162 LAMELLICOENIA. 



12. Diplotaxis • 



Hab. North America, Arizona. — Mexico, Northern Sonora (Morrison). 



Sent by Morrison as D.puberula, Lee, which appears to be an erroneous determination. 

 D. puberula is a Texan species, differing in form and sculpture from Morrison's insect. 



13. Diplotaxis parvula. 



Diplotaxis parvula, Burm. Handb. der Ent. iv. 2, p. 264 \ 

 Hab. Mexico 1 , Juquila (Salle). 



A glabrous and shining pitchy-black species, with short and broad trapezoidal, 

 unsinuated, very coarsely punctured clypeus, the forehead depressed in the middle, 

 and sparingly punctured thorax, pygidium, and abdomen. The sutural interstice of 

 the elytra is minutely and rather thickly punctured. 



14. Diplotaxis sixmaticeps. 



D. parvulce proximo affinis, differt colore aenescenti-nigro, abdomine crebrius et grossius pygidioque grossissime 

 alveolatim punctatis. Oblongo-ovata, fenescenti-nigra, nitida, palpis et antennis pallide runs, pedibus rufo- 

 castaneis ; supra glabra, subtus cum pygidio parum dense fulvo-pilosa ; clypeo brevi et lato trapezoidali, 

 apice truncato, vel ( $ ?) rotundato, grosse punctato, sutura frontali argute impressa medio angulata 

 ibique fronte leviter impressa ; tborace lato, mox pone medium mediocriter rotundato -dilatato. angulis 

 posticis obtusis sed distinctis, supra discrete punctato ; elytris subconfluenter sed baud dense punctatis, 

 costis distinctis parum elevatis ; pygidio parvo, grossissime alveolato, longe erecte piloso ; propygidio 

 ventreque lateribus dense et grosse punctatis, medio ventre leeviore ; tibiis anticis valide tridentatis : ventris 

 segmento 6° exgerto. 



Long. 6|-8 millim. 



Hab. Mexico, Jalapa, Vera Cruz (Edge), Playa Vicente (Salle). 



The sutural interstice of the elytra has only a single row of minute punctures. Many 

 examples from Jalapa and Vera Cruz, and a single one from the Salle collection; 

 the last named is castaneous in colour, probably from immaturity. I received this 

 species many years ago from Paris under the MS. name D. sinuaticeps, Keiche. The 

 name cannot refer to the outline of the clypeus, but to the frontal suture. 



15. Diplotaxis juquilensis. 



Elongato-oblonga, rufo-castanea, supra cupreo-fusca, nitida, glabra ; clypeo brevi et lato trapezoidali, angulis 

 rotundatis, antice vix sinuatis, genis paullo rotundato- dilatatis, supra grosse, fronte subtilius, punctatis ; 

 thorace brevi et lato, antice utrinque (prseeipue in S ) marginato, prope medium dilatato, lateribus antice 

 sinuatis, angulis anticis acutis, posticis distinctis sed obtusis, supra sat grosse et discrete bio illic subcon- 

 fluenter punctato ; elytris elongatis, postice baud dilatatis, sat crebre et grosse subconfluenter punctatis, 

 punctis plerumque transversis, costis angustis parum punctatis ; pygidio grossissime, ventre sparsius, 

 confluenter punctatis: tibiis anticis <$ bidentatis, $ dente 3° parvo; tarsis subtus d dense pilosis; unguibus 

 posticis profunde fissis, dente inferiore vix breviore aut latiore. 



Long. 7-8 millim. 



Hab. Mexico, Juquila (Salle). Three examples. 



In the male the apex of the elytra projects beyond the pygidium. The outline of 

 the clypeus is very similar to that of the female of D. nitidicollis. 



