June 1899.] Casey: On American Coccixellu^^e. ]0i> 



Head, pronotum. and elytra deep black throughout ; under surface and legs also black, 

 the tarsi picescent. Length 2.9 mm.; width 2.4 mm. New Mexico. 



selhiops Bland 

 The Mexican contristatus is said to be distinct from childreni by 

 Gorham, being larger, more compresso-convex and with the elytra im- 

 maculate. Marginipennis was described by the elder LeConte, and, to 

 distinguish the two authors, I would suggest that the contracted name 

 of the latter be printed " LeC." that of the younger LeConte remain- 

 ing " Lee." 



Ovoideus and desertorum of the table, are in all probability sub- 

 species of californicus, but my material is not sufficient to decide at 

 present, and the forms from childreni to cethiops may be regarded as 

 derivatives of the marginipennis type, but in my opinion specifically 

 distinct. 



Platynaspini. 



The species of this tribe somewhat recall the Chilocorini in form, 

 but are always pubescent. The body is oval, convex but not com- 

 pressed, generally black with small pale spots above, the legs retractile 

 within shallow depressions. The abdomen differs from that of the 

 preceding tribe in having the sixth segment distinct, the fifth being as 

 short as the fourth, and the metacoxal arcs also differ, being nearly as 

 in the Coccinellini, the bounding curve extending rapidly to the 

 apical margin. The antennae are very short, and the fourth joint of 

 the maxillary palpi strongly securiform. The species sre all foreign 

 to the American continents and are only moderately numerous. 



Telsimiini. 



This tribe is necessary for two very small species, having a struc- 

 ture of the epistoma and eyes similar to that of the Platynaspini, and 

 with a convex, pubescent body, but having the maxillary palpi some- 

 what as in Pharini though stouter, the fourth joint being conical, with 

 the apex obliquely truncate. The abdomen differs from that of the 

 preceding tribe in being purely five-segmented, as in Pharini, the 

 fifth longer and strongly rounded. The metacoxal arcs curve outward, 

 becoming rectilinear and parallel to the apical margin at a point be- 

 tween the middle and apex of the segment, and attain the sides of the 

 body. The epi pleurae are rather wide and descend strongly externally, 

 and the legs are moderately retractile. The scutellum is very small 

 and the eyes are finely faceted and pointed antero-internally. The 

 anterior margin of the prothorax is broadly angulate at the middle of 



