CEYPTTJS.— JOPPIDIUM. 209 



being broader and not so much hollowed at the sides ; in the metanotum having two 

 distinct keels, both bending upwards in the middle ; in the tubercles being very obtuse ; 

 in the abdomen being broader, the petiole without black ; in the areolet projecting much 

 more, and sharper on the lower side, the recurrent nervure, too, not being received in 

 the middle, as in C. hebetis ; and the ovipositor a little longer, the sheaths in both 

 species being rufous. In C. fraternans the mesosternal furrow is semiobsolete ; in 

 C. hebetis it is deep and conspicuous. 

 Allied to the Texan C. sororius, Cresson. 



22. Cryptus guatemalensis. 



Ferruginous ; lineis mesonoti, apice tibiarum posticarum lsete terebraque, nigris ; antennis longis, runs, articulis- 



3°, 4° et apicibus lsete, nigris ; alis flavo-hyalinis fusco-bifasciatis, stigmate flavo, apice nigro. 2 . 

 Long. 12 millim. 



Hab. Guatemala, Duenas (Champion). 



Antennae longer than the body, the base of the flagellum thin, the rest thicker. Head 

 broader than the thorax, finely and closely punctured, except the depression above the 

 antennae ; sparsely covered with a silvery pile ; front broadly projecting below the 

 antennae, the projecting part separated by a depression from the clypeus, which also 

 projects ; tips of the mandibles black. Thorax opaque, finely and closely punctured ; 

 the mesonotal furrows obsolete, except in front ; two broad black lines in the centre, 

 and a shorter one at the side, black. Scutellum flattish, the sides not hollowed. Meta- 

 thorax with a gradual slope, the apex hollowed, and with two transverse keels in the 

 middle ; without tubercles. Petiole rather broad ; the postpetiole punctured, the punc- 

 tures wide apart, the extreme apex shining and impunctate. Abdomen finely punctured, 

 the junction of the segments shining, impunctate ; ovipositor as long as the hind tibiae. 

 Anterior tibiae and the hind tarsi obscure yellow. Areolet 5-angled, the lateral nervurea 

 converging towards the top, the bottom forming a moderately sharp angle ; the recur- 

 rent nervure received a little before the middle. The fasciae on the wings are as in 

 C. fraternans and C. hebetis, but narrower, and scarcely so deep in tint. 



Easily known from the two preceding species by the longer and thinner antennae^ 

 which have the fourth and fifth joints black, and the middle not yellowish ; in the meso 

 notum being marked with black, the abdomen without a black band on the third 

 segment; in the punctured postpetiole, the black sheath of the ovipositor, &c. The 

 mesosternal suture is indistinct. 



JOPPIDIUM. 



Joppidium, Walsh, Trans. St. Louis Acad. Science, iii. p. 69. 



This genus, so far as at present known, is peculiar to America. The antennae in the 

 female are like those of Joppa, but those of the male differ ; it also diverges from that 



biol. CENTE.-AMBK., Hymenopt, August 1885. 2 ee 



