COLEOPTERA 269 



marginatum. Elytra grosse rugoso-punctata, basim versus sulcis longitudinalibus com- 

 pluribus, male definitis, inaequalia, testacea, maculis nigris plus minusve conjunctis 

 eleganter variegata. Metasternum fortiter punctatum. Abdominis segmenta 2 — 5 

 dense subtilius punctata. Long. 2 '5 mm. 



Remarkable for its fusiform-ovate shape, and the excessively dense coarse sculpture. 

 The metasternum is not so much shortened as is usual in the genus, and the mesosternum 

 in front of the coxae is rather long, horizontal, and densely sculptured except along 

 the narrow articulating margin. No doubt this insect and others allied to it will here- 

 after be separated from typical Apterocis, which are much more strongly convex and 

 differ in the form of the mesosternum, but if so it will be necessary to form several new 

 genera for this remarkable group of insects. 



Hab. Maui, Haleakala (4000 — 5000 ft.). Rare, four examples only having been 

 met with. 



(10) Apterocis ornatipennis, sp. nov. 



Forma, magnitudine, et colore praecedentis, sed pronoto minus dense rugoso- 

 punctato, punctis ipsis facile distinguendis, distinctus. Long. 2 — 2 '5 mm. (Plate X. 



% 1 5-) 



Very closely allied to A. variegatits, and only differing in the sculpture of the 

 prothorax, which is less extremely dense, and though the puncturation is very rugose 

 the individual punctures are moderately distinct, and do not run into one another to the 

 extent that is seen in the other species. The pale colour of the margins of the 

 prothorax is also of greater extent, and in one example the prothorax is entirely piceous 

 in colour. 



Hab. Lanai (2000 — 3000 ft.) ; very rare, two examples only having been met 

 with. 



(11) Apterocis sfrigosiis, sp. nov. 



Castaneus, rufo-brunneus, vel testaceus (an immaturus ?), elytris prothorace palli- 

 dioribus, latissime nigro-fasciatis, maculisque duabus nigris ad basim plerumque ornatis. 

 Pronotum fortiter punctatum et longitudinaliter strigosum, nitidum, postice haud evi- 

 denter marginatum, margine antico pallido, et ad angulos anteriores flavo-maculatum. 

 Elytra fortiter convexa, ad basim latiuscula, apices versus attenuata, basi grosse rugoso- 

 punctata, setas pallidas brevissimas inconspicuas sparsim ferentia. Metasternum sat 

 breve, fortiter punctatum. Abdominis segmenta 4 ultima distincte subtiliter punctata. 

 Long. 17 — 2 '2 mm. (Plate X. fig. 16.) 



In this species the markings on the elytra are variable, the two spots at the basal 



