176 LAMELLICOENIA. 



longato segmentum ventralem 7 m simulante. Venter medio depressus, glaber, segmentis 2°-6 m sequalibus, 



setis elongatis paucis. 

 $ . Pygidium sicut in d 1 , sed lamina ventrali interdum occulta. Venter politus, segmento 5° apice transverse 



exarato-depresso. 

 Long. 16-18 millim. 



Hab! Guatemala, Capetillo (Champion). 



Three examples, two of them females, in one of which the pygidium is not closed on 

 the last ventral segment, leaving a narrow ventral plate visible at its apex. 



3. Phytalus nubipennis. 



Minor, oblongo-ovatus, castaneo-rufus (vel fulvus thorace rufo), nitidus, elytris ventrisque lateribus leviter 

 pruinosis, brevissime recumbenti-setosis (vel nudis), subopacis ; capite lato, dense subgrosse conflu enter 

 punctato, fronte convexa, sntura frontali valde impressa ; clypeo transverso, lateribus haud ampliatis, antice 

 rotundatis, margine apicali anguste reflexo medioque breviter sinuato ; tborace medio subangulatim dilatato, 

 supra sat distanter punctulato ; elytris disperse et parum profunde punctulatis, costa mediana elevata. 

 Variat elytris costula parum elevata submarginali. 



J . Pygidium fere planum, glabrum, disperse punctatum. Venter medio politus, fere glaber ; segmento 5° fovea 

 magna granulata, 6° transversim leviter depresso ruguloso. Antennarum clava mediocris ovata. Ungues 

 basi vix dilatati, apice fissi, dente inferiore paullo fortiore vix breviore. 



Long. 13-15 millim. 



Hab. Mexico, Yolos, Oaxaca (Salle). 

 Four examples, all males. 



4. Phy talus ambigenus. 



P. nubipenni simillimus, coloribus formaque corporis haud differt, sed aliis characteribus valde diserepat. 

 Caput haud magnum, normale, grossius reticulato-punctatum ; clypeo parvo, fere semicirculari, margine alte 

 reflexo, integro ; sutura frontali parum impressa, lsevi ; fronte thoraceque longe erecte hirsutis ; elytris 

 fortius punctatis. Variat, sicut P. nubipennis, elytris costula parum elevata submarginali. 



$ . Pygidium basi paullo convexum, apice planatum, disperse setifero-punetatum. Venter longitudinaliter 

 concavus et canaliculatus, sparsim breviter setosus ; segmenti 5 U plaga posteriore mediana convexa dense 

 granulata, margineque postico arcuatim emarginato, 6° magno, medio depresso et longe et dense setoso. 

 Ungues robustiores, basi magis dilatati, dente inferiore multo latiore paullo deflexo. Antennarum clava 

 valde elongata, ceeteris articulis conjunctis multo longior. 



2 . Pygidium sicut in 3 , sed longior et juxta apicem subtuberculatum. Venter segmento 6° valde convexo. 

 Ungues furcati, dente inferiore angustiore et acutiore sed magis deflexo. 



Long. 13 millim. 



Bab. Mexico, Yolos (Salle), Oaxaca (coll. Bates). 



Two males and one female. In this species the tarsal claws are almost too divergent 

 in their apical teeth to warrant its retention in the genus Phytalus. 



5. Phytalus (?) pubicollis. 



Phytalus pubicollis, Blanch. Cat. Coll. Ent. i. p. 131 l . 

 Hab. Mexico (Ghiesbreght \ Salle ex coll Sturm). 

 The single example in the Salle collection bearing the above name agrees fairly well 



