en

LT)

•a:

L I B RARY

OF THE

UNIVERSITY
OF ILLINOIS

FI

v.34

BIOLOGY

Return this book on or before the
Latest Date stamped below.

Theft, mutilation, and underlining of books
are reasons for disciplinary action and may
result in dismissal from the University.
University of Illinois Library

L161— O-1096

\

Published by
CHICAGO NATURAL HISTORY MUSEUM

Volume 34 NOVEMBER 10, 1955 No. 32

A NEW SPECIES OF CHONDRIA

WITH A KEY TO THE BORNEAN SPECIES

(COLEOPTERA: ENDOMYCHIDAE)

H. F. STROHECKER

UNIVERSITY OF MIAMI, CORAL GABLES, FLORIDA

The following new species of endomychid beetle was collected by
the Bornean Zoological Expedition (1950) of Chicago Natural History
Museum.

Chondria cardiaca sp. nov. Figure 64.

Broadly cordiform, ferruginous except for the eyes and joints
9 and 10 of the antennae, which are black. Length 2.4-2.7 mm.
In the male the antennae are about half as long as the body, with
joints 3-8 each longer than broad, subequal in length but increasing
in diameter distally, joint 9 about as long as broad, 10 transverse,
11 oval and about equal in length to 9 and 10 together. Pronotum
transverse, narrowed from base to apex with only moderate cur-
vature of the sides, its front angles somewhat produced and acute,
its raised margins narrowed behind, the hind margin deeply notched
internal to the hind angles. The basal sulcus of the pronotum is
not deep but very evident and ends on each side in a punctiform
fovea. Elytra strongly convex, cordiform, the umbones prominent.
Hind femur with a flange that is produced distally into a slender,
acute tooth.

The female is similar to the male but antennal joints 4-8 are
no longer than broad, the front angles of the pronotum are right
angles, the elytra are of shorter form and the hind femur lacks the
flange and tooth found in the male.

Holotype. — Male collected by Robert F. Inger in the Sapagaya
Forest Preserve, Sandakan District, British North Borneo, July 27,
1950. In Chicago Natural History Museum.

No. 777 331

NOV 1C 1335

332

FIELDIANA: ZOOLOGY, VOLUME 34

Allotype. — Female collected by D. D wight Davis at southeast
end of Dewhurst Bay, Kinabatangan District, British North Borneo,
July 21, 1950. In Chicago Natural History Museum.

FIG. 64. Chondria cardiaca
sp. nov. Left, dorsal view, left
half of female; above, hind fe-
mur of male.

Paratypes. — Two males and one female with the same data as
the holotype, and four females with the same data as the allotype.

Three other species of Chondria from Borneo were described by
Arrow in 1920 (Trans. Ent. Soc. London, pp. 58-61). The follow-
ing is a key to the four species:

1. Elytra plainly seriately punctured 2

Elytra not seriately punctured, cordiform cardiaca

2. Club of antenna much shorter than stalk seriosetosa

Antennal club equal to or longer than stalk 3

3. Sides of pronotum serrulate globulosa

Sides of pronotum smooth; raised margin narrowed behind nitida

J

39

*

UNIVERSITY OF ILLINOIS-URBANA