INSECT A — COLEOPTER A . 
193 
the former; appears in June and July; less numerous, habits similar ; 
Ph. hirticula, Kn., appears at same time ; common. In other places, 
Ph. georgicana {Mel. georg., Schonh.) appears in masses in May and 
June. Melolontha variolosa, Hentz. (this is the true Mel. occidentalis, 
L.), is found at some points of the coast, in multitudes but seldom univer- 
sally. The nocturnal Omaloplia vespertina and sericea gnaw the leaves 
of the Rosa ruhiginosa. Anomala coelebs, Germ., to which perhaps Mel. 
varians and lucicola, F., belong, is found in great quantity on the dif- 
ferent species of Sumach, which it often entirely strips of leaves ; and, 
since 1825, has begun to spread itself over the wild and cultivated vine. 
Macrodactylus suhspinosus, commonly called “ rose-bug” in North 
America, appearing at the season of the rose-blossom, and generally 
upon roses, has in latter years very much increased, and extended itself 
to other plants, particularly the vine and fruit trees, and may be esteem- 
ed the worst of all Melolonthidce, as it not only consumes the leaves, but 
also the blossoms and fruit. The development from the egg to the 
beetle takes place in it within a year. 
The Melitophilee have been treated of in Burmeister’s “ Handbuch 
der Entomologie, 3 Bd., Coleoptera Lamellicornia Melitophila.” 
Mulsant (Col. Fr. p. 519) divides the group Cet07iiidce into three sub- 
divisions : Valgarii, Trichiarii, and Cetoniarii. The first differs from 
the others by the hind legs diverging from each other. The last sub- 
division is separated into three genera : Cetonia, with a knob-like dilated 
apophysis of the breast, the others with a simple one ; Oxythyrea {stictica), 
tibias double-toothed; Tropinota {hirtella, L., hirta, F.), with triple- 
toothed anterior tibiae. Under the last genus a new species, Tr. Reyi, 
is mentioned, which has hitherto generally been confounded with 
Tr. hirtella, and is minutely distinguished by the author : it had already 
been described by Charpentier (Hor. ent.) as C. crinita. 
Westwood has contributed much to the knowledge of this group in his 
Ajcana Entomologica ; a peculiar treatise is devoted to the Goliathidce 
of Asia (p. 113). He adds to the genus Narycius, as a sub-genus, Cypho- 
nocephalus, which, at the first sight, especially in the form of the horns 
of the head, resembles Dicronocephalus {Hardwichii), but agrees with 
Narycius in the parts of the mouth, and differs by the simple anterior 
tibiae of the N. ( Cyphonoceph.) smaragdulus, is a beautiful East 
Indian beetle. Mycteristes, with the sub-genus Phcedimus and Jumnos, 
are next mentioned, from which M. rhinophyllus $, and J. Roy Hi are 
figured ; the genus Rhomborhina, Hope, with nine species, is men- 
tioned, of which Rh. apicalis from Nepal, Rh. microcephala from the 
Himalayah, Rh. clypeata from Japan, are new ; and Rh. japonica and 
hyacinthina, Hope, are figured ; a tenth, Rh. pilipes, only cursorily 
mentioned by name, is afterwards, p. 192, again introduced as a variety 
of Rh. Mellii. A new genus, Anomalocera, has been described by Hope, 
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