226 



PSrCHE. 



[May-July 1SS9. 



from near the front margin of the clypeal 

 region to near the front edge of the epi- 

 pharynx. The cups vary much in size, 

 some being one-half as large as others ; 

 and those on the sides of the sensory 

 field bear short, and a few others rather 

 long bristles, showing that the taste- 

 cups are modified tactile bristles. 



Lachttostcrnafzisca Frohl. — Labrum 

 deeply notched, the sides of the sinus 

 armed with large, blunt setae. Epi- 

 pharnyx bearing on each side, ovitside 

 of a spring area, a group of about 50 

 taste-cups, each bearing a long setae, 

 and passing externally into a few high, 

 rather slender papillae, without a seta. 

 On the under side of the clypeus is a 

 median group of 10 taste-cups of singu- 

 lar form, the cups being large, with 

 broad bases which posteriorly bear 

 three spines, of which the median one 

 is the largest. Behind these organs, the 

 membrane is covered with slender 

 "gathering" hairs, which difier from 

 any previously obsei-ved in having a 

 nucleus at the base. 



In a specimen from Montana belong- 

 ing to an allied genus, there is a group 

 of about 30 taste-cups, which occupy 

 the same relative position as in the pre- 

 ceeding species. 



In Lucamis dama^ the entire surface 

 of the epipharynx is pilose, and there 

 are no taste-cups, or sensory organs of 

 any kind present. 



Clems nigripes Say. — Labrum 

 deeply cleft, but with no trace of a 

 median suture. Surface of the epi- 

 pharynx not pilose, but with scattered 

 defence setae. Near the edge of the 



bottom of the sinus is a group of 4 or 

 5 taste-cups, situated on each side of the 

 median line, each bearing a small, 

 acute bristle. Behind these, under the 

 clypeus are two groups of 10 taste-cups 

 each, situated some distance from the 

 median line. 



Telephoriis rotundicollis Say. — La ' 

 brum notched. The epipharynx is quite 

 unlike that of other beetles described, ex- 

 tending quite far in front of the labrum, 

 forming a thin, pale, membranous, pilose 

 edge, and not provided with taste-cups. 

 On each side behind under the clypeus 

 is a sensory field with 26 taste-cups, 

 which are rather smaller than usual. 

 Over the labral surface are scattered a 

 few taste-cups ( .?) , but they are small 

 and perhaps not gustatory. 



Lucidota punctata Lee. — In a Flori- 

 dan specimen the labrum is narrow 

 rather long, slightly rounded in front, 

 with no traces of a median suture. Un- 

 der the clypeus is a group of 12 taste- 

 cups, and in the middle region of the 

 labrum situated in a field extending from 

 near the base to near the front edge are 

 about 40 taste-cups, which, however, 

 are not, as is usual, arranged on each 

 side of the median line. The whole 

 surface is pilose, and the taste-cups in- 

 stead of being as usual, situated in a bare 

 region, are scattered among the hairs 

 forming the pile. 



Buprestis maculiventris Say. — 

 Epipharynx with a few scattered, pecu- 

 liar, large setae appressed to the surface, 

 and among them are a few minute, 

 sharp, either curved or straight pegs or 

 setae, which may possibly be gustatory, 



