NORTH OF MEXIl 0. 291 



This species has been for a long time considered as the female of contortus, but the 

 very marked difference in the form of thorax, and the \ r\ feebly elevated elytra! ridges 

 not serrate at the summits, have c ius«d me to place it as distinct. In all the sp icimens 

 of contortus before me, the median costa does not extend so far forward as to touch the 

 thoracic base, while in regularis this i- the case. 



S cimens sent from Texas bj <■. W. II Ifrage, do not differ in size from the preced- 

 ing spe< 



TRIBE XV — BRANCHINI. 



Body oval, apterous. Middle coxae with distinct trochantin. Antenna' slender, outer 

 joints gradually broader. Mentum moderate, trapeziform emarginate in front, inserted on 

 a gular peduncle, which is emarginate and fissured, and not covering the maxillae. Palpi 

 slightly dilated. Intercoxal proc ss of abdomen triangular, rounded at tip. 



BRANCHTJS, / 

 Brancbus, Lee, Class. Col. N. Am. 



B. floridanus, Lee, New Spec, p. 3. Florida.* 

 Length .60 inch. 



B. woodi, Lee, es, p. Ill, note [sland of New Providence. 



B. obscurus, Born, Proc. Acad. 1866, p. 398. Nicaragua. 

 Anectus vestitus, Born, Proc. Acad. 1866, p. 399. Honduras. 



Anectus differs from Brancbus in the absence of anj prolongation of the external apical angle of the anterior 

 tibise, and other cbara d mentum. 



TRIBE XVI CONIONTINI. 



Body elongate oval or sub-globose, apterous. Labrum very prominent. Mentum 

 small, trapeziform, emarginate in front, ligula transverse lunate. Gular peduncle very 

 short. Anterior coxae sub-transverse, middle coxa' with distinct trochantin. hind coxa' 

 narrowly separated, inter-coxal process acute. First joint of hind tarsi very long. Our 

 genera are three in number, and may be arranged as follow-: 

 Antenmr short. 



First joint of anterior tarsi prolonged into a spine. 

 Antenna- long. 



Anterior tibiae with outer angle prolonged. eusatti 



Anterior tibiae truncate at tip. coniontis. 



The la^t two genera differ also in their form. Eusattus being broadly oval, Coniontis 

 elongate oval, with sides more or less parallel. 



* In addition to the species above indicated, t«" other species are known, and also another genus with a -milc1<- 



vp.-ricS. 



