cussively (o a 



species, body 

 i'atefl mediim 

 '^1 siniill lat- 

 •p, divGrning 

 very minute 

 iioiliiiu line, 

 mm. 



ities. Men- 

 il'les nearly 

 Antennae 

 nd sinallnr, 

 it enlarged, 

 ill, salient, 

 narrowing 

 First joint 



elongated, 



'ticulars : 



ust than 



urax has 



.single 



in the 



♦'xists. 



tijw (if 



pruaeh 



be of 

 iifiiris. 

 Terices 

 ut one 

 We are 

 > local 



f 



NORTH AMERICAN OOI.EOPTERA. 



77 



As til the tarsi of this genus, sonic (lirterencc of opinion has been ex- 

 jirt'sscd. Kriehson niaintaininu' a tivc-joiiitcd tarsus with the lirst joint 

 small. Duval disseeted the tarsus and found four joints oidy. with the 

 first joint liilolied. On I'iate l\' will he found a representation of the 

 middle tarsus of our species as it apjiears to the writer under a power of 

 about fifty diameters; and I am inclined to agree with Krichson and 

 Laeordaire as to its five-joiiiied nature, both from analogy and ap- 

 pearance. 



.Siili-family III.— CUCL'J1>.'AH 



The chief point of distinction between this sub-family and the preced- 

 ing, is the absence of tlur corneous plates concealing the maxillae, these 

 ,>;ing rejilaced by small projections not separated from the otlier portions 

 of the under surface by a sutur(^ Two tribes are indicated in our fauna 

 as follows: 



First jiiiiit 111 nnlonnue lisually Mioderiite ; hind tarsi nf % tciur-Jciintcd. 



I. ClCI.JlNI. 

 VirM Jiiinl (it'iinlonnae uroatly eldngated ; tarsi all five-jiiinted il. Bhh.nti.m. 



Tribe I.— Ciicu.iiNr. 

 The table of genera given in thr ('la.>is. of the Col. of X. A. cited 

 above seems to meet most reiiuirenii'nts. and I simply transfer it with the 

 following modifications : Xnrthi'diix apji:irently having the greatest aftinity 

 with the I'as.sandriiiae is jilaced first, and the striation of the prothorax 

 given as the distinguishing feature between it and Prdiuviis instead of 

 till! jiosition of the eyes. /'<iriiii</iif)i is nn'i'ged with Lit iiiapfi/n iis, 

 and one new genus is added Thus changed the table stands as follows: 



rnisternuiii narrow 2. 



Frosternilin wide; bddy depressed 4. 



■_'. — Hind anijles ni' lu'ad prominent II. 



I'ind angle.s (if iiead not proniiinMit. 



BiMJy cyiindrii'a' ; proilicira.x margined NartliecillH. 



Body depressed ; prothdrax not margined. I*e<liacil!>i. 



3.— .\nlcnuae not ibieker toward the lifi ClIVIlJUN. 



4. — Klytra very slini-i ; jirniburax imt iMaru;iiied Ilio. 



Klylra Idiii!;; prollmra.x margined ,'>. 



Sjiiirs lit' IViiiit tiliiai' Mnei|iial laeillopllIflPIIN. 



Sjiurs of IViint tibial' iM|ual liatliropilM. 



6. — Second joint, nl' antennae atliicbed to llie side o|' the lirst joint wliicli is cjI' ab- 

 normal form Ily Sillier iiM. 



in /j^iinophld'iis nn{\ //iit/iropns the striav' on the prothorax are coii- 

 stiint ill every species and individual which i have examined, and there- 

 fore tht; ground for the sejitiration of />. inii/iisfii/ii!< given by Dr. Le- 

 Conte in his Cla.ssilication will not liold good, the position of the eyes 

 b.'ing plainly of no value. 



(20) 



