638 Mr. M. C'ameron on new Staphyliuulai 



incurved p<3iutc(l spine ; the posterior margin on either side 

 of the middle line, with a nuieh shorter and liner straight 

 spine, 



St. Vineent (//. H. Sinit/i). Type in the British Museum. 



Gykoph.ena, Mannerh. 



The following table may help to facilitate the deter- 

 mination of the West-Indian species so far as known : — 



1. Antenna? at least slightly iufiiscate to- 



wards the apex, in most species 



disiiiicth' darker than the base 2. 



Antenna? entirely clear testaceous yellow 8. 



2. Thorax with lour large punctures placed 



quadrately on the disc ; species dark . . 3. 

 Thorax without tour large punctures on 



the disc 4. 



3. Sculpture of elytra granular quassa, Shp. 



r^lytra finely and sparingly punctured . . (83) coniwxa, sp. n. 



4. reiiultimate joints of the autenuii? trans- 



verse 5. 



Penultimate joints of the antennae not 

 transverse ; disc of thorax exceedingly 

 finely and very sparingly punctured . . (82) yranifera, sp. n. 



5. Intermediate and posterior legs more or 



less iufuscate 6. 



All the legs clear yellow testaceous .... 7. 



6. Middle of disc of thorax finely and 



sparingly punctured ; penultimate 



joints of the antenna^ more transverse . (81) obsctiripcs, sp. n. 

 Middle of disc of thorax impuuctate ; 

 penultimate joints of nnteunfe less 

 transverse (84) sparsejmnctaia, sp. n. 



7. Species brightly coloured; the thorax 



and greater part of the abdomen red- 

 dish-testaceous. Antennte only slightly 



infuscate ^ (93) densata, sp. n. 



Species dark ; pitchy-black or brown, the 

 thorax at most with the sides obscurely 

 lighter, the abdomen at must with the 

 extreme base and apex obscurely lighter. (85) jamaicensis, 9\\ n. 



8. Species brightly coloured ; sculpture of 



elytra never granular 9. 



Species dark ; sculpture of elytra granu- 

 lar in some spncies 13. 



5>. Species minute ; leugth less than 1 mm. (9G) puncta, sp. n. 



Species larger 10. 



10. Penultimate joints of the antennsB three 



times a-s broad as long (94) rufulu, sp. u. 



Penultimate joints of the antennas at 

 most twice as broad as long 11. 



11. Thorax exceedingly finely and sparingly 



punctured throughout ". ('.•2) Iturata, sp. n. 



Thorax with im punctate disc 12. 



