COLEOPTERA. 
233 
rolnintHl ns good epccios, and ptmllum (Wollnst.) is rc-nnmcd maderm. 
Altl'HROLirS (WolL): ohscnrus (Du V. and Dej. nec Salilb.) = 
(Ooinolli), to whicli cmvexmscuhis (Mots.) is added ns a var. ; rt^thorax 
(Dll V.)=hum{l{s (Rosenh.). 
Trichopterygid^. 
Motschoulsky (Bull. Soc. Imp. Nat. Moscou, 1868, no. 3, 
p. 170), who appears to he scarcely au courant with entomolo- 
gical literature/ quoting Schaum’s Cat., 2nd ed. (1861), as his 
sole authority for certain of Matthews’s genera (of which he 
states tliat Mio^us does not at all correspond with his own genus 
of the same name established in 1850), gives the following 
synoptical table of genera, stating that the large number of 
exotic species in his collection cannot be arranged in the genera 
already known : — 
A. Elytra abbreviated, widely truncate, leaving a part of abdomen free. 
Body punctuated, tliickly pubescent and silky on the upper surface. 
n. Post, angles of thorax acuminate. 
t Elytra more or less parallel AcnAXiiiCHis (sic), Mots. 
tt Elytra much attenuated ; no eyes .... M yrmicotrichis, Mots., 
1855 (Astaloptej'y.Vy I^erris). 
b. Post, angles of thorax rectangular Pteryx, Matth. 
c. Post, angles of thorax rounded Elachyx (sic), Matth. 
d. Thorax contracted bhind. 
t Abd. entirely free Ptinella, Motsch. 
tt Abd. slightly visible above Micnus, Matth. {Ejnto- 
mella, Mots.). 
B. Elytra elongate, almost entirely covering the abdomen. Body punctuated 
above, and almost always covered with a more or less fine pubescence. 
a. Elytra ovate, slightly widened behind. 
t Thorax without median longitudinal line. 
PTiLioLA,IIaldenian, 1849. 
tt Thorax with a median longitudinal line. Micrella, Mots. (Aftcrws, 
Mots., olim.). 
h. Elytra almost parallel, narrow, very elongate. 
t Thorax attenuated towards the head. Nanosella, g. n. 
tt Thorax rounded at the sides Acteella, Mots. (? g. n.). 
ttt Thorax contracted behind and slightly cordate. 
Oligella, Mots. (? g. n.). 
c. Elytra contracted behind. 
t Extremity of elytra truncate Micridium, Mots. (?g. n.). 
tt Extremity of elytra attenuated and rounded. 
CAMPLOI)IUM,Mots. (Pg.n.). 
0. Elytra strongly contracted behind. Body very shining on the upper 
surface, polished, or only with scattered punctures, and a few hairs. 
a. Thorax transverse, with a deep median longitudinal furrow and a foveola 
on each side MiLLpiuM, Mots. 
h. Thorax almost quadrate, and slightly cordate towards the elytra, gla- 
brous above OissimuM, Mots. 
