1892] MARYLAND ACADEMY OF SCIENCES. 181 



H. culicis. New sp. 



Pale, smoky testaceous, tiiii2;ed with piceous on the lobe 

 of the head which holds the eyes, and on the tumid lobe 

 behind this. Immature specimens have the front of head, 

 pronotum, excepting the base, and scutellum yellow. 

 Texture thin and flabby, the veins of wing-covers coarse 

 and dark-colored. The last joint of the antennae infus- 

 cated. Rostrum pale piceous, the apical joint yellowish. 

 Intermediate and posterior tibiae and margins of venter 

 pale testaceous. 



. Length to tip of venter, 3-3i millims ; width of base of 

 pronotum, I millim. Only a few specimens have been 

 brought to my notice, and most of them were so tender as 

 almost to prohibit adequate examination. They were 

 taken in Southern Florida, Cuba, Arizona, District of 

 Columbia, and latest of all, Dr. Schwarz has obtained two 

 specimens from the vicinity of Great Salt Lake, Utah, on 

 June 14, 1891. A dwarf specimen from Florida measured 

 only about 2 millims in length. 



Hymenocoeis. JSTew genus. 



Form of typical Uenicocephalus Stal. Antennae much 

 longer than the pronotum, gradually tapering towards the 

 tip ; the basal joint short and stoutest ; the second longest, 

 a little thicker than the third ; the third a little shorter 

 and thinner ; fourth, shorter than the third and a little 

 thinner ; all the joints set with close, erect bristly hairs. 

 Tumid basal lobe of head thicker than the width across 

 the eyes, shorter than wide, longitudinally cleft ; front lobe 

 longest, narrow and snout-like, widened anteriorly ; all the 

 lobes defined by sutures. Pronotum composed of the 

 three lobes which increase in width posteriorly, the an- 

 terior one being only a narrow c^llum for the middle one, 

 which is a knob-like ridge separated from the triangularly 

 expanding, much wider and flatter posterior lobe ; the 

 back margin of the latter broadly sinuated. Wing-covers 



