50 



generic distribution of species. To add such trivial characters 

 as Mr. Pascoe has done surely confuses instead of assisting, and 

 would involve the creation of new and unstable genera in 

 bewildering multitude. 



With these preliminary remarks I proceed to enumerate the 

 Leptopsini of the Elder Expedition. 



ESSOLITIINA. 



'Die essential characters of this genus, whicli are sufficient to 

 distinwuish it from all other described genera of Australian 

 Leptopsini, are as follows : anterior coxse contiguous, hind corbels 

 open, eyes more or less rounded, a single claw on each tarsus. 

 The following species presents all these characters, but does not 

 <a<Tree with Mr. Pascoe's diagnosis of Essolithna in respect of 

 some of the many minor characters attributed to the genus. 

 Probably Mr. Pascoe would make it the type of a new genus 

 jillied to Etisolithna. T, however, prefer to call it Ef!Solithna. 

 E. seriata, sp. nov. Ovalis sat convexa ; nigra antennis subferrug- 

 ineis ; squamis nigris et nonnuUis aureis dense vestita, his 

 in prothorace vittas 4 irregulares formantibus et in elytris 

 in striis seriatim maculatim dispositis ; setis brevissimis 

 curvatis instructa ; rostro brevi, antrorsura subdilatato, a 

 capita sulco minus perspicuo diviso, postice longitudinaliter 

 sat subtiliter canaliculato, parte antioa dimidia lamellam 

 at ram glabram retrorsum angulatam (ut in gen. Polyphradis 

 exemplis) formanti ; antennis elytra vix attingentibus, sat 

 robustis, pilosis, scapo oculum vix superanti, funiculi articulis 

 inter se baud multo iniequalibus nuUis transversis, 2° 6° 7° 

 que quam ceteri paullo longioribus, clava quam articuli 

 priBcedentes 2 sublongiori ; scrobibus profundis postice latis, 

 margine inferiori deflexo ; oculis late ovalibus infra paullo 

 angustatis minus subtiliter granulatis ; prothorace transverso, 

 antice paullo angustato, tuberculis parvis umbilicatis crebre 

 obsito, subtiliter canaliculato, lateribus fortiter rotundatis, 

 lobis ocularibus angulatis ciliatis ; scutello nullo ; elytris 

 prothorace fere dimidio latioribus plus quam duplo longior- 

 ibus, punctulato-striatis, interstitiis sat planis, basi emargina- 

 tis, humeris rotundatis ; femoribus prope apicem squamis 

 pallidis annulatis ; tibiis anticis intus minus perspicue den- 

 ticulatis ; segmentis ventralibus basalibus 2 elongatis (basali 

 quam 2"" manifeste longiori, illo antice lato fere truncate), 

 segmentis 3° 4° que conjunctis quam 2"' fere brevioribus, 

 sutura prima leviter arcuata. Long., 2| — 31- 1.; lat., 1 --1J 1. 

 The arrangement of bright golden scales among tlie general 

 black vestiture at once separates this species from all allied forms 

 known to me. Tn a ^veil-marked example the golden scales art; 



