104 GEO. H. HORN, M. D. 



character of the above species as far as they were known to him. 

 (Spec, et Icon. fasc. 3, No. 9, p. 14). 



The first two species in the above table are more closely allied to 

 the pallida of Europe than the others. 



Among the European species of Helodes and Mlcrocara, Tournier 

 has observed in some of the males an emargi nation of the last 

 ventral segment, with small foveas on one or both of the last two 

 segments. 



H. apicalis Lee. — Form oblong, finely pubescent, color variable. Head 

 moderately denselj' punctate. Thorax twice as wide as long, narrower in 

 front, apex very feebly arcuate, sides more strongly, base feebly bisiuuate, 

 hind angles obtuse, anterior angles rounded, margin narrowly reflexed, disc 

 moderately convex, moderately punctate. Elytra more densely and coarsely 

 punctured than the thorax. Body beneath finely and densely punctured. 

 Length .16 — .20 inch; 4—5 mm. 



The color is variable. In the type the color above is luteous, the 

 tip of the elytra and a small apical spot on the thorax piceous, 

 beneath piceous with pale legs. In other specimens the thorax is 

 entirely yellow. A specimen in my cabinet has the thorax yellow 

 and the elytra black, another in the cabinet of Dr. Leconte is 

 totally piceous. 



There is a slight trace of a post-scutellar depression of the elytra 

 in all the specimens, and in one a vague tendency to become sub- 

 tricostate. 



Occurs in California from San Francisco northward. 



H. maculicollis n. sp. — Form oblong, very finely pubescent, color black, 

 thorax broadly yellow at the sides. Head punctate. Thorax semicircular, 

 apical and lateral margins slightly reflexed, disc moderately convex, not 

 densely punctate. Elytra more coarsely and densely punctured thau the 

 thorax. Body beneath rather finely, moderately densely punctulate. Length 

 .16— .18 inch; 4—4.5 ram. 



One specimen before me has the abdomen pale, the other piceous. 

 This species is closely related to the preceding in form and sculpture, 

 but differs in having the thorax truly semicircular and the head not 

 at all visible from above. 



Canada, New Hampshire and Pennsylvania. 



II. pulcliclla Guer. — Form elliptical, finely pubescent, yellow, elytra 

 each with an oval, basal, piceous spot and another much larger posteriorly 

 two-thirds the length of the elytra. Thorax semicircular, base bisinuate, 

 entire margin slightly reflexed, disc sparsely finely punctate. Elytra mod- 

 erately densely punctured. Body beneath yellow, abdomen at sides often 

 infuscate, surface sparsely punctate and pubescent. Length .12 — .20 inch; 

 3 — 5 mm. 



