114 Descriptive Catalogue [1896. 



Group 4. 



Elytra foveate on the disk, each one with five raised lines 

 reaching from the base to apex Mashiina. 



Elytra very elongate, with a white line on the second costa 

 and an elongate sutural apical white patch mima. 



Elytra very rugose, each one with five raised lines, a long 

 white band of the second costa and a broad, triangular, apical 

 white patch on each side invicta. 



Elytra very rugose, with the first and second costse on each 

 side united by wavy transverse folds, and having a long white 

 line in the third interval and a supra-apical subtriangular 

 white patch formosa. 



Prothorax with a greyish, pubescent median band ; elytra 

 with a basal white line on the second interval, and a transverse 

 patch of the same colour a little below the median part . . . . Marshalli. 



Prothorax with a median longitudinal pubescent white band ; 

 elytra sub -alveolate, shagreened behind, a long basal white line 

 on the second costa, and a posterior marginal one reaching the 

 suture umftuliana. 



Prothorax without a median pubescent white band ; elytra 

 broadly foveate ; foveas reticulate transversely ; a short basal 

 white line on the second costa, and a posterior marginal band 

 not reaching the suture disse;pta. 



Mykmecoptera angusticollis, Per., 

 Trans. Entom. Soc. Lond., 1894, p. 448. 



Dark metallic blue, raoderately shining on the upper part, under 

 side cyaneous ; labrum white, narrowly edged with black in the male, 

 broadly in the female ; joints of antennae foliate from the fifth to 

 the apical one ; head strigose ; prothorax very narrow, cylindi'ical, 

 nearly twice as long as broad, very slightly narrowed in front and 

 behind, and finely plicate transversely : elytra very narrow at the base, 

 gradually ampliated from the base to two-thirds of the length, convex, 

 with the sutural part ending on each side in a spine, longer and sharper 

 in the male, broadly and deeply pitted, with the punctures deeper in 

 the interior part, and having on each side a white humeral narrow 

 band, a discoidal transverse post-median band narrowed in the centre, 

 and reaching from the outer margin to two-thirds of the width of the 

 disk, and a supra-marginal narrow longitudinal band of the same 

 colour reaching from the rounding of the posterior part to the apex ; 

 legs cyaneous, with the knees slightly reddish. Length 12-i— 13 mm. ; 

 width 3-3 J mm. 



In shape, size, colour, and sculpture this species resembles much 

 M. spectabilis, P^r. ; the joints of the antenni^ in M. angusticollis 

 are foliate from the fifth to the apical one, whereas in M. spcctahilis 

 only the fourth, fifth, and sixth joints are foliate ; the prothorax is 

 still narrower than in the last-named species, and the punctures on 

 the elytra are not so broad ; the humeral white band is similar, but 



