252 Memoirs on the Coleoptera 



moderate sinus; surface sparsely, finely punctulate and also with 

 slight rugulosity, the median line fine; elytra a fourth longer than 

 wide, only feebly dilated behind, distinctly less than twice as wide 

 as the prothorax; striae very fine, not distinctly punctulate; inter- 

 vals flat, with remote and very minute punctulation, the dorsal 

 punctures at basal, and behind apical, third. Length 4.6-5.0 mm.; 

 width 2.2 mm. California (Lake Tahoe). Three examples. 



tahoensis n. sp. 



The entirely red or black prothorax of cyanipennis Dej., is 

 analogous to a character well known in the longicorn Hapalosalia 

 sphcBricollis Say. Lehia ruficollis, of LeConte, does not differ from 

 typical cyanipennis in any character whatever, except the red pro- 

 thorax, and I have examples with both red and black prothorax 

 apparently taken together near Los Angeles; sex seems to have 

 nothing to do with this remarkable dichromatism and there is 

 undoubtedly but one species involved. Lehia mcesta Lee. (L. Sup. 

 p. 203), is a species evidently different from viridis; it is black, 

 with subaeneous lustre, the anterior thoracic impression deep, and 

 the head is longer and narrower than in viridis; mcesta Lee, and 

 rhodopiis Scz., are inscribed as varieties of viridis in the Henshaw 

 list, but they are both fully valid species. The species described 

 above under the name tertiaria is evidently closely allied to maculi- 

 cornis Lee, from Georgia, which has been erroneously suppressed 

 as a race of piimila; it is a much larger species than pumila and I 

 could not fail to identify it as maculicornis , if it were not that 

 the author describes the elytra as obscurely viridescent and finely 

 striate; in tertiaria there is no trace of viridescence and the elytral 

 striae are notably deep; perhaps, however, a conservative course 

 would be to reinstate maculicornis as a fully valid species, with 

 tertiaria as a subspecies. Rhodopus Scz., is also a species closely 

 allied to maculicornis. 



The following list comprises all the non-vittate species of Lebia, 

 having maculate elytra, that are in my collection at present; in 

 some cases, such as guttula, they belong to the inadmissible genus 

 Aphelogenia of Chaudoir. 



Elytra dark blue, crossed before the middle by a broad rufo-flavate 

 fascia, which is emarginate at the suture both before and behind, 

 the apex also rufo-flavate from side to side; head blue-black, the 

 prothorax rufo-flavate; under surface and legs very pale, the tarsi 

 darker, the head black and finely punctate throughout; prothorax 



