1927 ] 
Four New Helmidce from Cuba 
95 
together nearly twice as long as wide, very little wider than the 
thorax, with the margins straight and very slightly divergent 
from just back of the humeri to apical fourth; outer margin 
finely crenate; fifth and seventh intervals elevated to about 
apical fourth; third interval more prominent basally than second 
or fourth; four inner striae represented by stripes of irregular, 
dense alutation, obsolete on apical fourth; disk dull, sparsely 
pubescent. Length 1.8-1. 9 mm. Width 0.6 mm. Holotype 
and six paratypes with same data as preceding species. Two 
paratvpes from same locality,, Oct. 19. 
There is some variation in the degree of infuscation of the 
elytra. The general habitus is that of the preceding species, 
though perhaps a trifle more elongate. 
Helmis quadra ta n. sp. 
Moderately stout, subparallel; slate-gray, abdomen and 
particularly pronotum with a reddish brick-colored tinge; tarsi 
and antennae rufous; palpi yellowish rufous. Head dull, with 
small scattered black granules. Prothorax subquadrate, barely 
wider than long, widest about a third from base; slightly nar- 
rowed behind, more narrowed in front; lateral margins crenate; 
pronotum with a median longitudinal groove from base nearly to 
apex, the groove limited by two short carinae at base; pronotum 
also with a pair of complete, sublateral carinae parallel with the 
sides in the apical half but sinuate and slightly approaching the 
margins toward the base; distance between carinae more than 
half the discal diameter; disk dull, finely and sparse^ pubescent, 
not evidently granulate. Elytra together about a half longer 
than wide, a little broader than the thorax; margins incons- 
picuously crenate; intervals five and seven with granulate, 
elevated costae reaching to about apical fourth; third .interval 
prominent at base; four inner striae represented by narrow, ir- 
regular grooves; first at least indicated to apex; disk dull, finely 
and sparsely pubescent. Length 1.9-2. 1 mm. Width 0.8-0. 9 
mm. Holotype and four paratypes with same data as H. minima . 
This species, too, is very constant in essential characters. 
In one specimen the reddish shade of the pronotum is diffused 
