PLATE XIII.
( O E D E R — C O L E O P T E R A . SECTION—LAMELLIOOENIA.)
EUCHEIBUS DUPONTIANUS. BUEMEISTER.
Figure 1, Male ; Figure 2, Female.
Eucheirus ieneo-niger, subtus gi-iseo-liirtus ; elyti-is vitta loiigitudinali prope suturam alteraque submarginaU
(postice connexis) fulvo-rufis ; tibiis anticis maris valde elongatis extus versus apicem subangulatis ; intus inei-mibus,
baud penicillatis ; prothoracis lateribus ejusdem sexus subserratis.
Eueheii-us brassy-black, clothed beneath with grey haii-s, each elytron having a broad longitudinal red streak
parallel with the suture, and another naiTower one neai- the lateral margin, united together behmd ; the fore tibia;
of the male long and slender, slightly angulated externally near the tip, and smiple along the inside, without a brush
of hairs at the tip ; the sides of the prothorax in the same sex slightly obtusely serrated.
Length of the insect, about 2 J inches.
Inhabits the Phihppine Islands. Male in the CoUection of M. Dupont. Female in the British Museum.
STSONYMES.—Euehii-us Dupontianus, Burmeister in Germai-, Zeitschrift, f. d. Entomol. iii. 227 ; Genera Insectoruni,
fasc. 8 tab. Euchii-us, fig. 1 (copied m my plate) ; Handb. d'Entomol., iii. p. 701. (Male).
Euchirus 4-lineatus, Waterhouse, Proceedings of Entomol. Soc. 1841, p. 22
OBSERVATIONS.—In retaining the specific name of E. Dupontianus for this fine insect, I follow
a long recognised principle, namely, that the name given to the male of a species should prevail
over that given to the female, especially in cases where priority of date may be doubtful.
In the first plate of this work both sexes of another magnificent species of this curious genus are
figured; and I have now the pleasure of representing both sexes of the Philippine Island insects.
The species of the group with which we are now acquainted, are, therefore—1. E. longimanns;
2. E. Dupontianus ; 3. E. MacLeayanus ; and 4. E. bimucronatus (Ai'baces, Newm.); aU of which I
consider to belong to one genus, forming as many sections, thus—
A. Eore legs of the males very long, with the tibi® externally not armed with a row of spines.
a. Fore tibi® of the males without internal spines, prothorax not very coarsely punctured.
* Fore tibife of the males fin-nished -nithin with an apical brush of hairs. Species 1.
Euch. longimamis.
* * Fore tibia; of'the males without an apical brush of hairs.
tianns.
Species Z. Euch. Dupon
b. Fore tibiie of the males armed with two large spines on the inside. Species 3, Euch.
MacLeayanus.
B. Fore legs of the males moderately long, internally setose, externally armed Avith a row of
spines. Species 4. Euch. bimucronatus.
The last-named species agrees so completely with the other species in the parts of the mouth
(Mr. Mclly having kindly allowed his specimen to be dissected during the visit of Dr. Burmeister and
myself to Liverpool), that I cannot agree with the learned Professor of Halle, in separating it generieaUy
on account of the peculiar armature of its fore feet, and the irregularity of the front of the clypeus.
The figures indicated by the No. 3 at the foot of the plate, are introduced for the pui-pose of showing