12 M. L. Peringuey's Descriptive Catalogue [Xov. 30, 



As must be expected, however, there are many forms of transition 

 between the type and the variety. 



The M, Sicheli of Thomson, Monogr. p. 9, is evidently from his 

 ■description the typical tuherculata, although the figure pi. 2. fig. 1 does 

 not show the smooth discoidal patch ; and De Castelnau, who has 

 doubtless seen Thomson's types, says in his Monograph ; ^* that Sicheli 

 is distinguished /rem both M. tuderculata and Dregei in having the disk 

 of the elytra less granulated, and sometimes almost smooth. 



In all probabilities it was tuherculata and not tibialis that found its 

 way to Europe in the last century, because at that time the eastern and 

 midland districts were either not occupied by the colonists or were not 

 visited. 



M. MYQALOIDES, ThomS. 



Monogr. d. Cicind. 1857, p. 8 & &Q, t. 2, fig. 3 & 4. 

 „ M. I udoviei, Casteln. Rey. Zool, 1883, p. 70. 



Male : Black, or brownish black, not much shining : head broad, 

 mandibles long and strong ; prothorax of the usual shape, with a few 

 punctures and bristles, the anterior part more closely punctured ; elytra 

 naiTowed at the base and apex, and ampliated in the middle, the sides 

 of the disk depressed, the median part a little convex and sloping 

 gradually behind ; the line on each elytron more or less pronounced, 

 the sides from the outer margin to the dorsal line finely granulated, the 

 outer margin serrated, with the first tooth distant from the second. 



Length, 46-43 ; width, 18-23'"-™' 



Female : Colouring of the male, elytra parallel, more or less granu- 

 lated, the dorsal line either moderately well defined or obsolete. 



Length, 37-43; width, 18-20™*"^- 



This species varies much in size. 



I have taken as the types those examples the elytra of which are 

 much nar owed in front and behind, and ampliated in the middle 

 (average width, 16-17"'-"^- behind the humeral tooth, 21 to 23'"'"'- in the 

 centre, and 18-20™*'"* at the top of the 'declivity). This form, however. 



