294 Mr. F. P. Pascoe on new Genera and Species of 



Achtkosus* laticornis. 



A. fusco-castaneus, nitidus ; clypeo haud cornuto ; prothorace ( $ ) 

 in medio apicis leviter excavato ; antennis art. 6 penultimis valde 

 transversis. 



Hob. Clarence Eiver. 



Dark chestnut-brown, glossy, slightly convex ; head small, 

 a broad triangular excavation between the eyes ; clypeus very 

 convex, not horned; antennas reddish, gradually broader to 

 the seventh joint, the six penultimate very transverse ; pro- 

 thorax broader than long, moderately convex, slightly rounded 

 at the sides, finely punctured, the middle of the apex with 

 an irregular excavation ; scutellum small, triangular ; elytra 

 deeply striate-punctate, the punctures rather small and not 

 approximate ; body beneath reddish brown, glossy ; legs paler; 

 anterior tibiae dilated, serrated externally, and emarginate in- 

 ternally near the base ; middle tibias rather spined than ser- 

 rated. Length h\ lines. 



The female differs in the prothorax being without any ex- 

 cavation, the anterior tibia? without the internal emargination, 

 and the somewhat smaller size. The type of the genus is a 

 much larger and almost cylindrical insect, with a deep excava- 

 tion occupying nearly the whole anterior portion of the pro- 

 thorax, and with a short broad horn on the clypeus. I have 

 another species, from New Zealand j", closely resembling the 

 above, but, from its simple prothorax, a lowering of the type. 

 This genus is represented in South America by Antimachus, 

 which also includes similarly degraded forms. 



Tyndarisus. 



Subfamily Strongyliinm. 



Antennae breviusculae, ad apicem sensim crassiores, art. ultimo prae- 



cedente duplo longiore. 

 Prothorax transversus, lateribus marginato-productus. 

 Tarsi longissimi, lineares, omnes sequales. 



Head small, subvertical, narrower anteriorly ; clypeus trun- 

 cate at the apex ; labrum prominent. Eyes broad, vertical, 

 not approximate. Antennas rather short, a little thicker out- 

 wards, the third joint longer than the fourth, the last oval, 

 twice the length of the preceding. Mentum trapeziform ; 

 lower lip as large as the mentum, rounded in front, slightly 

 emarginate at the apex ; its palpi stout, with the last joint 

 large and subsecuriform. Maxillge small, outer lobe transverse, 



* Pascoe, Journ. of Entom. ii. p. 42. It belongs to the Ulominae. 

 f Probably Uloma Icpvicostata, Blanch. 



