492 Longicomia Malay ana. 



Arrhenotus. 



Arrhenotus, Pascoe, Trans. Ent. Soc, Ser. 2, iv. 242. 



Caput parvura, porrectum, clypeo rotundato. Oculi 

 profunde emarginati. Antennce graciles, corpore lon- 

 giores {<$)', scapo subfusiformi ; articulo tertio multo 

 longiore ; quarto prjecedenti fere a^quali ; cfeteris 

 brevioribus. Protkorax transversus, dilatatus (c?), 

 marginatus, infra marginem inemiis. Elytra sub- 

 depressa, apicem versus paulo augustiora, basi sub- 

 lobata, humeris rotundatis, apicibus emarginatis. 

 Pedes breviusculi, a^quales ; femora fusiforuiia ; tarsi 

 subdilatati. Sterna ut in Tviesistenio. Abdomen 

 segmento ultimo inermi. 



The prothorax is dilated and margined at the sides in 

 this genus as in Sphingnotiis, PoIy.vo, and Elais, but it is 

 not spined below the margin, and in this respect it agrees 

 with Mneside, which again, is a stouter form than Arrhe- 

 notus, vrith shorter antennae, the third and fourth joints 

 of which ai-e not longer than the scape. The females 

 have the prothorax only very feebly margined ; in the 

 males, even of the same species, it varies considerably in 

 breadth. The genus was originally characterized from a 

 female specimen, aud was separated chiefly on account 

 of its slender antennte and generally weaker figure ; con- 

 tinued additions to the T))iesisternince induced me to 

 unite it to Tmesisterniis as one of its aberrant forms, but 

 as most of these have been since decribed by M. J. 

 Thomson, I return to my first idea. Arrhenotus Wallacei, 

 unlike the Tniesisterni, delights in the hot sunshine. 



Arrhenotus Wallacei. 



Pascoe, I. c, pi. xxv. fig. 1. 



A. fuscus, flavo-varius ; elytris maculis numerosis aureis 

 distinctissimis ornatis, apicibus mucronibus duobus 

 sequalibus terminatis. 



Hah. — Macassar. 



Dark brown, slightly shining ; head and prothorax with 

 a golden yellow pubescence, marked with three blackish 

 stripes, the central one glabrous ; scutellum semicircular, 

 golden, with a central blackish stripe ; elytra ANnth nu- 

 merous very distinct golden yellow spots, not meeting at 



