout. Metasternum subimpunctate, marked with rather 

 coarse, moderately long ruga? radiating from arcuate post-coxal fossae. First ven- 

 tral with distinct longitudinal ruga?, the second with traces of similar sculpture. 

 (PI. IV, fig. 21). Length 1.2—1.4 mm. 



Hab. — California (San Jose; Pomona; Palm Springs; San 

 Diego) ; Utah (Provo ; Mill Creek ; Utah Lake) ; Texas. 



The smallest species of the genus, and very easily recognized by 

 the very coarse punctures and narrow intervals of the elytra. The 

 prothorax lacks almost entirely all impressions, except the basal and 



TRANS. AM. KNT. SOC. XXVI. NOVKMBKR. 1899. 



