■I'lll'; l-KAl' I'.KKTLKS. lli)9 



Tii)pecciiu)c, V^iii'o, Ornniic n\)(\ ('r;i\vfoi-tl coiiutics; sccirce. Juno 

 1-June 25. Taken by s\v(»opin>i' i-o.-idsiiic lici-hnii'e. 



2218 (702;t). I'liYLi-OTKKTA .KN'KU oi.i.is Crotcli.. Ti-dc. riiil. Afiul. Nat. i<ci., 

 1S73, Cm. 

 Klougato-oval, ratluT sliMidci'. I'iccdus: licad and llmra.v with a cupro- 

 ous lustre; elytra with a jirtH'iii.sli tiii.i,^': Ict^s iticcdus. tihiu' and tarsi paler. 

 Aiiteiiua' half as loiij; as hady. Joints 2 ." rcddish-ycllnw. 'rimi-ax (inc-half 

 wider Ihan lonir. narrewed in rnnil ; disi; aJulaceinis, rather linely and 

 cldsely imnctale. I'^lytra wider at base llian tliora.x. punelale as nienlinned 

 in ko.v. Length 2 2.ri nnn. 



Clarion County : rai-e. duly 14. Swept I'l-oni hei'l)a<^c along the 

 margin of a woodland pond. Known rroui Kansas and Texas. 



P. ]i)H]'iJili l)nr\", last \-entra! of male witli a deep, rounded de- 

 pression which extends forward in triaudular shape through the 

 next to last N'eiitral, length 2..") mm., was deserilx'd from Cineinnati. 



221".> (702S). I'livi.i.orHKiA rKwisii ('retch.. Prec. riul. Aead. Xat. Sci.. 

 isi;'.. c.d. 

 Klongate-eval. moderately convex. I'iceous; elytra with a bluish tinge; 

 antenna' piceous, tiie liasal joints pah-; lil)ia' and tarsi brown. Thorax two- 

 tliirds wider tlian long, narrowed in front, sides lir ladly eui'ved. surface 

 rather finely and s|iarsely jpunctate. lOlytral punctures coarser thau those 

 of thorax. Last ventral of niali' witli a broad, triangular inii)ressiou. Length 

 2-2.5 mm. 



Two specimens in We])ster eolleetion labelled "Ind." Known 

 heretofore from Illinois westward. 



LVII. Haltic.v Geolf. 17(U. (Gr., "leaping.") 



Oblong or oval, medium-sized, blue, green or ])ronzed, rarely 

 reddish-brown, species, having the head short, nstially deeply in- 

 serted; antenna^ half as long as body, joints 2, 3 and 4 gradually 

 longer except in iiifa: thorax usually one-half wider than long, 

 broadest at base, whieh is ctirved and ^vit]l a itiore or less distinct 

 transverse line just in front; side margins slightly thickened near 

 front angles ; elytra! punctures confused ; front coxal cavities open 

 behind, the prosternum rather narrow betwei^n the coxa^; hind 

 tibia^ not or feebly sulcate, terminated by a short spur; tarsal claws 

 broadly dilated at base. 



The genus is a difficult one, and the species can never be deter- 

 mined with any degree of certainty without a fair number of speci- 

 mens, some of wliieh nuist be males. Unfortunately, this sex is 

 much less abundant tiian the females. The I'ollowing species have 

 been found or probably occur in the State: 

 17<;— 2:',4n2] 



