154 Journal New York Entomological Society, tvoi. xxix. 



contiguous at the middle, the mesosternal more slender, both projections very 

 strongly margined, that of the metasternal rounding some distance posterior to 

 the apex ; the mesosternum strongly compresso-carinate medially in the basal 

 two thirds. Posterior tarsi nearly three fourths the length of the tibife, four 

 basal joints equal. Length 1.9-2. i mm., width .4-.S mm. 



Male. — Fifth dorsal segment with a rather broad and obtuse but strongly 

 elevated median carina, not quite reaching the apical margin and about two 

 thirds the length of the segment. 



Type ^ and allotype 5 i9 May. 



This species seems to differ materially in color, form and sculp- 

 ture from L. crihratula Csy. and L. pusio Csy. 



Tinotus lateralis new species. 



Form stout, fusiform, convex, moderately shining. Color dull rufo-testa- 

 ceous. Head and the fourth and fifth segments of the abdomen black, the 

 elytra broadly infuscate laterally, sutural margin finely blackish ; three basal 

 antennal joints pale, outer joints blackish piceous. Head, thorax and elytra 

 micro-reticulate, head more shining, punctures fine throughout, those on the 

 head finer and sparser, those on the thorax closer, those on the elytra no 

 coarser than those on the thorax but as sparse as those on the head and more 

 distinctly asperate. Abdomen without reticulation but with long bilineaform 

 scratches. Punctures on the anterior parts umbilicate. Head transverse when 

 inserted, three fifths as wide as the thorax, sides parallel, eyes at less than 

 their own length from the base, antennae reaching the base of the thorax, 

 second and third joints equal, elongate, fourth joint as long as wide, ninth and 

 tenth joints twice as wide as long, terminal joint as long as the three preceding. 

 Thorax three fifths wider than long, sides arcuate, strongly narrowed anteriorly, 

 parallel posteriorly, base rounded, disk very convex, without trace of median 

 impressiion though the pubescence is arranged with a distinct parting along the 

 median line. Elytra as wide as the thorax, sides parallel, suture as long as the 

 thorax, suture slightly impressed. Abdomen slightly narrower than the elytra, 

 sides evenly arcuately narrowed, margins moderately thick. Basal joint of the 

 hind tarsi equal in length to the next two. Length 1.75 mm., width .5 mm. 



Type 28 May. 



The striking coloration of this species together with the form of 

 the antennae, sculpture of the anterior parts and proportions of the 

 thorax and elytra distinguish it from those hitherto described. 



Trichiusa transversa Csy. 



Four specimens of this species were collected under the bark 

 of a decayed log in a colony of the ant Ponera coarctata, subsp. 

 pcnnsylvanica Buckley. Stray specimens of the ant Aphccnogastcr 



