152 



HYMEISTOPTEKA. 



The yellow line on the pronotum is largely separated in the middle ; there is a yellow 

 mark on either side of the scutellum ; and there is more yellow on the tibiae. 



Qo^$s^~ C^^r^y^^r^ 3 ' 



" 14. Crabro alpestris. (Tab. IX. fig. 14, fore leg, 6 .) -^^^^l<CJiK^^J& 



Niger, thorace immaculato (metanoto excepto) ; scapo subtus tibiisque flavo-lineatis ; aus fuscis. d . «£** *L fS > / 

 Long. 8 millim. +L ^ . ? » 



-fiaJ. Mexico, Tepetlapa in Guerrero 3000 feet (H. H. Smith). 



Head closely punctured, sparsely pilose ; the clypeus and cheeks covered with silvery 

 pubescence. Ocelli in a triangle ; the posterior ocelli separated from each other by a little 

 more than the length of the third antennal joint, and by a somewhat greater distance 

 from each other. Clypeus keeled in the centre, the apex incised. Pronotum brown, 

 transverse, the edges oblique, projecting in front into a triangular tooth ; the pleurae 

 excavated, finely punctured, behind shining. Mesonotum finely rugosely punctured ; 

 the scutellum with the punctures slightly more widely separated ; mesopleurae shining, 

 bearing fine, distinctly separated punctures, the oblique furrow distinct. Basal area 

 of the median segment depressed in the centre, and with an oval depression on either 

 side of the base, the keels separating them being raised ; the rest of the median 

 segment densely covered with white hair and rugose, the apex with an almost oblique 

 slope ; the metapleurae not excavated, finely longitudinally punctured. Petiole almost 

 twice longer than wide, shining, with two small yellow marks at the apex. The 

 other segments are aciculate ; segments 2-4 have an elongated yellow mark on either 

 side; the fifth segment is yellow, black at the base and apex, and with two small 

 round black marks in the yellow ; the sixth segment is yellow, except for two small 

 black marks in the centre ; the apical segment is densely covered with silvery hair ; 

 the hypopygium is convex, rounded at the apex. Legs sparsely haired ; the knees, the 

 anterior femora beneath, the anterior tibiae and tarsi, the middle tibise and tarsi 

 beneath, and the posterior tibiae entirely behind and laterally at the apex, yellow. 

 The long spur of the hind tibiae reaches slightly beyond the middle of the metatarsus. 

 For front tarsus see figure (fig. 14). The transverse cubital nervure is received a little 

 before middle of the radial cellule. 



15. Crabro alticola. (Tab. IX. figg. 15, s organ ; 15 0, fore leg, <j .) - S^J^l 



Niger, pronoto bilineato, scutello metanotoque flavis ; alis fusco-hyalinis. $ et <$ ^-^3h{T^ m ^JLt^^ AP ft 

 Long. 11-12 millim. , TX "I """t3 (&*-& 



Eab. Mexico, Ciudad in Durango 8100 feet (Forrer). ' 



Head closely and finely punctured ; covered with a longish fuscous, the clypeus and 

 cheeks with silvery, pubescence; frontal furrow wide and deep. Clypeus somewhat 

 convex in the centre, the apex projecting outwardly, and with a wide and shallow 

 incision in its middle. Ocelli in a curve, separated from each other by about the 



JOjW?o) 



