72 INSECTA. 
bimaculatus lives m the root of the Eryngiwm campestre, where it 
also undergoes its metamorphosis*. 
Myoprires, Lat.—Rurinius, Thunb.—Rirrenorus, Oliv. Fab. Se. 
Where the wings are also extended, but the elytra very short, in 
the form of a truncated scale, or very obtuse at the extremity. The 
hooks of the tarsi are indented beneath. ‘The antennze are inserted 
on the summit of the head, and strongly pectinated in both sexes—on 
the two sides and forming long filaments in the males, and on the 
inner side only in the females. The maxille are but slightly pro- 
longed. The ligula is elongated and entiret. 
Pexocotoma, Misch.—Ruripuorvs, Payk. Gyll. 
These Insects approach the Myodites in the serrated hooks of their 
tarsi; but their wings are covered by the elytra. ‘The antenne, in- 
serted before the eyes, have but a single range of filaments or teeth 
in both sexes. The scutellum is very apparent. The maxille do 
not project, and the ligula is emarginated f. 
In the others, the wings are always covered by elytra extended 
almost to the extremity of the abdomen and tapering to a point. The 
posterior margin of the thorax is not lobate, or but very slightly so. 
The abdomen of the females terminates in the manner of a tail, 
pointed at the end. The eyes are sometimes emarginated. The 
maxillary palpi are terminated by a large joint, securiform, or like a 
reversed triangle. The extremity of the mandibles is emarginated 
or bifid. The antenne, even in the males, are at most serrated. In 
Morpe:.a, Lin., Fab., 
Or Mordella properly so called, the antennze are of equal thicknes 
throughout, and somewhat serrated in the males; all the joints of the 
tarsi are entire, and the hooks of the last present one or two inden- 
tations beneath. ‘The eyes are not emarginated. 
M. Leon Dufour has observed in the Mordelle a bandes two float- 
ing salivary vessels longer than the body. The hepatic vessels have 
no cecal insertion, an exceptive character in this section. 
M. aculeata, L.; Oliv., Col., III, 64,1, 2. Length two lines; 
black, glossy, immaculate, with a silky down; an ovipositor as 
long as the thorax, by means of which it introduces its ova into 
the cavities of old wood§. 
* See the Nouv. Dict. d’Hist. Nat., Ed. II, article Ripiphore. 
+ Ibid., article Myode. 
+ Ibid., article Pélocotome; Fisch., Entom. Imp. Russ., Il, xxxvii, 9. Severa 
species are found in Brazil. 
§ Add the following species of Olivier: fusciata, duodecim-punctata, octo-punctata, 
abdominalis. See also Fisch., Entomog. Imp. Russ., II, xxxviii, fig. 3,4. His 
genus Ctenopus—Ibid., tab. ead., fig. 1—appears to form the transition from the 
Pelocotome to the Mordelle. ‘The antennze are simple; the labrum is bifid; the 
mandibles are strong and arcuated; the maxillary palpi are very long and almost 
filiform; all the joints of the tarsi are entire, and the hooks of the last are pectinated, 
