266 HETEROMERA. 
Elytra flattened on the disc or convex, without prominent callus. 
Antenne with joints 5-11 broadly widened and forming an elongate club, 
the penultimate joints strongly transverse, the fourth joint narrow. 
Body entirely black; elytral pubescence uniform . . . . . . . Species 4. 
Body metallic bluish-green; elytral pubescence uniform ; pygidiam short . Species 5. 
Body black; xruginous-pubescent, the thorax and elytra with black 
markings; pygidium moderately long . . . Species 6. 
Body black; densely cinereo-pubescent, the thorax ani elytra with black 
markings; pygidium rather short . . . : rar . Species 7. 
Body black, the elytra brownish-yellow or baivous, with a large scutellar 
patch and the suture black; the elytral pubescence in great part 
yellowish-cinereous; pygidium short . . . . . Species 8. 
Antenne with joints 5-11 moderately widened or slender, the fourth joint not 
or very little stouter than the third *. 
Body black; elytral pubescence uniform or with single intermixed cinereous 
hairs; pygidium moderately long. . . . . » oe « « « « . Species 9. 
Body black, the thorax or the thorax and elytra with cinereous- or fusco- 
cinereous-pubescent markings or spots (1. signata, var. 8, excepted). 
Species cuneiform, large or moderately large, with long stout pygidium, 
the latter truncate atthe tip . . . . 2... . «6 «. « « « Species 10-12. 
Species smaller, with more slender pygidium .. . . . « »« « Species 13-18. 
Species small, with long and very slender pygidium, the latter acuminate. Species 19, 20. 
Body black, the humeri sometimes fulvous, the elytra with oblique narrow 
lines of yellowish-cinereous pubescence; pygidium rather short. . . Species 21. 
Body black, with the suture narrowly and an oblique narrow line on the 
basal half of the elytra cinereo-pubescent ; pygidium rather short . . Species 22. 
Body black, with silvery-pubescent spots on the thorax and on the base of 
the elytra, the latter with more than the apical half brown-pubescent ; 
the head silvery-pubescent at the sides, blackish in the middle ; pygi- 
dium not very long . . . . Species 23, 24. 
Body black, the thorax usually rufous, ‘the elytra with more chai the apical 
half brown-pubescent, and with some cinereo-pubescent markings on 
the basal part; pygidium rather short; antennz with the penultimate 
joints transverse . cee Species 25. 
Body black, the elytra with the sides broadly falvosvafons s at the base ; the 
thorax and elytra with bright silvery-pubescent markings, the elytra 
with a broad anteapical belt of brownish pubescence; the head silvery- 
pubescent at the sides, brown-pubescent in the middle; pygidium long. Species 26. 
Body black, the elytra with an oblique fulvous stripe extending from the 
shoulders towards the suture, the suture and an anteapical fascia 
yellowish-cinereous-pubescent ; pygidium rather short . . . . . Species 27. 
* In our unique example of M. nigromaculata the antenne are broken off, but the species apparently belongs 
to this section. 
