1890.] E. T. Atkinson — Catalogue of the Family Corylophidre. 175 



Family CORYLOPHXDJE. 



Catalogue of the Insecta oj the Oriental Region, No. 9. Order Coleoptera, 

 Family Corylophid^;— By E. T. Atkinson, B. A. 



Matthews places this family close to the Silphidse, but would separate 

 Aphanocephalus as a distinct family (Pseudocorylophida;) to be placed 

 near the Coccinellidse. Leconte observes that ' the wings fringed with 

 long hairs give this family a certain affinity with the Trichotjterygidse, 

 while the loose antennal club, and the comparatively small size of the 

 fourth joint from the end, in several genera, show an unmistakeable 

 resemblance to Anisostoma, and other small Silphidse. The form of 

 the mandibles and the structure of the tarsi, however, distinguish this 

 family from all allies.' Jacquelin Duval, forms two groups : — Corylophini 

 in which the head is entirely hidden beneath the anterior margin of the 

 pronotum, broadly rounded and dilated in front ; more or less rounded 

 before the eyes. Orthoperini in which the head is more or less exposed 

 in front of the anterior margin of the pronotum which is more or less emar- 

 ginate ; abruptly contracted ^before the eyes. In his description of the 

 species of the family that occur in Central America (Biol. Centr. Amer., 

 Col., ii (i), p. 12) Matthews forms several tribes that need not be noticed 

 here. 



Family CORYLOPHIDJE. 



Wollaston Ins. Mader., 1854, p. xxx : ( Corylophides ) Jacq. Duval, Gen. Col. Eur., ii, 

 p. 229 : Chapuis, Gen. Col., xii, p. 259 : Mun. Cat., p. 3818 : Leconte & Horn, 

 Class. Col., 1883, p. 112: Matthews, Ann. Mag. N. H., (5s.) xix, 1887, p. 105; 

 id., Biol, Centr. Amer., Col., ii (i), 1887, p. 12. 



Clypiastrides, Jacq. Duval, Ann. Soc. Ent. Fr., (3s) v, 1857, p. 98 : 

 (Clyjpeastres) Kedtenbacher, Fauna Austr., ed. 1, p. 572. 



Genus SACIUM- 



Leconte, Proc. Acad. Nat. Sci, Philad., vi, 1852, p. 144 ; Clasa. Col., 1883, p. 113 : 

 Jacq. Duval, Gen. Col. Eur., ii, p. 230, t. 56, f. 277 : Matthews, Biol. Centr. Amer., 

 Col., ii (i) p. 108. 



1<=Ciypeaster, Latreille, Kugne Anim., 2 ed., v, 1829, p. 162: Mun. Oat., 

 p. 3820. 

 toifasciatum, Motschulsky, Et. Ent., vii, 1858, p. 122. 



Eab. India. 

 •onvoxlusculum, Motschulsky, I.e., p. 122. 

 ilab. India 



