290 Transformations and Habits of Blister-Beetles.  {May, 
3d.—The larger and much more spinous triungulins of the 
less prolific Epicauta, Macrobasis, and Henous; with unequal 
thoracic joints, powerful mandibles and maxillz, shortened lab- 
rum, slender femora, well-armed tibiz, slender, spine-like, less 
perfect tarsal claws—combined with an instinctive love of dark- 
ness and tendency to burrow and hide in the ground. The second 
larva takes the same food as the first, its skin is almost entirely 
cast from the coarctate larva, while the subsequent changes are 
independent and entirely free of the shell of this last. 
Larval Habits of Cantharis—The question naturally arises here, 
whether Cantharis, in its larval habits, will most agree with Meloë 
and Stfaris or with Epicauta. The triungulin, except in becom- 
ing almost black, has much in common with- Meloë, in the sub- 
equal thoracic joints, and the long antennz; also in its habit, 
observed by Lichtenstein, of fastening to bees! The fact that it 
can nourish on honey, though it does not appear to do so freely, 
would also indicate that it breeds in the nests of solitary bees. 
Nevertheless, in the slender thighs and the caudal and abdominal 
characters it agrees more nearly with Epicauta, and in the stage 
following the first molt the legs are still quite long and the general 
aspect much like the carabidoid stage of that genus. I should not 
be surprised, therefore, if Cantharis also nourished on locust eggs. 
What is Known of the Larval Habits of other Meloid Genera.— 
Mylabris Fabr. (nec Geoff.), according to V.-Mayet, is much less 
prolific than any Meloids so far observed. The egg is 2.5 mm. 
long and is % as wide, with a tolerably thick shell and the em- 
bryo more fully bent within it. The triungulin has many of the 
characters of Epicayta, judging from the published description 
(Ann. Soc. Ent. de Fr., 1876, p. cxcvi.), which is, however, not suf- 
ficiently detailed as to the trophi. I doubt not that the genus 
will be found to infest locust eggs. 
Horia Fabr., from what little is known of it, would seem to have 
a similar partial parasitism to Meloë, but on carpenter bees. 
‘Tetraonyx Latr., was found by Guérin-Meneville in places fre- 
quented by ERE bees. 
The eggs of Apalus Fabr., as well as its triungulin, are said to 
resemble those of Meloë 
Zonitis Fabr., is kowi to develop in the cells of Osmia and 
UR, and to have a coarctate larva much like that of wens 
e this was published M. eo writes me: “ lasd only fasten to 
when rescinded i tubes with them. At liberty they do n ‘inate flowers, like Mal 
in search of og hae run quickly on the soil, just as you peee for Zpicauta? 
