INSECTA. 
355 
structure they resemble the larvco of the genus Carahus, but are distinguished 
by the great width of the body, especially of the dorsal abdominal segments, 
and by their beautiful violet colour. 
The same author describes the larva of Eurygnathus latreilUi (Lap.) from 
specimens collected in Madeira by Wollaston (1. c. p. 115, pi. 2. fig. 5). The 
largest specimens were 10 lines in length, and therefore, like the preceding, 
not full-grown. These larva) possess a very small head and have lateral 
processes on the abdominal segments, in these respects resembling the larvae 
of the allied genera Diecdiis and Chlcenius. 
Schaum also describes (/. c. p. 116, pi. 2. fig. 0) the larva of Acanthogenius 
piceus (Schaum) = Creagris labrosa (Nietn.). The specimen sent from Ceylon 
by Nietner is only 5 lines long and 1 line broad, and is therefore immature. 
The head is of moderate size and nearly quadrangular, with an angular im- 
pression on the vertex ; mandibles very short, and the other buccal organs 
small. Thorax a little wider than the head, horny and brown above. Ab- 
dominal segments nearly equal in breadth, slightly narrowed behind ; the last 
segment terminates in two acute processes. Legs verj-^ short, with two very 
small claws. 
Schaum lias published (Berl. ent. Zeitsch. 18G4) a revision of 
the Zabroid group, in which he admits only the two genera 
Eutroctes and Zabrus, regarding Pelobatus (Fischer) as syno- 
nymous with the old genus Zabrus, and Pelor, Poly situs, and 
Acorius (Zimm.) as subordinate groups of Zabrus. 
Of Eutroctes Schaum admits 6 .species, namely, E. chahcus (Fald.), in- 
cluding as varieties E. aurcotm, luguhris, and costipennis (Fald.) ; E. oxy- 
gonus (Chaud.) ; E. her os (Fald.); E. aurichalceiis {Blaps «wrtcA., Adams), 
with which P. adamsii and fiissii (Fisch.), E. mcestus (Kiist.), E. puncti- 
pemiis (Chaud.), and probably E. congenei' (Zimm.) are identical; and E. 
leevigatus (Chaud.), which Schaum proposes to nanie aciculatus, as there is 
already a Zkbrus Icevigatus (Zimm.). The latter may be a variety of E. auri- 
cholceus. 
In Zimmermann’s Group I. of Zabrtfs, Schaum places Z. obesus, gravis, 
deniipes, mnrginicollis, ir^atus, curtus (^ — curtoides, Chaud., and pyrenceus, 
Fainn. & Laboulb.), rotundatus (Ramb.), crcpidodems (^A\fmm) — rotimdicollis 
(Ramb.), ambiguus (Ramb.), angustatus (Ramb.), constrictus (Graells), and 
neglcetm (n. sp.). Group II. includes Z. crassus, leevigatus, semipunctatus 
(Fairm.), distinctus (Luc.) = rotundipennis (Fairm.), contractus (Fairm.), 
ovalis (Fairm.), lecvkollis {^chmrni) — Icevigatus (JXo\chQ),flavangidus (Chevr.) 
—silphoides (Zimm.), and sublcevis (Men^tr.). Group III. includes only Z. 
pinguis and Z. seidlitii (n. sp.). In Group IV. Schaum places Z. grcscus (in- 
cluding as synonyms or varieties Z. puncticoUis (Rrulld), intcrmedius and con- 
vexus (Zimm.), and suhtilis (Schaum)), Z. incrassatus, robustus (Zimm.) = 
fontenvyi (Dej.), damasccnus (Reiche), of which lielopioldes (Reiche) is a 
variety, vatidus (Schaum), and pimctiventris and seriatoporus (n. sp.). In 
Zimniermann’s Group V. Schaum includes numerous species : — Z. femoratus 
(Dej.), asiaticus (lj?cp.)—Pelor ovipe7inis (Chaud.), tumidus (lliAcha) , rejlexus 
(Schaum), rotundieollis (Men^tr. ) = (Peyron), ovipcnnis (OhimA), 
trinii (Fisch.) (Zimm.), and seven new species. Group VI.' con- 
tains the common Zahrus gihbus, of which elongatus (Menetr.), elonqatusipo^id), 
2 A 2 
