AMERICAN HEMim'KKA. So 



Kansas, Colorado, Utah, California and Vancouver Island, and 

 have seen others from Montana and Manitoba. It has also been 

 recorded from Arizona, Texas and Mexico. The specimens from 

 the east are mostly large and dark colored, while those from the arid 

 regions are small and pale. In some of the dark specimens the pale 

 margins of the connexivum are scolloped within, thus showing an 

 ap|)i-oach to those having the connexivum alternated. A good 

 figure of a moderately dark specimen is given at Plate VI, fig. 19 

 of the Biologia. 



Peribaliis abreviatiiM Uhler. 



This species, described as a Holcodethus, has been omitted from 

 the Lethierry ct Severin Catalogue. It seems to be characteristic 

 of the Rocky Mountain region. I have found it quite common in 

 July on the niesquite bushes growing on the dry mountain sides in 

 Colorado. Prof. Wickham has sent me a specimen taken at Kalis- 

 pell, Montana, in June, and Dr. Uhler records it from Kansas, 

 Utah, California, British America and Lower California. 



Peribalii»i> ti*isti<« u. sp. 



Form flepressed, oval, scarcely narrowed posteriorly, sides of the pronotum 

 strong'ly arcuated, apex of the sciitelium broad, scarcely touched with white at 

 tip, connexivum alternated with black and fulvous, beneath black with fulvous 

 spots on the margin of the venter. Fusco-luteous, very thickly and strongly 

 punctured with black giving the whole insect a bronzy-black appearance, espe- 

 cially on the head, sides of the pronotum, base of the scutellum, and sides of the 

 venter. Apes of the head distinctly emarginate, the median line above ob- 

 scurely pale. Pronotum broad, depiessed, humeral angles rounded, edge ful- 

 vous, callousities black, marked with a pale point as in piceus. Scutellum broader 

 at ape.x than in either Umholarins or nhhreviatus, proportionately a little longer 

 and more contracted posteriorly than in piceus, extreme tip paler hut not white 

 and calloused as in our other species. Elytra paler and more mottled than the 

 rest of the upper surface. Beneath with more obvious coppery reflections, punc- 

 tures larger on the pleural pieces, becoming confluent toward tlie anterior and 

 lateral margins. Disk of the venter somewhat paler, the extreme edge with a 

 pale spot on the middle of each segment. Legs pale, the femora with black 

 punctures which may become confluent toward their apex. Antennae testaceous 

 or rufous, becoming black toward the apex, incisures pale. Eostrum reaching 

 between the posterior coxse, pale with the median line and tip bhick. Length 

 8 mm., humeral width 4j mm. 



Vancouver Island, British Columbia. Described from two female 

 examples received from Rev. Geo. W. Taylor, and labelled August 

 20, 1897, and May 24, 1898. 



TBANS. AM. ENT. SOC, XXX. (5) FEBRUARY, 1904. 



