496 BULLETIN 182, UNITED STATES NATIONAL IMUSEUM 



only records from North America are indefinite and sweeping, and 

 I have been unable to find any specimen from it that belongs to this 

 species. The reference in the Bornhaiier and Schubert catalog (and 

 copied by Cameron, 1932) of nihricolUs Casey to rubricollis Reitter 

 is entirely an error in cataloging. The name was preoccupied when 

 Casey used it but the two species are quite different. 

 My specimens were taken from dung and flying at dusk. 



LXXXI. Genus LITHOCHARODES Sharp 



Lithocharodes Sharp, 1876, p. 204. 



Genotype. — L. fuscipennis Sharp (monobasic). 



Diagnosis. — Head and pronotum not densely umbilicately punc- 

 tate; antennal grooves feeble, ocular grooves absent; antennae in- 

 serted close together at front of head, basal segment one-half as long 

 as head, outer segments densely pubescent from fourth joint ; labrum 

 very small, not much emarginate; fourth segment of maxillary 

 palpus much shorter than third, conical; last segment of labial 

 palpus very slender; gular sutures very approximate but not at all 

 united ; neck one-third as wide as head ; pronotum with side margin 

 double, the line separate throughout; prosternum with a pair of 

 sclerites in front of the sternite ; elytra with sutures beveled ; middle 

 coxae moderately separate; posterior coxae contiguous, "triangular"; 

 first and second abdominal sternites absent ; intersegmental mem- 

 branes of abdomen marked with a pattern of angular areas in longi- 

 tudinal bands; anterior tarsi not much dilated. 



Reiruirhs. — This genus is known only from the New World and 

 principally from the Tropics. It is distinguished principally by the 

 structure of the antennae and maxillary palpi. 



I have examined 23 specimens of this genus from the West Indies 

 and assign them to seven species, of which five appear to be new. 



KEY TO WEST INDIAN SPECIES OF LITHOCHARODES 



1. Black (or more or less piceous) with apex of abdomen testaceous 2 



Rufocastaneous, or with head and elytra bicolorod 5 



2. Head with rather dense coarse punctures except along midline 6. trinitatis 



Head with sparse and rather fhie punctures 3 



3. Entirely black except for tip of abdomen 7. unicolor 



More or les piceous or rufescent 4 



4. Head and pronotum with very sparse and very fine punctures 4. cavicola 



Head and pronotum with moderately sparse and distinctly innbilicate 



punctures 3. strigulata 



5. Rufocastaneous throughout 6 



Head and elytra bicolored 5. rambouseki 



8. Head rather densely and not finely pimctate 2. cameroni 



Head finely and sparingly punctate 1. claviscapa 



