AMERICAN COLEOPTERA. 



1G3 



had I sufficient details of the other genus would have defined the tribe 

 as indicated. The structure of the labial palpi is that of the present 

 tribe and the ligula of nearly the same type, the paraglossae are however 

 more developed. 



Tribe XXXVIII.— Cratocerini. 

 Antennse shorter than the head and thorax, inserted under a sliglit frontal 

 ridge with however the condyle visible, three basal joints glabrous, 4 — 11 com- 

 pressed or somewhat moniliform. Head short, not narrowed behind to a neck, 

 clypeus slightly prolonged and without setigerous punctures, front with the setiger- 

 ous punctures over the eye extremely indistinct. Ej'es moderately prominent, 

 close to the mouth beneath. Labrum short transverse, feebly emarginate and 

 sexsetose in front. Mandibles moderately robust, arcuate, acute at tip. Maxillae 

 ciliate within, (the inner lobe not hooked in Basolia), the outer lobe slender, 

 biarticulate, the palpi rather stout, the last joint oval rather obtuse. Mentum 

 transverse, deeply emarginate and toothed, the lateral lobes obtuse, obliquely 

 truncate, ligula feebly prominent, tip free for a short distance and arcuate, bisetose, 

 paraglossiB semicorneous, not longer than the ligula (spinuluse at tip in Basolia), 

 and united to the ligula by a translucent membrane, palpi rather slender, the 

 last two joints equal in length the penultimate bisetose in front. Thorax more or 

 less quadrate, not narrowed at base, the setigerous punctures entirely obliterated. 

 Elytra not wider at base than the thorax, sides narrowly inflexed, margin entire, 

 apices truncate or rounded, surface striate, without scutellar stria, dorsal punc- 

 tures ?. Prosternum not prolonged. Mesosternal epimera narrow. Metasternal 

 epimera distinct, posterior coxae contiguous. Legs rather stout, the tibiae not 

 carinulate, the spurs rather small, the anterior tibiae dilated at tip, the outer angle 

 rounded, inner side deeply emarginate. Tarsi rather stout, claws simple. 



The anterior tarsi of the males have four joints moderately dilated and biseri- 

 ately squamulose beneath. 



I regret that I can only imperfectly formulate the characters of this 

 tribe. I know only one specimen of Basolia nitida Sol. It may be 

 almost unnecessary to state that the tribe is not the equivalent of 

 Lacordaire's Cratocerides which equals nearly the Dapti of the present 

 essay. Lacordaire was unfortunate in naming his tribe after a genus 

 entirely unknown to him and which by no means typified his idea 

 of the tribe. 



To Baron Chaudoir we are indebted for a proper description of the 

 tribe and an association of genera which seem naturally to belong 

 together, (Ann. Belg. 1872). From my own study I would place these 

 insects not far from the Lebiide series, the ligula even being quite 

 suggestive of that idea. I do not perceive a close relationship with 

 the Morionini but rather with the Helluonini. 



The three genera are Basolia (= Catapiesis), Cratocerus and Brach- 

 idius, the first two from , Brazil, the third from the Philippine Islands. 

 There is nothinu' allied to them in our fauna. 



