158 E. T. CRESSON. 



Crypt us ineertus. 



Cryptus ineertus, Cress. Proc. Ent. Soc. Phil, iii., p. 306. 

 One 9 specimen. (Belfrage.) Differs from the type only by the 

 second abdominal segment having a transverse impressed line near 

 the base, which may be an imperfection. 



Cryptus albirollaris. 



9 . — Pale ferruginous ; head black, anterior orbits, clypeus, spot beneath 

 eyes, spot on mandibles and basal joint of palpi, white; antennae slender, 

 black, with a broad, median, white annulus ; anterior margin of prothorax 

 broadly white, a black spot on each side; two longitudinal stripes on meso- 

 thorax, confluent behind, and scutellar region, black; tegulae, spot beneath, 

 scutellum and postscutellum, white; metathorax with two transverse sinuate 

 carinae, and a minute subacute lateral tubercle; wings hyaline, slightly dusky 

 at tips, areolet moderate, 5-angular, side nervures nearly straight, making the 

 cell nearly quadrate ; tarsi whitish, dusky at tips; three apical segments of 

 abdomen black; ovipositor longer than abdomen. Length .42 inch. 



One specimen from Comal Co. Closely allied to atricollaris, Walsh, 

 differing principally by the abdomen being black at tip. 



Cryptus calipterus, Say, Bost. Journ. Nat. Hist, i., p. 234. 



9- — Ferruginous; head not wider than thorax, narrowed beneath eyes; 

 clypeus transverse, convex at base, depressed at tip; mandibles bifid and 

 black at tip ; antennae rather slender, ferruginous, apical third black, joints 

 3 — 6 long, subequal ; metathorax broadly truncate and subexcavated behind, 

 with a rather prominent lateral carina; wings yellow, a broad black or fuligin- 

 ous band a little before middle, and a broad band of same color covering apical 

 third, enclosing an elongate triangular yellow spot; posterior wings with two 

 black or fuliginous bands; four anterior legs pale ferruginous, posterior tibiae 

 black at tips; abdomen oblong-ovate, first segment rather suddenly dilated at 

 apex, third segment with a narrow black baud at base; ovipositor longer than 

 abdomen, sheaths black. Length ,47 — .55 inch. 



%. — Elongate, slender, rather paler than 9 > ^ ace yellowish; a transverse 

 mark behind insertion of antennae and a spot inclosing ocelli, black; antennae 

 long, porrect, fulvo-ferruginous, slightly dusky at apex ; posterior tibiae black, 

 with basal third pale yellow, as well as their tarsi which are dusky at tips; ab- 

 domen long, slender, shining, thickened towards apex, first segment slender. 

 Length .40 — 65 inch. 



Several % 9 specimens examined. (Belfrage ; Boll ; Heiligbrodt.) 

 This and the two following species so closely resemble each other that 

 they may easily be confounded; but upon careful comparison they are 

 easily separated. Calipterus is distinguished by the antennae having 

 no pale annulus, by the posterior wing having two fuliginous bands, 

 and by the sheaths of ovipositor being black. 



