210 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



spot on the mandibles at base, spot on the superior orbits, two spots 

 on the vortex, spot on the occiput behind the eye, and with a line- 

 like projection toward the supraorbital spot, the posterior margin of 

 the pronotum, tegulae, two spots near the posterior margm of tiie 

 prescutum, two spots along the notauli on the scutum, two large spots 

 on the scutum posteriorly, a small spot on the lower posterior orbits, 

 an elongate spot on the mesepistcrnum dorsally, circular spot on the 

 sides of the pronotum, most of the metepisternum, dorsal and ventral 

 margins of tergites, the apical margin of the sternites 3, 4, 5, and 6, 

 yellowisli-wUte; legs l)lack; the tibiae and basal joints of the anterior 

 tarsi rufous; wings hyaline basally, fuligmous beyond the basal mar- 

 gin of the stigma; venation dark brown, 



Paratype females show tliat this species may vary as follows: the 

 spot on the metepisternum may be greatly reduced; the line pro- 

 jecting toward the supraorbital spot may be complete or entirely 

 absent; the yellov^^ spot on the lower margin of the posterior orbits is 

 usually wanting. 



Male. — ^Length 8.5 mm. In puncturation and characters of the 

 head, the male agrees with the above description of the female, ex- 

 cept the declivous face is a little more sharply defined on the frontal 

 crest, however the frontal crest is rounded and not margined; anten- 

 nae 31-jointed; the third jomt slightly longer than the fourth and 

 fifth; hjq^opygidium broadly rounded apicaliy. Black and yellow; 

 antennae yellowish-ferruginous, apical half brownish; scape above 

 black; head black; mandibles except apices, clypeus except two 

 points medianly, lateral supraclypeal area, area between the antennae 

 and extending caudad in two lines to the level of the anterior ocellus, 

 the lateral orbits near the top of the eye where they narrow and ex- 

 tend almost to the middle of the occiput, supraorbital spot, connected 

 with the line extending posteriorly to meet the line of the occiput, 

 two spots on the vertex, yellow; thorax black, the posterior dorsal 

 margins of the pronotum, tegulae, most of the prescutum, two spots 

 on the scutum anteriorly, spots on the scutum posteriorly, the scu- 

 tellum, most of the metepisternum, sternum, metepimerun, and epis- 

 ternum, yellow; sternites, and tergites ventrally, and the lateral mar- 

 gin of the tergites dorsally yellow; the rest of the tergites black; legs 

 yellow with the base of the coxae posteriorly, line of the femora and 

 trochanters posteriorly black; wings hyaline; venation dark brown; 

 costa and also margin of the stigma yellowish. 



Type locality. — New Haven, Connecticut. Described from eight fe- 

 males and two males collected byM. P. Zappeforwhom the species is 

 named. The type female was collected as a larva August 2, 1916, on 

 Austrian pine and emerged June 7, 1917. It is recorded under No. 

 670 Connecticut Agricultural Experiment Station. The type male 

 and the paratype male were collected as larvae on August 2, 1916, on 



