^g" ] PROCEEDINGS OF THE NATIONAL MUSEUM 191 



DIPTERA 



Family TABANID.E. 



One specimen of a species belonging to the genus Tabanus from 

 Panama. It resembles T. (Atylotus) insuetus O. S., though different. 



GALAPAGOS ARCHIPELAGO. 

 COLEOPTERA 

 Family CARABIILE. 

 Calosoma galapagoum ? Hope, Trans. Eut. Soc, 1838. 



Fifty-eight specimens (2, Duncan Island, 44, Charles Island, and 12, 

 Chatham Island) were collected of a Calosoma that is of a shining 

 bronze-green color and has the elytral intervals distinctly carmated, 

 with the third, seventh, and tenth broken up by large punctures. The 

 male has three tarsal joints strongly dilated and spongy beneath. 

 Hope describes his species above as black aud smooth, with three rows 

 of punctures on the elytra. Still it is likely to be the same species. 

 Together with all the following Galapagos beetles described b.y Hope 

 aud Waterhouse, it was first collected by Charles Darwin during the 

 famous Beagle expedition. 

 Poecilus calathoides Waterh., Ann. Nat. Hist., xvi, 1845. 



A pair was found on Charles Island ; the male is shining, the female 

 opaque. 

 Selenophorus galapagoensis Waterh., Aud. Nat. Hist., 1845. 



Five specimens from Charles Island. 



Family PTINID.E. 



One specimen of the genus Tetrapriocerca was collected on Indefatig- 

 able Island. Although of the same habitus it is probably different 

 from our Florida species, T. longicornis Oliv., which is known to have a 

 wide distribution in Central and South America.. 



Family SCARAB.EID.E. 



Oryctes galapagoensis Hope, Ann. Nat. Hist., 1845. 



One specimen from Chatham Island. It is 1 inch long, shining chest- 

 nut-brown. 



Family CERAMBYCULE. 

 Mallodon sp.? 



TETirteen specimens were collected on Chatham Island and one on 

 Duncan Island. As no species of this conspicuous genus had been 

 previously recorded from this island group, it will be highly interest- 

 ing to see whether it is a new species, peculiar to the archipelago, or 

 whether it belongs to a continental form. This can not be settled at the 

 present time. All the other Coleoptera from this locality are not found 

 elsewhere. 



