J. C, CRAWFORD, JR. 163 



of the niesothorax, which is very much like that of retioilatus 

 Robt., as is tiie cohDr of the head and thorax. 

 Eight 9 , San Jose, May 30-31. 



Halicliis iiidiKtinctus n. sp. 9. — Head and thorax very obscurely 

 dark olivaceous, appearing almost black, finely roughened and dull ; ruetathorax 

 purplish black ; head very finely and closely punctured above antennae, clypeus 

 and supraclypeal area sparsely so, purplish ; mandibles dark, tips red ; clypeus 

 produced ; facial quadrangle slightly longer than broad ; antennae dark, flagellum 

 dull reddish beneath toward apex; head and thorax with rather abundant long 

 white pubescence, more abundant on cheeks and pleura; niesothorax finely, 

 moderately closely punctured, sparser on disk; median and parapsidal grooves 

 distinct; base of metathorax with fine longitudinal striae reaching about half- 

 way to apex, beyond this smooth and shining; pleura finely roughened ; wings 

 dusky, nervures, stigma and tegulae piceous; legs dark, inner hind spur with 2-3 

 long teeth ; abdomen black, shining, very finely and sparsely punctured, apical 

 margins of segments very narrowly subtestaceous, showing plainly only on first 

 segment; abdomen clothed with short whitish hairs, more abundant toward 

 apex; lateral basal margins of segments 2-3 with white hair patches. Length 

 5-5i mm. 



Three }> , San Jose, June 14th and 21st (Lizano coll.). 



DialiCtii*^ costaricensis n. s. 9 -—Head and thorax green ; face 

 closely and coarsely punctured, clypeus and supraclypeal area finely roughened 

 and sparsely punctured, clypeus anteriorly black; antennae black, slightly red- 

 dish beneath apically ; scape reaching anterior ocellus; mesothorax finely rough- 

 ened and with distinct, rather close and coarse punctures; base of metathorax 

 with many fine irregular lines not reaching apex; tegulae large and .shining, 

 black, punctured anteriorly; wings hyaline, iridescent, nervures testaceous, 

 stigma honey color; second snbmarginal cell receiving first recurrent nervure 

 about one-third from base, and second recurrent nervure about one-flfth from 

 apex ; legs black, apical joints of tarsi more or less ferruginous ; inner hind spur 

 with about four long teeth ; scopa white ; abdomen black, shining, sparsely and 

 finely punctured ; segment 1 impnnctate ; apical margins of segments narrrowly 

 testaceous; pubescence of abdomen sparse, more abundant at sides and apically, 

 whitish ; venter with long white hair. Length about 4i mm. 



One specimen from San Jose, taken June 25th. 



This species differs from those found in the United States by the 

 much closer punctuation of the mesothorax, larger tegulse, weaker 

 wrinkles of the metathorax, etc. 



TRANS. AM. ENT. SOC. XXXII. JUNE, 1906. 



