1938 ] 
West Indian Gyrinidx 
91 
ture obliquely at about its inner third ; in the 9 tomentous 
border of elytra regularly broadened to about % of the 
length of elytra, the last part of the border therefore a little 
narrower than in the $ , reaching the truncature less ob- 
liquely and slightly convexly curved. Truncature of elytra 
moderately oblique in the $ , more oblique and slightly con- 
cave in the 9 , exterior angle a little projecting, briefly 
denticulate, sutural angle broadly rounded, more produced 
in the 9 . Anterior tibise of the $ dilated towards the apex, 
exterior apical angle rounded; anterior tarsi moderately 
dilated, narrower than the tibise, slightly attenuate towards 
the apex. In the 9 the anterior tibise are less dilated, the 
tarsi narrower, subparallel. A3deagus pale yellow, long and 
slender, about as wide as the lateral lobes, subparallel basally, 
attenuate in about apical third, apex finely acuminate. 
Habitat: Cuba, eastern Oriente, Mts. N. of Imias, 3000- 
4000 ft., July 25-28, 1936 (Darlington). 
Type $ and Allotype 9 (Type no. M. C. Z. 23,060) in the 
Museum of Comparative Zoology at Harvard College, Cam- 
bridge, Mass.) ; paratypes 9 $ S , 8 9 9. Further speci- 
mens, U 1 ?, from eastern Oriente, upper Ovando river, 
1000-2000 ft., July 17-20, 1936 (Darlington) agree with the 
typical specimens. 
A small series however (4 $ $ , 1 9) from the Cobre 
Range, Oriente Prov., about 3000 ft., July 3-7, 1936 (Dar- 
lington) differ by the pygidium being nearly totally black, 
only the tip yellow (=a. pygidialis nov., type no. M. C. Z. 
23,061) . Also these specimens are a little larger in size, and 
in the 9 longitudinal striae are more distinctly marked on 
the reticulate portion of the elytra. 
The new species differs from Gyretes cubensis Reg., the 
only species of Gyretes hitherto known from Cuba, by its 
larger size, broader, less elongate and less vaulted body, 
yellowish labrum and tip of pygidium, brighter coloured 
undersurface, sutural angle of elytra and apical exterior 
angle of anterior tibiae rounded. 
Somewhat resembles G. vulneratus Aube from Haiti, but 
a little smaller in size and differing by the somewhat nar- 
rower tomentous border of elytra, the yellow tip of pygidium, 
rounded exterior apical angle of anterior tibiae, the latter 
less broadened in the $ , with narrower anterior tarsi. The 
