Australian and Tasmanian Matacodermidae. 131 



AA. Antennae -with 9th joint distorted in 

 male. 



h. Head dark McDonaldi, Lea. 



bh. Head pale. 



c. Elytra entirely dark fusicornis, Blackb. 



cc. Elytra partly pale macleayi, n. sp. 



AAA. Antennae witli 11th joint distorted 

 in male. 



d. Elytra partly pale luridicollis, Macl. 



dd. Elytra entirely dark. 



e. Head entirely pale .... mirabilis, Lea. 

 ee. Head entirely dark. 

 /. Tenth joint not distorted in 



in male decipiens, n. sp. 



ff. Tenth joint distorted in male. 



g. Scutellum dark .... gagaticeps, Lea. 

 gg. Scutellum pale. 



h. Legs almost entirely 



pale pallipes, n. sp. 



/(7i. Legs almost entirely 



dark laticollis, n. sp. 



eee. Head with muzzle pale 



i. Ninth joint of antennae in 



male strongly transverse crassicornis, Lea. 

 n. Ninth joint not transverse. 

 j. Apical joints of antennae 



in male pale * . . . . bicolor, Boh. 

 jj. Apical joints dark. 



k. Scutellum pale . . . frater, n. sp. 

 kk. Scutellum dark. 



I. Muzzle very distinctly 



pale flavifrons, n. sp, 



II. Muzzle indistinctly 



pale imitator, n. sp. 



AAAA. Antennae simple in both sexes. 

 B. Prothorax entirely dark.f 



m. Prothorax notched on each side of 



base tenuis, n. sp. 



mm,. Prothorax not notched at base. 



n. Elytra entirely dark niger, n. sp. 



* Usually the entire antennae. 



t There is a variety of 7iiger in which the sides of the prothorax 

 are not entirely dark. 



K 2 



