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502 . 
MYCET.EA HIRTA. 
Order Coleoptera. Fam. Engidse? 
Type of the Gems , Silpha hirta Mars. 
My cetm a Kirby ,Ste. — Atomaria Curt Cryptophagus Gyl. — Silpha 
Mars. 
Antennae inserted in a cavity before the eyes, longer than the 
head, capitate, hairy and 1 1 -jointed, basal joint stout and ovate, 
2nd rather shorter and slenderer but similar in form, 6 following 
very slender, the 3rd nearly as long as the 2nd ; 4th and 5th 
shorter and oblong, 6th, 7th and 8th moniliform, the remainder 
forming a distinctly articulated club, the 9th joint being the 
smallest and subglobose, 10th semiovate, 11th the largest and 
suborbicular (I). 
Labrum hairy, orbicular, and truncated at the base (1). 
Mandibles subtrigonate, with 2 minute teeth at the apex, the 
internal edge excavated and covered by a thin margin ciliated 
above (2). 
Maxillae with a long narrow pointed lobe on the inside, with 
some strong curved bristles towards the apex, external lobe 
articulated, broader and ovate, ciliated with long bristles at the 
apex. Palpi rather short, stout and 4 -jointed, basal joint minute, 
2nd large subpyriform, 3rd cup-shaped, 4th the longest pear- 
shaped (3). 
Mentum subtrigonate, truncated before. Lip not broader than 
the anterior portion of the mentum, ciliated. Palpi short, stout 
and triarticulate, basal joint small, 2nd and 3rd of equal size, 
the former somewhat cup-shaped, the latter subovate (4). 
Head transverse, clypeus narrowed and a little produced : eyes rather 
remote and coarsely granulated. Thorax broader than the head, 
transverse, anterior margin convex, the angles produced but obtuse, 
posterior margin convex at the centre , the angles rectangular, sides 
broadly margined : scutellum minute and rounded. Elytra broader 
than the thorax. Wings not formed for flight, very long and narrow, 
with only one nervure, obtuse at the apex (W). Thighs thick : tibiae 
simple : tarsi long, 4- jointed , two basal joints of equal length and very 
hairy beneath, 3rd small, 4th equal in length to the others, clavate : 
claws small and simple (5, hind leg). 
Obs. The description and dissections are drawn from the species figured. 
Hirta Mars. — Curt. Guide, Gen. 154\ 
Ovate, shining, ferruginous-ochre, pilose ; eyes black; head mi- 
nutely punctured : thorax sparingly clothed with long bristly 
hairs and coarsely punctured, wdth an elevated line on each side, 
forming with the anterior margin a semicircle, and leaving a 
broad margin on each side, narrowest at the base, with a short 
impressed line on each side : elytra coarsely punctured, forming 
strise producing series of long elevated hairs with smaller ones 
between them : wings tipped with yellow : antennee and legs 
ochreous. 
In the Author s and other Cabinets. 
