{: 



460 Mr. A. Murray's Monograph of the gpnxis Catops. 



, J Margins of thorax jiali-r tbrni middle anguslatus. 



L Marjrius of thorax not paler than middle ... ih, var. cisteloides. 



(Base of thorax cnt in, so as not to form a continuous 

 outhnc with elytra (J 

 Base of thorax forming a continuous outline with 

 elytra or nearly so 19 



Colour of i)ubeseence grey and brown or dull yellow 

 on thorax, yellowish hairs on base and margins 

 of elytra wanting or scarcely jiereeptible, and 

 either no bloom or grey bloom on elytra 7 



Colour of pubescence clear yellow on thorax, a 

 brownish-blue or pur])lish bloom on the elytra, 

 (_ and yellowish hairs on base and sides of elytra... 14 



Antenuic longish and subfiliform, not heavily 



clubbed .'. 8 



Antennic shorter and more davate 12 



Q f Elytra transversely strigose acicularis. 



' \ Elytra not transversely strigose 9 



Antenna; with apex pale picipes. 



.\ntennaj with apex not paler than rest 10 



Q J Posterior angles of thorax acuminate behind 11 



■ \ Posterior angles of thorax not acuminate behind ... fiiscus*. 



f Posterior angles much produced, antennfe wholly 



, J ferruginous meridionalis. 



' I Posterior angles only slightly produced, antennae 

 L more dusky towards apex nigricans. 



cy /Antennae very heavily davate chrysomeloides. 



■"■ 1. Antennae only moderately clavate 13 



q f Insect thin and narrow morio. 



• \ Insect shorter and more compact coracinus. 



. r Antenna; comparatively long and subclavate nigrita. 



■ \ Antenna: heavily clavate 15 



{Thorax deeply punctured neglectus. 

 Thorax more or less transversely granulose or 

 wrinkled 16 



P J Thorax nearly j)arallel on the sides quadraticollis. 



■ \ Thorax not j)arallel on the sides 17 



_ f Thorax faintly transversely wrinkled 18 



■ \ Thorax granulose tristis, var. rotundicollis. 



(Thorax short, transverse, and not broad ; elytra 

 usually very long tristis (type). 

 Thorax broad, elytra moderate in length ... tristis, var. grandicollis. 



Middle tarsi widened in males 20 



ddle tarsi not widened in males 25 



fMi. 

 •'• IMii 



Fmscks is one of those species, which, from their transitional charac- 

 crs, nearly put dichotomy at defiance. It might almost be placed under 

 No. V.i instead of No. G, as the base of the thorax has only a slight inter- 

 ■nption in its continuity ; and again, its brown or puqilisli elytra are not 

 inlikely to induce one to place it under No. 1-1 instead of No. 7- 



