Occasional Papers of the Museum of Zoology 15 



mountains, but a second specimen taken there has the abdomen 

 37, while the smallest specimen is from Puerto Barrios at sea 

 level. 



In coloration two distinct groups are recognizable in the ma- 

 terial : group I , specimens from Aqua Caliente and El Fiscal ; 

 group 2, specimens from Puerto Barrios, Los Amates and 

 Amatitlan. Group i most nearly resembles the type material 

 from Tuxpan, Mexico. In this group the face markings are 

 pale and not well defined ; pale dorsal thoracic stripes separated 

 in every case from the pale mesothoracic margin; pale ante- 

 humeral stripe barely or not separated to form a superior spot 

 and an inferior stripe ; wide pale stripe on mesepimeron con- 

 tinuous ; wide pale stripe on metepisternum narrowly or scarce- 

 ly divided to form a superior spot and an inferior stripe ; niet- 

 epimeron with the posterior inferior half or slightly more, pale; 

 abdominal segment, i broadly pale below on the sides ; 2 

 with a longitudinal pale dorsal stripe the full length of 

 the dorsum, the auricle, a spot behind it and the inferior 

 posterior margin of the segment conspicuously pale; 3 with a 

 relatively broad longitudinal pale dorsal stripe from the base to 

 the apical spines, and with the inferior lateral margin broadly 

 pale ; on 4 the dorsal stripe extends from the base about four- 

 fifths the length of the segment, and on 5 about three-fourths ; 

 on 6 this stripe is a Httle more than half the length of the seg- 

 ment, dilated at the base to form a transverse band, as on seg- 

 ments 4 and 5, and again equally dilated just anterior to the 

 transverse carina to form a second transverse band ; 7 entirely 

 yellow at base, except the extreme lower border, to the trans- 

 verse carina, with a dorsal prolongation of yellow about two- 

 fifths across the apical black, and with the lower margin, pos- 

 terior to the transverse carina, broadly yellow; lower half of 

 ■8-10, in side view, obscurely pattened in yellow or yellowish 



